Terms of Service

App: Byosoku Diary / Effective: September 22, 2026 / Last updated: September 22, 2026

These Terms of Service (the "Terms") set out the conditions for using Byosoku Diary (the "App"), provided by misoclub ("we", "us"). By using the App you agree to these Terms. When you first launch the App we ask you to accept these Terms and the Privacy Policy. If you do not agree, you may not use the App.

1. Accounts

The App uses an anonymous, random identifier for cloud backup and multi-device sync. No name or email address is required. You may optionally link a Google or Apple account for device migration and restoration. Data is handled as described in the Privacy Policy.

2. Pricing and in-app purchases

The App is free to use and displays ads. We offer a paid plan (in-app purchase) that removes banner ads, raises the cloud photo storage limit (from 100MB to 2GB) and the number of photos per entry (from 12 to 24), and unlocks premium home screen widgets. Purchases, payments and refunds are handled by the App Store (Apple) or Google Play (Google) under their own rules.

The paid plan is an auto-renewing subscription, available as a monthly (1 month) or yearly (1 year) plan. Confirming a purchase charges your store account. Unless cancelled at least 24 hours before the end of the current period, it renews automatically for the same period and price, and is charged on the renewal date. A free trial may be offered for a first subscription; unless cancelled at least 24 hours before it ends, it converts automatically to a paid subscription. Eligibility is determined by each store and shown at checkout.

You can cancel at any time in your store's subscription settings (iOS: Settings > Apple Account > Subscriptions / Android: Google Play Store > Payments and subscriptions > Subscriptions). Cancellation is not possible inside the App. After cancelling you keep access until the end of the period you have paid for, after which the App returns to the free state and ads reappear. Photos stored beyond the free limit are not deleted, but while you are over the limit no new photos are uploaded to the cloud (they remain on your device).

Entitlements are tied to your App account. Any device signed in to the same account, on iOS or Android, can use them. A single purchase cannot be used by several accounts at the same time; to move it, use "Restore purchases" in the App and confirm the transfer.

Subscribing on both Apple and Google Play for the same account does not increase your benefits. To avoid double billing, check which store you are subscribed through and cancel any unnecessary subscription at its store. If we cannot temporarily verify your purchase state, the App does not start a new purchase and keeps premium features available until verification completes.

3. Prohibited conduct

You must not:

4. Your content

You retain the rights to the diary text and photos you store in the App ("Your Content"). The App has no feature for sharing or publishing Your Content to other users. We handle Your Content only as needed to provide the App's functions, such as backup, sync and recovery from failures. We do not read or use Your Content for advertising or to train machine learning models.

You are responsible for Your Content. If we learn that content stored through the App violates the law, we may delete the data or suspend the account as necessary.

5. Storage and backup

We make reasonable efforts to preserve data stored in the cloud, but we do not guarantee that all data is always stored there, as this depends on connectivity, device state and storage limits. Please keep your own copy of anything important. Deleted data is handled as described in the Privacy Policy and cannot be restored from within the App.

6. Intellectual property

Intellectual property rights in the App and its materials (program, design, text, logo, and any sample images or writing included with it) belong to us or the rightful owners. You may not copy, modify or redistribute them without our permission.

7. Disclaimer

The App is provided "as is". We make no warranty that it is fit for any particular purpose, or as to accuracy, completeness, usefulness, availability, or freedom from errors or interruptions.

8. Limitation of liability

Except in cases of our willful misconduct or gross negligence, we are not liable for damages arising from use of, or inability to use, the App. Where applicable law does not permit a full exclusion, our liability is limited to the extent permitted by that law.

9. Changes, suspension and termination of the service

We may change, suspend or discontinue the App without prior notice, and are not liable for damages arising from doing so.

10. Suspension and deletion of accounts

If you breach these Terms, we may suspend your use of the App or delete your account and data. You may also end your use at any time with "Delete all data" in Settings.

11. Governing law and jurisdiction

These Terms and use of the App are governed by the laws of Japan. Any dispute relating to the App shall be subject to the exclusive jurisdiction of the court having jurisdiction over our location.

12. Changes to these Terms

We may revise these Terms as needed. Significant changes will be announced appropriately, such as on this page or by asking for your consent again in the App. Continuing to use the App after a change means you accept the revised Terms.

13. Contact

For questions about these Terms, please contact us: