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LiftProof
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Terms of Service

Effective date: May 1, 2026

These Terms govern your use of the LiftProof iOS app, Apple Watch app, and the liftproof.app website (collectively, the “Service”). The Service is operated by Stoa LLC, a Maryland limited liability company doing business as LiftProof (“we,” “us,” or “LiftProof”). By installing the app or using the website, you agree to these Terms. If you do not agree, do not use the Service.

1. What LiftProof is

LiftProof is an outcome-based strength-training tracker. The iOS app logs workouts, computes progressive-overload recommendations, surfaces training history, and shows an advisory recovery score derived from Apple Health. The website hosts marketing content, training programs, exercise references, and fitness calculators. The Service is for personal fitness tracking and general wellness purposes only — it is not medical advice and is not a substitute for a qualified healthcare professional. See our Medical Disclaimer for the full statement.

2. No account required

LiftProof does not have a sign-up flow, a username, or a password. Onboarding is local-only — your data is stored on your device in a Core Data store and is not transmitted to LiftProof or any third party. There is nothing for us to authenticate, recover, or delete on your behalf because nothing leaves your device.

If a future version of LiftProof adds optional Sign in with Apple or cloud sync, that flow will be opt-in and these Terms will be updated before the change ships.

3. Your data stays on your device

Workouts, sets, reps, bodyweight entries, training maxes, goals, progress photos, and every other piece of content you create in LiftProof live in the app’s local Core Data store. Apple Health integration is opt-in: LiftProof reads sleep, heart-rate variability, and resting heart rate locally to compute an on-device recovery score, and optionally writes completed workouts and bodyweight entries back to Apple Health so all your fitness data stays in one place. Raw Apple Health samples are never transmitted off your device. Progress photos are stored with .completeFileProtectionUnlessOpen file protection and gated behind Face ID.

Because nothing is uploaded to a developer-owned server, you do not need to grant LiftProof any license to your data. You retain full ownership. Uninstalling the app removes the data with it. See our Privacy Policy for the full data inventory.

4. Subscriptions and in-app purchases

LiftProof offers a Free tier and a Premium tier. Premium is sold as three in-app purchases through Apple’s App Store using StoreKit:

All three options support Family Sharing, so a single purchase covers everyone in your iCloud Family group. Subscriptions renew automatically through the App Store unless you cancel at least 24 hours before the renewal date.

Cancellation — manage or cancel any LiftProof subscription in iOS Settings → your name → Subscriptions → LiftProof. Cancelling stops future charges; access continues until the end of the current billing period.

Refunds — App Store purchases are refunded by Apple, not by LiftProof. Submit a refund request at reportaproblem.apple.com. LiftProof cannot refund or modify App Store transactions on your behalf.

Free tier scope — the Free tier covers full set logging, the most recent month of history, freestyle workouts, and a single saved program. Premium unlocks unlimited history, advanced analytics, the recovery sub-tab, the energy sub-surface, share cards, and Year-in-Review. The Free / Premium split may change in future versions; if it does, anything you previously paid for stays unlocked.

5. Acceptable use

By using the Service you agree not to:

6. Intellectual property

The LiftProof name, the LIFT/PROOF wordmark, the L/P monogram app icon, the Iron-and-Gold visual system, the website copy, and the software powering the Service are owned by Stoa LLC and protected by copyright, trademark, and other intellectual-property laws. The underlying training methodology and exercise references draw on widely published, public-domain strength-training science; LiftProof does not claim ownership of those underlying concepts. You may not copy, modify, distribute, or create derivative works of LiftProof-owned material without our prior written consent.

7. Third-party services

The Service interoperates with three Apple-provided systems: HealthKit (sleep / HRV / RHR / workout writes / bodyweight writes), StoreKit (subscriptions and one-time purchases), and Live Activities + WidgetKit (lock-screen and home-screen surfaces). These flows are governed by Apple’s terms and privacy policy in addition to ours. The website also loads Plausible Analytics for privacy-first, cookie-free aggregate page-view counts; Plausible does not use advertising identifiers and does not track you across other sites.

8. Disclaimer of warranties

The Service is provided “as is” and “as available” without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Service will be uninterrupted, error-free, or compatible with every iPhone, iPad, or Apple Watch configuration. Recovery scores, strength-tier estimates, progressive-overload recommendations, and calculator outputs are informational estimates derived from generalized formulas — they are not medical, nutritional, or coaching advice and should not replace professional guidance.

9. Limitation of liability

To the fullest extent permitted by applicable law, neither Stoa LLC nor its members, officers, employees, or contractors shall be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages arising out of or related to your use of the Service, including but not limited to lost profits, lost data, or training-related injury. Our total aggregate liability for any claim arising from the Service is limited to the greater of (a) the amount you paid Stoa LLC for Service access in the twelve months preceding the claim, or (b) USD $50.

10. Assumption of risk

Weightlifting, resistance training, and physical activity carry inherent risks of injury. By using the Service and following any program, recommendation, or load suggestion shown in the app or on the website, you acknowledge those risks and assume sole responsibility for evaluating whether a given exercise or load is appropriate for your condition. Stop activity and consult a qualified healthcare professional if you experience pain, dizziness, or any other concerning symptom. See the Medical Disclaimer for the full statement.

11. Termination

Because LiftProof has no account, “termination” on your end means uninstalling the app and discontinuing use of the website — both actions are entirely under your control. We may suspend or restrict access to website features (for example, blocking abusive traffic) or revoke a Family Sharing entitlement that was acquired through a chargeback or refund. App Store-purchased entitlements are managed by Apple, not by us.

12. Changes to these Terms

We may revise these Terms when we change a feature, add a new flow, or respond to a regulatory change. The updated Terms will be posted here with a new effective date before the change ships in an app update or website deploy. If a change materially reduces your rights, we will summarize the change in the in-app changelog so you see it the next time you open LiftProof. Continuing to use the Service after the new Terms take effect constitutes acceptance.

13. Governing law and disputes

These Terms are governed by the laws of the State of Maryland, without regard to its conflict-of-laws principles. Any dispute arising out of or related to these Terms or the Service will be brought exclusively in the state or federal courts located in Garrett County, Maryland, and you consent to the personal jurisdiction of those courts. If any provision of these Terms is held unenforceable, the remaining provisions stay in full effect.

14. Contact

Questions about these Terms? Email [email protected]. For privacy-specific questions, see our Privacy Policy. For App Store billing or refund issues, contact Apple at reportaproblem.apple.com.