Privacy Policy
Your data stays
where it belongs.
Effective date: January 1, 2025 · Last updated: February 2026
1. What We Collect
Sentence collects minimal information to function:
- Onboarding selections — your chosen distractions, intentions, pain points, and screen time estimate. These are stored locally on your device and are never transmitted to our servers.
- Age input — used only to calculate a projection shown during onboarding. It is not stored or transmitted.
- Subscription status — managed by RevenueCat. We receive only whether your subscription is active, not any payment details. Your financial information is handled entirely by Apple and RevenueCat.
- Anonymous usage analytics — we use PostHog to collect anonymised, non-personal events (e.g. "onboarding screen viewed", "subscription purchased") to understand how the app is used and improve it. No personal identifiers are attached.
2. Screen Time & FamilyControls
Sentence uses Apple's Screen Time framework (FamilyControls, ManagedSettings, DeviceActivity) to enforce app blocks. This means:
- All Screen Time data — which apps are blocked, usage patterns — is processed entirely on your device by Apple's frameworks.
- We do not have access to which specific apps you use, your screen time duration, or any activity monitored by Screen Time.
- Sentence only reads which app categories you selected during onboarding in order to set up blocking groups.
3. What We Do Not Collect
- Browsing history
- App usage data or content
- Location data
- Contacts or camera data
- Any personally identifiable information beyond what you explicitly provide
4. Apple's Privacy Policy
Sentence is distributed exclusively through the Apple App Store. Apple's privacy practices and policies take precedence where applicable. By using Sentence, you also agree to Apple's Privacy Policy, which governs data collected by Apple in connection with the App Store, in-app purchases, and the iOS platform itself.
5. Third-Party Services
Sentence uses the following third-party services:
- RevenueCat — subscription management. See revenuecat.com/privacy
- PostHog — anonymised product analytics. See posthog.com/privacy
- Apple App Store — handles all payments. See apple.com/legal/privacy
5. Data Retention
Local data (your onboarding selections, app group configuration) is stored in your device's local storage and the app's shared App Group container. Deleting the app removes all locally stored data. RevenueCat and PostHog retain anonymised records per their own privacy policies.
6. Children's Privacy
Sentence is not directed at children under 13. We do not knowingly collect personal information from anyone under 13. If you believe a child has provided us with personal information, contact us and we will delete it promptly.
7. Changes to This Policy
We may update this Privacy Policy from time to time. We will notify you of significant changes by updating the effective date above. Continued use of the app after changes constitutes acceptance of the updated policy.