Privacy Policy

Last updated: 2026-05-18

This Privacy Policy describes what information Vow ("we", "us") collects when you use the Vow iOS application, why we collect it, and your rights over it. Vow is operated by Hassan Hajarat, a sole developer based in Amman, Jordan.

Short version: Vow is built around a single privacy principle — we don't know which apps you block, and we don't track how you use your phone. Apple's Screen Time framework hands us an opaque, encrypted reference to your selection; the actual list never leaves your device.

Information we collect

From Sign in with Apple

When you create your account, Apple sends us:

A stable user identifier (Apple's "sub") that lets us recognize you on this and future installs.
Your email address — either your real address, or, if you choose, the Apple private relay address that forwards to you.
Your name, only if you choose to share it on first sign-in.

From your use of the app

Your active vow: the start time, end time, current state ("active", "completed", "expired"), and an opaque Family Controls selection blob produced by Apple's Screen Time framework. This blob references the apps and categories you chose, but it is not human-readable and cannot be decoded by us. It only resolves to specific apps when running on your device under your Apple ID.
Your account–device pairing: the Apple ID identifier described above is also written to your iCloud Keychain so that reinstalling Vow on the same Apple ID resumes the active vow without re-authentication.

From subscriptions

Your subscription state (active or lapsed), product ID (monthly or yearly), and an anonymous purchaser identifier are processed by RevenueCat on our behalf. Apple processes the payment itself; we never see card numbers, billing addresses, or transaction details.

What we do not collect

The specific apps or categories you have blocked. We see only Apple's opaque token.
Screen time, app usage, browsing history, or any behavioural analytics.
Location, contacts, photos, microphone, camera, calendars, health data, or any other system data.
No third-party analytics or advertising SDKs are integrated.

Why we collect each piece

Data	Purpose
Apple identifier and email	Account identity; recovery on reinstall
Vow record (timestamps + opaque blob)	The "unbreakable" promise: vows persist server-side so reinstalling, switching phones, or signing out does not end an active vow
Subscription state	Gating access to paid features

Where your data is stored

Amazon Web Services (AWS) hosts our backend. Vow records and account identifiers are stored in Amazon DynamoDB, and our API runs on AWS Lambda. All data is hosted in the AWS us-east-1 region (US East — N. Virginia, USA).
Apple iCloud Keychain holds a copy of your active vow on your devices. This data syncs through Apple's infrastructure and is not accessible to us.
RevenueCat holds your subscription receipt and an anonymous identifier.
Apple handles the App Store purchase, Sign in with Apple, and Family Controls authorization. Their handling of that data is covered by Apple's own privacy policy.

Sharing

We do not sell your information. We do not share it with advertisers or analytics partners. The only third parties that receive any data are the infrastructure providers listed above (AWS, RevenueCat, Apple), and only to perform the functions we use them for.

Retention

Active vow record: kept while the vow is active, and for up to 30 days after it ends, to support cross-device recovery.
Account identifier and email: kept while your account exists.
Subscription state: kept while your subscription is active, plus the period Apple and RevenueCat require for receipt validation.

Your rights

You can:

Delete your account and data at any time by emailing support@makevow.app. We will erase your account record and any associated vow data within 30 days, except where retention is required by law.
Cancel your subscription at any time through Settings › Apple ID › Subscriptions on your device. Cancellation does not delete your account.
Revoke Sign in with Apple via Settings › Apple ID › Sign in with Apple. This will sign you out of Vow on this device.

Important: Deleting your account does not end an active vow on your device. The Screen Time restriction lives in iOS itself and can only be removed when the vow's scheduled end time is reached, or by revoking Vow's Family Controls authorization in iOS Settings.

Children

Vow is intended for adults working on their own digital habits and is not directed at children under 13. We do not knowingly collect information from children under 13.

Changes to this policy

If we change this policy in a material way, we will notify you in-app before the change takes effect.

Contact

Vow — support@makevow.app

For data deletion requests, please use the same email and include the email address associated with your Apple ID.