Privacy policy

Last updated November 12, 2026

Strong Tower Bible is a Bible app. Most of what you do in it stays on your phone. This page explains what we collect, why we need it, and what you can do about it.

What stays on your phone

Everything you do in the app is saved on your device: your reading and plans, saved and favorite verses, notes, prayers and thanks, fasts, journeys, milestones and settings. If you don't create an account, we never see any of it.

If you create an account

An account backs up your progress and lets you pray with others in a Watch. When you create one, we store:

• Your email address, so you can sign in.
• The name you choose, which greets you in the app and is shown to people in your Watch.
• Sign-in details from Apple, Google, Facebook or X, if you use one of them: your name and email as you allow, and an ID that links your account to theirs. We never see your password for those services.
• A backup of your progress: your reading and plans, saved and favorite verses, notes, prayers and thanks, fasts, journeys, milestones, the apps you chose for Scroll Swap and how often you chose Scripture, the name and contact of an accountability partner if you added one, and your settings.

Never backed up: your Strongholds and the Strongholds lock. They stay on your phone.

Your backup is private to your account. Nobody else can read it, including other people in your Watch.

Watches

If you join a Watch, its members can see your name and the stones you lay on the shared wall when you finish a day's reading. They can't see your prayers, notes or anything else in your backup.

Prayers, notes and your faith

What you write in prayers and notes can be personal, and can say something about your beliefs, health or relationships. Without an account it stays on your phone. With an account it's stored in your private backup, which only your account can read.

Bible studies

When you open Deeper Study or Explain Easier, the app sends the verse reference and its text to our study server, which uses Anthropic's Claude to write the study. We don't send your name, your account or anything you wrote. Studies are saved and reused for everyone who opens the same verse, so most of the time nothing is sent at all.

Bible text and audio

Bible text and the narrated audio are downloaded from the Free Use Bible API at bible.helloao.org. Like any website, it can see the IP address of the device asking for a chapter.

Accountability partner

If you add a partner, their name and contact are saved in the app. We never contact them. When you share your week, you send it yourself through your phone's share sheet.

Scroll Swap and digital fasts

On iPhone these use Apple's Screen Time, and on Android they use usage access. Which apps you open, and when, is handled on your phone. We don't receive a list of your apps or your screen time.

Reminders

Reminders are scheduled on your phone. We don't run a server that sends you notifications.

Strong Tower+ purchases

Purchases go through the App Store or Google Play. We never see your card or payment details. Our payments provider, RevenueCat, tells the app whether your subscription is active.

Sign-in emails

When you sign in with your email, we send you a one-time code from noreply@strongtowerbible.com. Those emails are sent through Resend.

Companies that help us run the app

We share only what each one needs to do its job, and none of them may use your data for their own advertising.

• Supabase: accounts, backups and Watches, stored in the United States.
• Cloudflare: this website and the study server.
• Anthropic: writes Bible studies. It receives verse text only.
• Resend: sends sign-in code emails.
• Apple and Google: app downloads, purchases, and sign-in if you choose it.
• Facebook (Meta) and X: sign-in, only if you choose it.
• RevenueCat: keeps track of whether a subscription is active.

How long we keep it

We keep your account and backup for as long as your account exists. When you delete your account, we remove it from our systems within 30 days. What's saved on your phone stays there until you delete the app.

Your choices

• Use the app without an account.
• Change your name or sign out at any time in the app.
• Delete your account and backup from inside the app. Here's how.
• Ask us for a copy of your data, to correct it, or to delete it, by emailing support@strongtowerbible.com.

Depending on where you live, laws such as the GDPR in Europe and the CCPA in California give you these rights. We honor them for everyone.

Children

Strong Tower Bible isn't meant for children under 13, and we don't knowingly collect their information. If you think a child has created an account, email us and we'll delete it.

Security

Everything is sent over encrypted connections. Backups are protected so that each account can only read its own. No system is perfect, but we work to keep your information safe and collect as little as we can.

Changes to this policy

If we change this policy, we'll update the date at the top. For bigger changes, we'll also tell you in the app.

Contact

Questions about your privacy: support@strongtowerbible.com