Last updated: October 2026
This Privacy Policy explains how HabitLens ("the app", "we", "us") collects, uses, and protects information when you use the app. HabitLens is a personal habit-tracking app that lets you log daily check-ins, optionally with a photo or video, and view your progress over time.
Account information. When you sign in with Google or Apple, we receive your name, email address, profile photo link (if your account has one) and a user ID through Firebase Authentication. We use these to identify your account and to show your name and photo in the app.
Habit data. The habits you create (names, descriptions, colours, dates and check-in history) are stored only on your device, in the app's own storage. They are not sent to our servers. If you export a backup, the file is saved wherever you choose, and only you have it.
Photos and videos. When you attach a photo or video to a check-in, from your gallery or your camera, the app saves a copy in its own private storage on your device. Recap videos are also made on your device, and saved to your gallery when you choose. We never upload these files to our servers.
Purchase information. If you subscribe to HabitLens Pro, your purchase is processed by Google Play Billing or the Apple App Store. We use RevenueCat to manage subscription status. RevenueCat receives your purchase details and your account's user ID, so your subscription works on any device you sign in on. We do not receive or store your payment card details.
Music. The music for recap videos is downloaded from our Firebase storage. No personal information is sent with these downloads.
Notifications. Daily habit reminders are scheduled locally on your device and do not involve sending your data to any push-notification server.
What we don't collect. HabitLens has no ads, does not use your advertising ID, and does not use analytics or tracking tools. It does not access your location or contacts.
We do not sell your personal information. We share data only with the service providers that help us run the app:
We keep your account information until you delete your account. You can delete it at any time in the app, from Settings → Profile → Delete Account, or by email by following the steps on our account deletion page. Deleting your account removes your name, email address, profile photo link and user ID from our servers.
Your habits, photos and videos are stored on your device, not on our servers. They are removed when you uninstall the app or clear its storage. Photos and recap videos you saved to your gallery are your own files, so they stay there. The account deletion page explains how purchase records are handled.
HabitLens is not directed at children under 13, and we do not knowingly collect personal information from children under 13.
All information the app sends is encrypted in transit (HTTPS). Account information is held by Google Firebase, and subscription records by RevenueCat.
We may update this policy from time to time. Changes will be posted on this page with an updated "Last updated" date.
If you have questions about this policy, contact us at admin@habitlens.info.