Privacy Policy

You can use Lean anonymously, with no account. If you create an account, you can sign in with Apple, Google, or a one-time code sent to your email. Your routines, logged workouts, sets and reps, body measurements and profile are stored in your account on our secure backend (Supabase) so they sync across your devices. Only you can access your data through your account; we do not sell it or share it for advertising.

With your permission, Lean writes your finished workouts to Apple Health (a strength-training Workout and its estimated active energy) so they count toward your Activity rings and awards. Lean does not read data from Apple Health, and it never uses Health data for advertising, marketing, or any purpose other than showing you your own workouts in Health. You can turn this off anytime in the iOS Settings, under Health.

Lean uses a few third-party services. None of them receive your Apple Health data:

• RevenueCat manages your subscription. It processes your App Store purchase information and an anonymous app-user identifier to unlock Lean Pro across your devices. See RevenueCat's Privacy Policy.
• Google Firebase Analytics gives us anonymous, aggregated usage statistics so we can improve the app. See Google's Privacy Policy.
• Sentry receives crash and error reports so we can fix bugs. Reports contain diagnostic technical data, not your Health data or workout content.
• Advertising attribution: with your permission (the App Tracking Transparency prompt), Lean shares an advertising identifier with attribution partners (for example TikTok and Apple Search Ads) only to measure whether an ad led to an install. If you do not allow tracking, this does not happen. We never share your Health data for this.

Lean Pro is an auto-renewable subscription processed by Apple. Payment is charged to your Apple ID and governed by Apple's terms. We never see or store your payment details. You can manage or cancel it anytime in your App Store account.

Lean can send notifications such as workout reminders and a rest-timer alert. You can turn them off in the iOS Settings.

You can delete your account and all of its data from inside the app, in Profile → delete account. You can also turn off analytics and tracking in your device settings, and cancel your subscription in your App Store account at any time. For any request, email us at apps.flipontech@gmail.com.

Lean is not directed at children under 13 and does not knowingly collect personal data from them.

If our data practices change, we will update this page and the “Last updated” date above.

Questions? Email apps.flipontech@gmail.com.