Privacy Policy

Last updated December 30, 2025

This privacy notice for Kakera ("we," "us," or "our"), describes how and why we might collect, store, use, and/or share ("process") your information when you use our services ("Services"), such as when you:

• Download and use our mobile application Kakera, or any other application of ours that links to this privacy notice
• Engage with us in other related ways, including any sales, marketing, or events

Questions or concerns? Reading this privacy notice will help you understand your privacy rights and choices. If you do not agree with our policies and practices, please do not use our Services. If you still have any questions or concerns, please contact us at support@kakera.app.

Summary of Key Points

This summary provides key points from our privacy notice, but you can find out more details about any of these topics by using our table of contents below to find the section you are looking for.

What personal information do we process? When you visit, use, or navigate our Services, we may process personal information depending on how you interact with us and the Services, the choices you make, and the products and features you use.

Do we process any sensitive personal information? We do not process sensitive personal information.

Do we collect any information from third parties? We do not collect any information from third parties.

How do we process your information? We process your information to provide, improve, and administer our Services, communicate with you, for security and fraud prevention, and to comply with law. We may also process your information for other purposes with your consent. We process your information only when we have a valid legal reason to do so.

In what situations and with which parties do we share personal information? We may share information in specific situations and with specific third parties.

How do we keep your information safe? We have organizational and technical processes and procedures in place to protect your personal information. However, no electronic transmission over the internet or information storage technology can be guaranteed to be 100% secure, so we cannot promise or guarantee that hackers, cybercriminals, or other unauthorized third parties will not be able to defeat our security and improperly collect, access, steal, or modify your information.

What are your rights? Depending on where you are located geographically, the applicable privacy law may mean you have certain rights regarding your personal information.

How do you exercise your rights? The easiest way to exercise your rights is by submitting a data subject access request, or by contacting us. We will consider and act upon any request in accordance with applicable data protection laws.

Table of Contents

1. What Information Do We Collect?
2. How Do We Process Your Information?
3. What Legal Bases Do We Rely On To Process Your Personal Information?
4. When And With Whom Do We Share Your Personal Information?
5. Do We Use Tracking Technologies?
6. Do We Offer Artificial Intelligence-Based Products?
7. How Long Do We Keep Your Information?
8. How Do We Keep Your Information Safe?
9. Do We Collect Information From Minors?
10. What Are Your Privacy Rights?
11. Controls For Do-Not-Track Features
12. Do United States Residents Have Specific Privacy Rights?
13. Do Other Regions Have Specific Privacy Rights?
14. Do We Make Updates To This Notice?
15. How Can You Contact Us About This Notice?
16. How Can You Review, Update, Or Delete The Data We Collect From You?

1. What Information Do We Collect?

Personal information you disclose to us

In Short: We collect personal information that you provide to us.

We collect personal information that you voluntarily provide to us when you register on the Services, express an interest in obtaining information about us or our products and Services, when you participate in activities on the Services, or otherwise when you contact us.

Personal Information Provided by You. The personal information that we collect depends on the context of your interactions with us and the Services, the choices you make, and the products and features you use. The personal information we collect may include the following:

• email addresses
• audio recordings (when you use voice/transcription features)

Sensitive Information. We do not process sensitive information.

Payment Data. We may collect data necessary to process your payment if you choose to make purchases, such as your payment instrument number, and the security code associated with your payment instrument. All payment data is handled and stored by Stripe, Apple and Google. You may find their privacy notice link(s) here: https://stripe.com/privacy.

Application Data. If you use our application(s), we also may collect the following information if you choose to provide us with access or permission:

• Mobile Device Access. We may request access or permission to certain features from your mobile device, including your mobile device's microphone for voice recording and transcription features. Audio is processed to provide transcription services and is handled in accordance with our AI data processing practices described in Section 6. If you wish to change our access or permissions, you may do so in your device's settings.
• Mobile Device Data. We automatically collect device information (such as your mobile device ID, model, and manufacturer), operating system, version information and system configuration information, device and application identification numbers, browser type and version, hardware model Internet service provider and/or mobile carrier, and Internet Protocol (IP) address (or proxy server). If you are using our application(s), we may also collect information about the phone network associated with your mobile device, your mobile device's operating system or platform, the type of mobile device you use, your mobile device's unique device ID, and information about the features of our application(s) you accessed.
• Push Notifications. We may request to send you push notifications regarding your account or certain features of the application(s). If you wish to opt out from receiving these types of communications, you may turn them off in your device's settings.

