Privacy Policy
Last updated: October 17, 2026
This policy explains how kohagura maimu (“we”) handles information in Saymily (formerly Kotone), version 2.0 onward, and at saymily.com.
1. Information on your device
No app account is required. Affirmations, tags, recordings, added background photos, mood entries, notes, listening history and settings are primarily stored on your device. The app has no feature that uploads this content to our servers. We do not use voice recordings for identity recognition or voice cloning.
The microphone is used when you choose to record. Selected photos are stored and displayed as backgrounds; we do not collect your entire photo library. Reminders are scheduled locally. You can change permissions in iOS Settings. Declining a permission prevents the related feature from working, while other available features remain usable. Text-to-speech uses iOS speech synthesis. Apple’s policy applies to Apple services such as downloading additional voices.
2. Information processed externally
| Information | Purpose and recipients |
|---|---|
| Purchase identifiers, product IDs, transactions, purchase history, subscription and trial status, and technical app/device information | Apple and RevenueCat: payment, entitlement verification, restoration, fraud prevention and purchase management |
| An app-generated installation ID, screen and feature events, timestamps, sessions, listening durations, action counts, selected acquisition source and platform | Amplitude, in builds with analytics enabled: usage analysis and improvement. Providers may also process network information such as IP addresses |
| Email address, inquiry text and attachments you choose to send | Email services: support and troubleshooting |
| IP address, browser information, access times and similar technical data | Cloudflare: website delivery, security and operation |
Recordings, affirmation text, tag names, photos, note content and selected mood values are not sent to analytics. An event indicating that an entry was saved is different from its content. We do not receive payment card details. Data linked to an installation identifier is not necessarily fully anonymous.
The app does not include third-party advertising SDKs or track you across other companies’ apps and websites for advertising. This website does not install its own analytics tags or advertising cookies. Cloudflare may process technical information needed for delivery and security.
3. Providers and international processing
Information may be processed outside Japan, including in the United States, by providers or their service providers. We select services for the stated purposes and apply safeguards and procedures required by applicable law. Provider policies:
4. Grounds for processing and disclosure
We process information to perform our contract for app access and purchase verification; for legitimate interests in support, security and improvement where permitted; to comply with legal duties; and with consent where required. We do not disclose information beyond the stated purposes unless permitted by law or with required consent. We do not sell personal information or share it for cross-context behavioral advertising.
5. Retention and deletion
You can delete local content using the corresponding app controls. Uninstalling removes app-local data, but copies in Apple’s backups depend on your settings and Apple’s policies. Uninstalling does not erase purchase records or data held by external providers.
We retain externally processed information only as needed for service, support, security or legal requirements, and delete or de-identify it when no longer needed. Certain purchase records may need to be retained for legal or fraud-prevention reasons. We do not provide our own cloud backup or restore service for recordings or notes.
6. Your rights
Depending on applicable law, you may request information about processing, access, correction, deletion, restriction, objection, portability, withdrawal of consent, or cessation of use or disclosure. Withdrawing consent does not affect prior lawful processing. You may also complain to your relevant supervisory authority.
Contact [email protected]. We may request limited information to verify your identity or locate relevant records. Do not send passwords or card details. For data we cannot access because it exists only on your device, we will explain the available device-side controls.
7. Security and children
We use reasonable safeguards, including access restrictions, against unauthorized access and disclosure. The app is not designed as a service for children. Minors should obtain guardian consent where required by law. If inappropriate collection of children’s information is reported, we will investigate and respond.
8. Updates and contact
Material changes will be announced on the website or in the app, and consent obtained where required.
Controller: kohagura maimu. Contact: [email protected]. Requests for business address information can also be sent here.