Legal
Privacy Policy
Last updated 26 July 2026
LFTD ("we", "us", "our") builds a lift-tracking and AI coaching app for iOS
and Android. This policy explains what data we collect, why we collect it,
and how you can control it — written in plain English rather than legal
jargon.
What we collect
- Account info — your email address, used to sign you in via Supabase Authentication.
- Workout data — the exercises, weights, reps, and sets you log.
- Bodyweight data — weigh-ins you choose to log.
- Goal preference — whether you've set your goal to "build muscle" or "lose fat".
- Subscription status — whether you're on a free trial or paid Pro plan, managed via RevenueCat.
How we use it
We use your data to:
- Show you your own logged lifts, charts, and bodyweight trends
- Power the AI Coach feature, which analyses your logged workout history to identify stalls and estimate progress — this analysis is sent securely to Anthropic's API to generate your coaching insights
- Manage your subscription and free trial status
- Send you optional push notifications, such as weekly weigh-in reminders or rest timer alerts
We do not sell your personal data to third parties, and we do not use your data to serve ads.
Who we share it with
- Supabase — our backend database and authentication provider. Your account and workout data is stored securely here with row-level security enabled, meaning only you can access your own data.
- Anthropic — when you use the AI Coach feature, a summary of your logged workout data is sent to Anthropic's API to generate personalised coaching feedback. This is used solely to generate your response and is not used to train Anthropic's models.
- RevenueCat — manages subscription and trial status. RevenueCat receives your purchase/subscription events but not your workout data.
- Apple & Google — if you subscribe via the App Store or Google Play, they process your payment; we never see your card details.
Data retention
We keep your data for as long as your account is active. If you delete your
account, your workout logs, weigh-ins, and profile information are permanently
deleted from our systems.
Your rights
You can at any time:
- Request a copy of the data we hold about you
- Request correction of inaccurate data
- Request deletion of your account and all associated data
To make any of these requests, email us at
hello@lftdapp.com and we'll action it
within 30 days.
Children's privacy
LFTD is not directed at children under 16, and we do not knowingly collect
data from children under this age.
Changes to this policy
If we make material changes to this policy, we'll update the "Last updated"
date at the top of this page. Continued use of LFTD after changes means you
accept the updated policy.
Contact
Questions about this policy or your data? Reach out at
hello@lftdapp.com.