Privacy Policy

App: きょうの体重 - ダイエットに便利な超シンプルな体重記録！ (Today's Weight) / Effective date: June 29, 2026 / Last updated: August 31, 2026

“きょうの体重 - ダイエットに便利な超シンプルな体重記録！ (Today's Weight)” (the “App”) is provided by misoclub (“we,” “us,” or “our”). We respect the privacy of our users and establish this Privacy Policy (this “Policy”) as follows.

1. Information We Collect and Where It Is Stored

If you do not sign in, all information you record in the App is stored only on your device and is never transmitted to or collected by our servers. Account registration and sign-in are optional; every feature of the App works without signing in.

Separately from the content you record, we collect aggregate usage information such as which screens are used, in order to improve the App (recorded values are not included). See “6-2. Usage Analytics” below.

The information stored on your device includes weight and body fat percentage; height and target weight; meal and exercise notes; short memos; and settings such as notifications and themes. Values such as BMI and averages are calculated on your device from the above data for display purposes and are not collected separately.

If you do not sign in, this data is erased when you delete the App. When switching devices, please use the App’s “Backup (export) / Restore (import)” function or the cloud sync described below (you are responsible for managing the exported file).

2. Cloud Sync (When You Sign In)

The App offers a “cloud sync” feature that backs up your records and carries them over to a new device or keeps several devices in sync. This feature operates only when you explicitly sign in with a Google or Apple account from the settings screen. No account and no data are created on our servers until you sign in.

The following information is stored in the cloud:

• Records: weight and body fat percentage, meal notes, exercise notes, and short memos (including their dates and created/updated timestamps)
• Some settings: height, target weight, goal direction (lose/gain), starting-weight baseline date, weight unit, and the trend line setting
• Account information: the email address and user identifier provided by Google or Apple when you sign in

The following are not stored in the cloud and remain on your device only: purchase status, the date you completed initial setup, the health integration on/off state, theme, color, background image, display language, and notification settings.

Cloud data is stored on Firebase (Google Cloud) servers provided by Google LLC, which we use as a processor on our behalf. Access is restricted so that data can only be read and written by the signed-in account that owns it. Data is encrypted in transit.

Signing out deletes neither the records on your device nor the data in the cloud; it simply stops syncing. For deletion, see “8. Deleting Your Account and Data.”

3. In-App Inquiries

The App's settings screen includes an “Contact us” form for reaching us directly. You can use it without signing in. Nothing is sent unless you fill in the form and tap Send.

When you send an inquiry, the following is sent to us.

• Category and message: what you select and write
• Reply email address (optional): only if you enter one. Used solely to reply to you
• Screenshots (optional, up to 3): only the ones you choose to attach. Because they are pictures of your screen, they may contain health information such as your weight or body fat percentage
• Environment details: app version, OS name and version, display language, and — if you are signed in — your user identifier (user ID)

We include the environment details so we can reproduce and investigate what you report. They are not used for advertising or analytics.

Inquiries are stored on Firebase (Google Cloud) servers provided by Google LLC, and we are also notified by email. Email delivery uses Resend (Resend Labs, Inc.). See “7. Provision to Third Parties” for details.

4. Integration with Health Apps

The App includes a feature to sync your weight and body fat percentage with your device’s health platform (Android: Health Connect / iOS: Apple Health). This integration operates only when you explicitly turn it on in the settings screen.

• When the integration is on, the App reads and writes (two-way sync) your weight and body fat percentage data with Health Connect / Apple Health on your device.
• If you are not signed in, this exchange of data is completed within your device (the OS health platform) and is not transmitted to or collected by our servers.
• If you are signed in to cloud sync, your weight and body fat percentage — including values imported from Apple Health or Health Connect — are stored on our servers (Firebase / Google Cloud) as described in “2. Cloud Sync.”
• You can turn the integration off at any time in the settings. You may also delete from within the App the data that the App wrote to Health Connect / Apple Health (we do not delete data written by other apps).

Health information is sensitive. We never use weight, body fat percentage, or any other health information for advertising or ad targeting, and we never sell or provide it to third parties (other than storing it with the processor described above when you use cloud sync).

