Privacy Policy
Last updated: 2 November 2026
Draft. This policy hasn’t been reviewed yet and may change before Prosigo launches.
In short:
- Prosigo works without an account. Without one, your notes, bookmarks and reading progress stay on your phone.
- If you create an account to back up and sync, we store your email address and your synced data on servers in the United States.
- We don’t show ads, track you across apps or websites, or sell your data. We don’t analyse what you read or write.
- You can delete your account and its data from within the app at any time.
Who we are
Prosigo is made by 17logic, the one-person app studio of Cristian Mejia, based in Japan (“we”, “us”). For anything about your data, write to support@prosigo.app.
Data that stays on your phone
Your notes, bookmarks, reading progress, the days you’ve used the app, and your settings are stored on your iPhone. iOS protects them with its built-in file encryption. We can’t see them unless you turn on backup and sync.
If you create an account
An account is optional. You need one only for backup and sync between devices, which is part of Prosigo Pro.
| Data | Why we need it |
|---|---|
| Email address | To create your account, sign you in, and send verification and password-reset codes |
| Apple user ID (if you use Sign in with Apple) | To sign you in. If you choose “Hide My Email”, we only see Apple’s relay address |
| Notes, bookmarks, reading progress, days you used the app, settings | To back them up and keep them in sync between your devices |
| Subscription status | To know whether your account has Prosigo Pro |
We use this data only to provide these features. We don’t use it for advertising or profiling.
Your faith is private
Notes and reading activity in a Bible app can reveal your religious beliefs. We treat them as sensitive:
- We don’t run analytics on what you read or what you write.
- Crash reports never include your notes or Bible text.
- Only the developer can access the servers, and only to keep the service running or when you ask for help.
Subscriptions
Purchases are made through Apple. We never see your payment details. We use RevenueCat to check your subscription status. It receives an identifier for you (anonymous, or your account ID if you’re signed in) and your purchase history from Apple.
Crash reports
When the app crashes or hits an error, it sends a report to Sentry so we can fix the problem. A report contains technical details: the error, device model, iOS version, app version, and your account ID if you’re signed in. It never contains your notes or Bible text.
Service providers
| Provider | What it does | Data it processes |
|---|---|---|
| Amazon Web Services (USA) | Hosts our servers and database | Account data and synced data |
| Apple | App Store purchases, Sign in with Apple | Purchases, Apple sign-in |
| RevenueCat (USA) | Checks your subscription status | Identifier, purchase history |
| Sentry (USA) | Crash reports | Technical error details, account ID |
We don’t sell or share your data with anyone else, except where the law requires it.
Where your data is stored
Account and synced data is stored with Amazon Web Services in Oregon, USA. If you live outside the United States, your data is transferred there. It’s encrypted in transit (TLS) and at rest.
How long we keep it
- Account and synced data: until you delete your account. After deletion, copies can remain in encrypted backups for up to 35 days, then they’re gone.
- Server logs, which can contain your account ID: 90 days.
- Crash reports: as long as Sentry keeps them under our plan.
Deleting your account
In Prosigo, go to Settings → Backup & sync → Delete account. This deletes your account and everything stored with it on our servers, and removes your record at RevenueCat. You can choose to keep a copy of your notes on your phone. You can also ask us by email.
Deleting your account does not cancel your App Store subscription. Cancel it in your iPhone’s settings (Settings → [your name] → Subscriptions).
Your rights
Depending on where you live, you may have the right to access, correct, delete or receive a copy of your data, and to object to or limit how we use it. Write to support@prosigo.app and we’ll respond within 30 days. You can also complain to your local data protection authority.
Children
Prosigo isn’t directed at children under 13, and we don’t knowingly collect their personal data. If you believe a child has created an account, contact us and we’ll delete it.
This website
prosigo.app doesn’t use cookies, analytics or tracking, and doesn’t keep visitor logs.
Changes to this policy
If we change this policy, we’ll update the date at the top. If the changes are significant, we’ll tell you in the app before they take effect.