Privacy Policy

Manna — Daily Devotion

Operator: Ibaraki YMCA (Makito Nakano)

Contact: nakano.makito@ibarakiymca.org

Last updated: October 6, 2026

This is an English translation of the Japanese policy. If the two differ, the Japanese version prevails.

1. Information we collect

The Manna app collects the following information.

Information	When	Purpose
Email address	When you create an account	Authentication and sign-in
User ID (@ID)	Chosen by you at registration	Profile display
Display name (optional)	Any time after registration	Greetings and identification
Favorites and list data	While using the app	Managing devotions
Device information (OS, model)	Automatically (via Firebase)	Troubleshooting and improvement

Passwords are processed in encrypted form and are never visible to the operator.

2. How we use information

We use the information we collect only for the following purposes.

Account authentication and sign-in

Providing app features (showing devotions, saving lists, and so on)

Improving app quality and fixing bugs

Sending you notifications (only if you turn them on)

We never use the information for advertising or sell it to third parties.

3. Sharing with third parties

The following services process data for us. They are infrastructure the app needs in order to work.

Service	Purpose	Privacy policy
Google Firebase Authentication	Sign-in	firebase.google.com
Google Firestore	Storing user data	firebase.google.com
Sign in with Apple	Signing in with your Apple Account	apple.com
GitHub Pages	Delivering each day's devotion to the app. GitHub may record the IP address of the request; no account information is sent.	github.com

Except where disclosure is required by law, we do not provide information to third parties.

4. Storage and retention

User data is stored on Google (Firebase) servers

When you delete your account, your sign-in information and your profile data in Firestore are deleted immediately

Local data such as favorites and lists is stored on your device in UserDefaults (it can be deleted from within the app when you delete your account)

5. Your rights

You have the following rights.

Access: You can review your registered information in the app's Settings

Correction: You can change your display name, email address and password in the app

Deletion: You can delete everything from Settings → Account → Delete account

Inquiries: Please contact us at the address below

6. Children's privacy

This app is not directed to children under 13. If we learn that we hold personal information from a child under 13, we will delete it promptly.

7. Push notifications

The morning devotion reminder is optional. You can turn it off at any time in Settings → Notifications, and you can also revoke permission in your device settings.

8. Changes to this policy

If we revise this policy, we will announce it in advance in the app or in the GitHub repository. For significant changes we will also notify you by email.

9. Contact

For privacy questions or deletion requests, please contact:

Ibaraki YMCA

Contact person: Makito Nakano

Email: nakano.makito@ibarakiymca.org

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