This information is primarily needed to maintain the security and operation of our application(s), for troubleshooting, and for our internal analytics and reporting purposes.

All personal information that you provide to us must be true, complete, and accurate, and you must notify us of any changes to such personal information.

Information automatically collected

In Short: Some information — such as your Internet Protocol (IP) address and/or browser and device characteristics — is collected automatically when you visit our Services.

We automatically collect certain information when you visit, use, or navigate the Services. This information does not reveal your specific identity (like your name or contact information) but may include device and usage information, such as your IP address, browser and device characteristics, operating system, language preferences, referring URLs, device name, country, location, information about how and when you use our Services, and other technical information. This information is primarily needed to maintain the security and operation of our Services, and for our internal analytics and reporting purposes.

The information we collect includes:

• Log and Usage Data. Log and usage data is service-related, diagnostic, usage, and performance information our servers automatically collect when you access or use our Services and which we record in log files. Depending on how you interact with us, this log data may include your IP address, device information, browser type, and settings and information about your activity in the Services (such as the date/time stamps associated with your usage, pages and files viewed, searches, and other actions you take such as which features you use), device event information (such as system activity, error reports (sometimes called "crash dumps"), and hardware settings).
• Device Data. We collect device data such as information about your computer, phone, tablet, or other device you use to access the Services. Depending on the device used, this device data may include information such as your IP address (or proxy server), device and application identification numbers, location, browser type, hardware model, Internet service provider and/or mobile carrier, operating system, and system configuration information.

Google API

Our use of information received from Google APIs will adhere to Google API Services User Data Policy, including the Limited Use requirements.

2. How Do We Process Your Information?

In Short: We process your information to provide, improve, and administer our Services, communicate with you, for security and fraud prevention, and to comply with law. We may also process your information for other purposes with your consent.

We process your personal information for a variety of reasons, depending on how you interact with our Services, including:

• To facilitate account creation and authentication and otherwise manage user accounts. We may process your information so you can create and log in to your account, as well as keep your account in working order.
• To deliver and facilitate delivery of services to the user. We may process your information to provide you with the requested service.
• To respond to user inquiries/offer support to users. We may process your information to respond to your inquiries and solve any potential issues you might have with the requested service.
• To send you marketing and promotional communications. We may process the personal information you send to us for our marketing purposes, if this is in accordance with your marketing preferences. You can opt out of our marketing emails at any time. For more information, see "What Are Your Privacy Rights?" below.
• To save or protect an individual's vital interest. We may process your information when necessary to save or protect an individual's vital interest, such as to prevent harm.
• To ensure seamless access to your data across devices. We may process your email address when we believe it is necessary to provide seamless access to your data, even after reinstalling the app or when using other devices. This information is collected through authorization with Apple or Google sign-in, or via email magic link during registration.

3. What Legal Bases Do We Rely On To Process Your Information?

In Short: We only process your personal information when we believe it is necessary and we have a valid legal reason (i.e., legal basis) to do so under applicable law, like with your consent, to comply with laws, to provide you with services to enter into or fulfill our contractual obligations, to protect your rights, or to fulfill our legitimate business interests.

If you are located in the EU or UK, this section applies to you.

The General Data Protection Regulation (GDPR) and UK GDPR require us to explain the valid legal bases we rely on in order to process your personal information. As such, we may rely on the following legal bases to process your personal information:

• Consent. We may process your information if you have given us permission (i.e., consent) to use your personal information for a specific purpose. You can withdraw your consent at any time.
• Performance of a Contract. We may process your personal information when we believe it is necessary to fulfill our contractual obligations to you, including providing our Services or at your request prior to entering into a contract with you.
• Legitimate Interests. We may process your information when we believe it is reasonably necessary to achieve our legitimate business interests and those interests do not outweigh your interests and fundamental rights and freedoms. For example, we may process your personal information for some of the purposes described in order to:
  • Send users information about special offers and discounts on our products and services
  • Maintain continuous access and user convenience
• Legal Obligations. We may process your information where we believe it is necessary for compliance with our legal obligations, such as to cooperate with a law enforcement body or regulatory agency, exercise or defend our legal rights, or disclose your information as evidence in litigation in which we are involved.
• Vital Interests. We may process your information where we believe it is necessary to protect your vital interests or the vital interests of a third party, such as situations involving potential threats to the safety of any person.