5. Notifications

The App’s notifications (such as reminders to record your data) are local notifications generated on your device. We do not collect personal information for the purpose of notifications.

6. Advertising

The App uses Google AdMob, provided by Google, to deliver advertisements. For ad delivery and performance measurement, AdMob may obtain and use an advertising identifier (Advertising ID) and information about your device and usage. The handling of such information is subject to Google’s Privacy Policy.

• Google’s Privacy Policy: https://policies.google.com/privacy
• You can configure ad personalization and reset your advertising identifier from your device settings.

If ads are hidden within the App (where such a feature is offered), no ads will be displayed.

App Tracking Transparency (iOS)

On iOS, the App shows a tracking permission prompt (App Tracking Transparency) when you start using it. Only if you allow it do we use the advertising identifier (IDFA) to show more relevant ads. You can use every feature of the App exactly as before if you decline (the ads shown simply will not be based on your interests). You can change this at any time in your device settings under Privacy & Security → Tracking.

Consent for users in the EEA and the UK

If you use the App from the EEA or the UK, we show a consent form for advertising. You can change your choices at any time from the App’s Settings → Ads → “Ad privacy settings”.

6-2. Usage Analytics

To improve the App, we use Google Analytics for Firebase (Firebase Analytics), provided by Google LLC, to understand how the App is used in aggregate.

• What we collect: which screens are opened; the fact that an action such as saving a record, sharing, or exporting a backup occurred; estimated revenue when an ad is shown; and the App version, OS, language, approximate region, and device identifiers.
• What we do not collect: none of the content you record — weight, body fat percentage, height, target weight, BMI, meal and exercise notes, or short memos — is ever transmitted. We send only the fact that an action occurred, never the recorded values.
• No link to your account: even when you are signed in for cloud sync, we do not attach your user identifier to usage analytics.

You can stop this collection at any time by turning off Settings → Ads → “Help improve the app”. Every feature of the App remains available if you do.

The handling of this information is subject to Google’s Privacy Policy (https://policies.google.com/privacy).

7. Provision to Third Parties

We do not sell or provide the information you record to any third party. If you use cloud sync, we entrust storage to Google LLC (Firebase / Google Cloud) as a processor acting on our behalf; this does not permit them to use your data for their own purposes.

If you use the in-app inquiry form, we entrust email delivery to Resend Labs, Inc. (Resend) as a processor acting on our behalf. Your message, reply address and any attached screenshots therefore pass through their servers. This does not permit them to use your data for their own purposes.

The handling of advertising-related information is subject to the policy of Google AdMob (Google LLC) described above. No health information, and no content of your records, is ever shared with advertising providers.

8. Deleting Your Account and Data

If you are signed in to cloud sync, you can delete your account and your cloud data at any time.

• From within the App: Settings → “Cloud sync” → “Delete account.” This permanently deletes your account and the copy of your records stored in the cloud.
• If you have already uninstalled the App: see the Account Deletion page. We also accept deletion requests by email.

Deleting your account removes your records from the cloud. The records on your device are not deleted. Records on other devices also remain on those devices; syncing stops and the App continues to work as a device-only app there. To remove the records from a device, uninstall the App on that device.

If you delete the App without deleting your account, your cloud data remains and can be restored by signing in again with the same account. If you want it removed permanently, please request deletion as described above.

9. Permissions Used by the App

The App may use the following permissions to provide its features.

• Notifications: for record reminders (local notifications)
• Internet connection: for ad delivery, and for cloud sync when you are signed in
• Access to health data (weight and body fat percentage): for syncing when the health integration is turned on
• Photos: for attaching screenshots to an in-app inquiry. Attaching is your choice; if you do not attach anything, the App does not access your photos

10. Children’s Privacy

The App does not collect information targeted at any specific age group. If the App is used by a child, please use it under the supervision of a guardian.

11. Changes to This Policy

This Policy may be revised as necessary. If there are significant changes, we will announce them on this page. The revised content takes effect at the time it is posted on this page.

12. Contact

For inquiries about this Policy or the App, please contact us at the address below. You can also reach us from the App: Settings → “Contact us” (no sign-in required; see “3. In-App Inquiries”).

• Provider: misoclub
• Email: misoclubsupport@gmail.com