Terms of Service

Effective Date: March 12, 2026

By using MuscleTuna ("the app"), operated by Minimal Effort,, you agree to these terms. If you do not agree, do not use the app.

1. What MuscleTuna Does

MuscleTuna is a workout tracking app that helps you plan, log, and analyze your workouts. Premium features include AI-powered workout generation, workout analysis, daily recommendations, and personalized trainer guidance.

2. Your Account

• You must be at least 13 years old to use the app.
• You are responsible for your account and the data you provide.
• You may sign in using Apple Sign-In or Google Sign-In.
• You can delete your account at any time from the app settings. This permanently removes all your data.

3. Free and Premium Features

• Free features: Manual workout tracking, progress history, pre-built routines, Apple Health sync, and exercise library.
• Premium features: AI workout generation, workout analysis, daily recommendations, trainer guidance, and injury tracking insights. These require an active subscription.

4. Subscriptions and Payments

• Premium subscriptions are billed through the Apple App Store.
• Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period.
• You can manage or cancel your subscription in your device's App Store settings.
• Refunds are handled by Apple according to their refund policy.

5. AI Features

• AI-generated workouts, analysis, and recommendations are created using your workout data, goals, and conditions.
• AI output is for informational and fitness purposes only. It is not medical advice.
• AI generation is limited to 3 per day for premium users.
• We do not guarantee the accuracy, completeness, or suitability of AI-generated content.

6. Health Disclaimer

MuscleTuna is not a medical device or healthcare provider. The app provides fitness tracking and AI-generated suggestions for informational purposes only. You should:

• Consult a healthcare provider before starting any exercise program.
• Stop exercising and seek medical attention if you feel pain, dizziness, or discomfort.
• Use your own judgment when following any workout recommendation.
• Not rely on the app to diagnose, treat, or prevent any medical condition.

7. Your Content

• You retain ownership of the data you create (workouts, custom exercises, notes).
• By using the app, you grant us permission to process your data to provide the service.
• You must not use the app for any unlawful purpose or to harass, abuse, or harm others.

8. Acceptable Use

You agree not to:

• Reverse engineer, decompile, or tamper with the app.
• Use automated systems to access the app (bots, scrapers).
• Attempt to access other users' data.
• Abuse AI features or circumvent rate limits.

9. Service Availability

• We aim to keep MuscleTuna available but do not guarantee uninterrupted service.
• We may update, modify, or discontinue features at any time.
• We are not liable for data loss due to service interruptions.

10. Limitation of Liability

To the maximum extent permitted by law, MuscleTuna, Minimal Effort, and its creators are not liable for any indirect, incidental, or consequential damages arising from your use of the app, including but not limited to injuries sustained during exercise, data loss, or reliance on AI-generated content.

11. Changes to These Terms

We may update these terms from time to time. We will notify you of significant changes through the app. Continued use after changes constitutes acceptance of the updated terms.

12. Contact Us

If you have questions about these terms, contact us at muscletunasupport@minimaleffort.co.