If you are located in Canada, this section applies to you.

We may process your information if you have given us specific permission (i.e., express consent) to use your personal information for a specific purpose, or in situations where your permission can be inferred (i.e., implied consent). You can withdraw your consent at any time.

In some exceptional cases, we may be legally permitted under applicable law to process your information without your consent, including, for example:

• If collection is clearly in the interests of an individual and consent cannot be obtained in a timely way
• For investigations and fraud detection and prevention
• For business transactions provided certain conditions are met
• If it is contained in a witness statement and the collection is necessary to assess, process, or settle an insurance claim
• For identifying injured, ill, or deceased persons and communicating with next of kin
• If we have reasonable grounds to believe an individual has been, is, or may be victim of financial abuse
• If it is reasonable to expect collection and use with consent would compromise the availability or the accuracy of the information and the collection is reasonable for purposes related to investigating a breach of an agreement or a contravention of the laws of Canada or a province
• If disclosure is required to comply with a subpoena, warrant, court order, or rules of the court relating to the production of records
• If it was produced by an individual in the course of their employment, business, or profession and the collection is consistent with the purposes for which the information was produced
• If the collection is solely for journalistic, artistic, or literary purposes
• If the information is publicly available and is specified by the regulations

4. When And With Whom Do We Share Your Personal Information?

In Short: We may share information in specific situations described in this section and/or with the following third parties.

Vendors, Consultants, and Other Third-Party Service Providers. We may share your data with third-party vendors, service providers, contractors, or agents ("third parties") who perform services for us or on our behalf and require access to such information to do that work. We have contracts in place with our third parties, which are designed to help safeguard your personal information. This means that they cannot do anything with your personal information unless we have instructed them to do it. They will also not share your personal information with any organization apart from us. They also commit to protect the data they hold on our behalf and to retain it for the period we instruct.

The third parties we may share personal information with are as follows:

• AI Service Providers - OpenAI
• Cloud Computing Services - Google Cloud Platform
• Error Tracking - Google Crashlytics
• User Account Registration and Authentication - Firebase Authentication
• Mobile Analytics - Google Analytics for Firebase

We also may need to share your personal information in the following situations:

• Business Transfers. We may share or transfer your information in connection with, or during negotiations of, any merger, sale of company assets, financing, or acquisition of all or a portion of our business to another company.

5. Do We Use Tracking Technologies?

In Short: We use mobile analytics and error tracking to improve our app.

We use mobile analytics and error tracking tools to gather information when you use our app. These technologies help us maintain the security of our Services, prevent crashes, fix bugs, and improve the app experience.

Mobile Analytics

We use Google Analytics for Firebase to track and analyze the use of the Services, and Google Crashlytics for error tracking. For more information on the privacy practices of Google, please visit the Google Privacy & Terms page. You can limit analytics data collection through your device's privacy settings.

6. Do We Offer Artificial Intelligence-Based Products?

In Short: We offer products, features, or tools powered by artificial intelligence, machine learning, or similar technologies.

As part of our Services, we offer products, features, or tools powered by artificial intelligence, machine learning, or similar technologies (collectively, "AI Products"). These tools are designed to enhance your experience and provide you with innovative solutions. The terms in this privacy notice govern your use of the AI Products within our Services.

Use of AI Technologies

We provide the AI Products through third-party service providers ("AI Service Providers"), including OpenAI. As outlined in this privacy notice, your input, output, and personal information will be shared with and processed by these AI Service Providers to enable your use of our AI Products for purposes outlined in "What Legal Bases Do We Rely On To Process Your Personal Information?" You must not use the AI Products in any way that violates the terms or policies of any AI Service Provider.

Our AI Products

Our AI Products are designed for the following functions:

• Text analysis
• Text rewriting

How We Process Your Data Using AI

All personal information processed using our AI Products is handled in line with our privacy notice and our agreement with third parties. This ensures high security and safeguards your personal information throughout the process, giving you peace of mind about your data's safety.

AI Training: Your inputs and outputs are not used to train or improve third-party AI models. When we send your data to AI Service Providers like OpenAI, it is processed solely to provide you with the requested service. We use API configurations that opt out of training data usage where available.

AI Accuracy: AI-generated outputs, including transcriptions and text analysis, may contain errors or inaccuracies. You should review all AI-generated content before relying on it. We do not guarantee the accuracy, completeness, or reliability of any AI-generated output.

