Privacy Policy

Realbind Inc. ("we", "us") sets out below how information about users is handled in the application "Kimocchi" (the "App"). This English text is provided for your convenience; where it differs from the Japanese original, the Japanese text governs.

The App reads the feelings in what you say or write, and keeps a record of them. What you entrust to us is used to read those feelings, and so that you can look back on them later. It is never used to target advertising, or for analysis that would identify you.

01Information we collect

The App collects the following.

(1) Information you entrust to the App

Recorded audio (stored only on your device, and never sent to our servers)
The transcript of that audio, and any text you type in directly. Only this text is sent, by way of our server, in order to read your feelings
The feelings read from the above (the mix of six feelings, the mood score, the headline and the comment)

(2) Information collected as you use the App

The date, time and number of measurements
Device model, OS version and App version
In-app settings, such as the character you chose and your notification preferences
A record of which screens were opened and which actions were taken (which path you followed, and whether it succeeded). Your voice, transcripts and the feelings we read are never included here.
Records of the App failing to work correctly (what went wrong, and the state of the device at that moment)
Performance information, such as how long screens and network calls took
An anonymous ID the App assigns automatically to each device (not linked to your name or email address; used to limit our reading endpoint to requests from the genuine App, and for the analysis described above)

(3) Plan and invitation information

Subscription status and renewal date (obtained through the App Store, Google Play and a subscription management service. We never receive payment details such as credit card numbers.)
Invite codes, and points granted through invitations

(4) Information you give us when you get in touch

Your email address, the content of your enquiry, and any device or situation details you describe

02Where your records are stored

What you record is stored on your device. We do not store your recorded audio, your transcripts or the feelings read from them on any server we operate.

To read your feelings we send the transcript, or the text you typed, by way of our server — but it is discarded once the reading is done, and never stored.

What we do hold on our servers is limited to what is needed to run invitations and points: your invite code, the points granted through invitations, and the character you chose. Those servers run on Google Cloud Platform / Firebase, provided by Google LLC. We apply protective measures including encryption in transit and at rest.

Because your records live on the device, they are not carried over if you delete the App or change phones. Use the App's export feature (PDF / CSV) to keep anything you want to hold on to.

If you turn off "Keep transcripts" in Settings, the text itself is not stored on the device either — only the mix of feelings is recorded.

03How we use it

We use the information collected only for the following purposes.

To read feelings from your voice or text and show you the result
To store your records so you can look back on them in the calendar and daily screens
To write text based on those records, such as "For you, on this day"
To maintain and improve the quality of the App, and to investigate faults
To manage subscriptions and invitation points
To prevent misuse and keep the App safe to provide
To reply to your enquiries

We never use your audio or text to deliver or target advertising. We may use it, after processing it statistically into a form that cannot identify an individual, to improve the App.

04Reading feelings, and our use of generative AI

Reading your feelings and writing the replies is done with the Gemini models offered on Google Cloud's Vertex AI. To do so, we send the text you entered (for audio, the transcript made on your device) by way of our server. It is sent without anything that directly identifies you, such as your name or email address.

Your voice itself is never sent. Turning speech into text happens entirely on your device.

On Vertex AI, data you send is never used to train Google's generative AI models.

Before the first reading, the App shows you what this involves and asks for your consent. If you decline, or if you turn off "Read with AI" in the App's settings, no text leaves your device and reading falls back to a rough, on-device method.

05Sharing with third parties and external services

Except where required by law, we do not provide personal information to third parties without your prior consent.

We use the following external services to provide the App, and entrust the handling of information to them to that extent.

Google LLC: Reading feelings (Gemini on Vertex AI), running our server and holding invitations and points (Google Cloud Platform / Firebase), identifying devices and preventing misuse (Firebase Authentication anonymous sign-in / Firebase App Check), usage analytics, crash reporting and performance measurement (Firebase Analytics / Firebase Crashlytics / Firebase Performance Monitoring), and hosting of this site (Firebase Hosting)
RevenueCat, Inc.: Managing subscription status
Apple Inc. / Google LLC: Processing payments through the App Store and Google Play

Some of these services may store information outside Japan. We supervise our processors as necessary and appropriate.

06Retention and deletion

Records kept on your device are lost with the device when you delete the App. Because we do not hold them, we cannot restore them for you.

The invitation and points information held on our servers is kept for as long as you use the App. If you ask us to delete it, we will erase it within a reasonable period, except where the law requires us to keep it — please get in touch.

07Access, correction and suspension of use

If you ask us to disclose, correct, add to, delete, suspend the use of, or stop the third-party provision of your personal information, we will confirm your identity and respond promptly in accordance with the law. Please send such requests to our contact address.

08Security measures

To prevent the leakage, loss or damage of the information we collect, we encrypt it in transit and at rest, restrict access rights, and limit who may handle it.

09Use by children

If you are a minor, please use the App with the consent of a parent or guardian. We do not collect information from children under 13 without the consent of a parent or guardian.

10A note on health and medicine

The App is not a medical device, and is not intended to diagnose, treat or prevent illness. The feelings and scores it reads are not medical assessments. If poor physical or mental health continues, please consult a medical professional.

The App does not integrate with HealthKit or Health Connect, and does not obtain health information from them.

11About this website

This site is served by Firebase Hosting, and the serving infrastructure may retain records such as access times and IP addresses. These are used to understand delivery status and to respond to faults. This site does not use cookies for advertising purposes.

12Changes to this policy

We may change this policy in line with changes to the law or improvements to the App. When we make significant changes, we will announce them in the App or on this site.

13Company details and contact

Company: Realbind Inc.
Address: 1F, 3-8-11 Soshigaya, Setagaya-ku, Tokyo, Japan
Representative: Keisuke Fukuda, Representative Director
Website: https://realbind.jp
Privacy contact: modeldd8dd2dd2@icloud.com

Effective 13 August 2026 / Last updated 13 August 2026