7. How Long Do We Keep Your Information?

In Short: We keep your information for as long as necessary to fulfill the purposes outlined in this privacy notice unless otherwise required by law.

We will only keep your personal information for as long as it is necessary for the purposes set out in this privacy notice, unless a longer retention period is required or permitted by law (such as tax, accounting, or other legal requirements).

Specific retention periods:

• Account data: Retained while your account is active
• After account deletion: Personal data is deleted within 90 days, except as required for legal compliance
• Transaction records: Retained for 7 years for tax and legal purposes
• Anonymized analytics: May be retained indefinitely (cannot identify you)

When we have no ongoing legitimate business need to process your personal information, we will either delete or anonymize such information, or, if this is not possible (for example, because your personal information has been stored in backup archives), then we will securely store your personal information and isolate it from any further processing until deletion is possible.

8. How Do We Keep Your Information Safe?

In Short: We aim to protect your personal information through a system of organizational and technical security measures.

We have implemented appropriate and reasonable technical and organizational security measures designed to protect the security of any personal information we process. However, despite our safeguards and efforts to secure your information, no electronic transmission over the Internet or information storage technology can be guaranteed to be 100% secure, so we cannot promise or guarantee that hackers, cybercriminals, or other unauthorized third parties will not be able to defeat our security and improperly collect, access, steal, or modify your information. Although we will do our best to protect your personal information, transmission of personal information to and from our Services is at your own risk. You should only access the Services within a secure environment.

Data Breach Notification: In the event of a data breach that affects your personal information, we will notify you and any applicable regulatory authorities as required by law. We will inform you of the nature of the breach and the steps we are taking to address it.

9. Do We Collect Information From Minors?

In Short: We do not knowingly collect data from or market to children under 18 years of age.

We do not knowingly collect, solicit data from, or market to children under 18 years of age, nor do we knowingly sell such personal information. By using the Services, you represent that you are at least 18 or that you are the parent or guardian of such a minor and consent to such minor dependent's use of the Services. If we learn that personal information from users less than 18 years of age has been collected, we will deactivate the account and take reasonable measures to promptly delete such data from our records. If you become aware of any data we may have collected from children under age 18, please contact us at support@kakera.app.

10. What Are Your Privacy Rights?

In Short: Depending on your state of residence in the US or in some regions, such as the European Economic Area (EEA), United Kingdom (UK), Switzerland, and Canada, you have rights that allow you greater access to and control over your personal information. You may review, change, or terminate your account at any time, depending on your country, province, or state of residence.

In some regions (like the EEA, UK, Switzerland, and Canada), you have certain rights under applicable data protection laws. These may include the right (i) to request access and obtain a copy of your personal information, (ii) to request rectification or erasure; (iii) to restrict the processing of your personal information; (iv) if applicable, to data portability; and (v) not to be subject to automated decision-making. In certain circumstances, you may also have the right to object to the processing of your personal information. You can make such a request by contacting us by using the contact details provided in the section "How Can You Contact Us About This Notice?" below.

We will consider and act upon any request in accordance with applicable data protection laws. We aim to respond to all legitimate requests within 30 days. Occasionally, it may take us longer if your request is particularly complex or you have made multiple requests, in which case we will notify you and keep you updated.

If you are located in the EEA or UK and you believe we are unlawfully processing your personal information, you also have the right to complain to your Member State data protection authority or UK data protection authority.

If you are located in Switzerland, you may contact the Federal Data Protection and Information Commissioner.

Withdrawing your consent: If we are relying on your consent to process your personal information, which may be express and/or implied consent depending on the applicable law, you have the right to withdraw your consent at any time. You can withdraw your consent at any time by contacting us by using the contact details provided in the section "How Can You Contact Us About This Notice?" below.

However, please note that this will not affect the lawfulness of the processing before its withdrawal nor, when applicable law allows, will it affect the processing of your personal information conducted in reliance on lawful processing grounds other than consent.

Opting out of marketing and promotional communications: You can unsubscribe from our marketing and promotional communications at any time by clicking on the unsubscribe link in the emails that we send, replying "STOP" or "UNSUBSCRIBE" to the SMS messages that we send, or by contacting us using the details provided in the section "How Can You Contact Us About This Notice?" below. You will then be removed from the marketing lists. However, we may still communicate with you — for example, to send you service-related messages that are necessary for the administration and use of your account, to respond to service requests, or for other non-marketing purposes.

Account Information

If you would at any time like to review or change the information in your account or terminate your account, you can:

• Contact us using the contact information provided.

Upon your request to terminate your account, we will deactivate or delete your account and information from our active databases. However, we may retain some information in our files to prevent fraud, troubleshoot problems, assist with any investigations, enforce our legal terms and/or comply with applicable legal requirements.

If you have questions or comments about your privacy rights, you may email us at support@kakera.app.

11. Controls For Do-Not-Track Features

Some mobile operating systems include privacy settings that allow you to limit ad tracking or analytics collection. We respect these device-level settings where technically feasible. You can adjust your privacy preferences in your device's settings under Privacy or Advertising options.

12. Do United States Residents Have Specific Privacy Rights?

In Short: If you are a resident of California, Colorado, Connecticut, Delaware, Florida, Indiana, Iowa, Kentucky, Montana, New Hampshire, New Jersey, Oregon, Tennessee, Texas, Utah, or Virginia, you may have the right to request access to and receive details about the personal information we maintain about you and how we have processed it, correct inaccuracies, get a copy of, or delete your personal information. You may also have the right to withdraw your consent to our processing of your personal information. These rights may be limited in some circumstances by applicable law. More information is provided below.

Do We Sell or Share Personal Information?

We do not sell your personal information. We do not share your personal information for cross-context behavioral advertising. We only share personal information with third-party service providers as necessary to provide our Services, as described in Section 4 of this privacy notice.

Categories of Personal Information We Collect

We have collected the following categories of personal information in the past twelve (12) months:

• Identifiers: Email address, unique device identifiers, IP address, and account name. (Collected: YES)
• Personal information under California Customer Records statute: Name and contact information. (Collected: YES, limited to email)
• Protected classification characteristics: Age. (Collected: NO)
• Commercial information: Transaction information and purchase history. (Collected: YES)
• Biometric information: Fingerprints, voiceprints. (Collected: NO)
• Internet or network activity: Browsing history, search history, interaction with our Services. (Collected: YES)
• Geolocation data: Device location. (Collected: NO, only general region via IP)
• Audio, electronic, visual, or similar information: Audio recordings if you use voice features. (Collected: YES, for transcription only)
• Professional or employment information: Job title, employer. (Collected: NO)
• Education information: Student records. (Collected: NO)
• Inferences: Preferences, characteristics, behavior. (Collected: YES, for service improvement)
• Sensitive personal information: (Collected: NO)

13. Do Other Regions Have Specific Privacy Rights?

Japan: We comply with the Act on the Protection of Personal Information (APPI). Japanese residents have the right to request disclosure, correction, deletion, or cessation of use of their personal information. To exercise these rights, please contact us at support@kakera.app.

European Economic Area, United Kingdom, and Switzerland: Our Services are operated from Japan and are not specifically directed at users in the EEA, UK, or Switzerland. If you are located in these regions and choose to use our Services, you do so at your own initiative. We do not have an EU representative appointed under GDPR Article 27. For privacy inquiries, please contact us at support@kakera.app.

For users in other regions, please refer to the sections above regarding your specific regional privacy rights based on your location.

14. Do We Make Updates To This Notice?

In Short: Yes, we will update this notice as necessary to stay compliant with relevant laws.

We may update this privacy notice from time to time. The updated version will be indicated by an updated "Revised" date at the top of this privacy notice. If we make material changes to this privacy notice, we may notify you either by prominently posting a notice of such changes or by directly sending you a notification. We encourage you to review this privacy notice frequently to be informed of how we are protecting your information.

15. How Can You Contact Us About This Notice?

If you have questions or comments about this notice, you may email us at support@kakera.app.

Our registered address is:
Kakera
〒150-0043
東京都渋谷区道玄坂1丁目10番8号
渋谷道玄坂東急ビル2F-C
Japan

16. How Can You Review, Update, Or Delete The Data We Collect From You?

Based on the applicable laws of your country or state of residence in the US, you may have the right to request access to the personal information we collect from you, details about how we have processed it, correct inaccuracies, or delete your personal information. You may also have the right to withdraw your consent to our processing of your personal information. These rights may be limited in some circumstances by applicable law. To request to review, update, or delete your personal information, please contact us at support@kakera.app.