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Riven

Riven

Your Apple Watch knows when you've truly hit muscle failure

0upvotes
Launched June 11, 2026
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About Riven

Riven is an innovative fitness app that transforms your Apple Watch into a sophisticated muscle failure tracker. Designed for serious hypertrophy and strength training enthusiasts, it automatically detects your workout sessions, counts repetitions without manual input, and evaluates your fatigue levels by analyzing rep speed decline—a scientifically proven indicator of muscle fatigue. After each set, Riven provides a detailed 0-100 failure score, helping users optimize their training intensity for better muscle growth and strength gains. Its reliance solely on the Apple Watch, without additional hardware or cameras, makes it an accessible yet powerful tool for gym-goers and athletes looking to maximize workout effectiveness.

Screenshots

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Pros

  • ✓Automates rep counting and exercise detection hands-free
  • ✓Measures true muscle fatigue via rep speed analysis
  • ✓Provides clear, actionable failure scores after each set
  • ✓No extra hardware required—just an Apple Watch
  • ✓Science-backed approach for hypertrophy and strength training

Cons

  • ✗Limited to users with an Apple Watch
  • ✗May require some initial calibration or setup
  • ✗Features and accuracy dependent on watch hardware capabilities

Use Cases

1Optimizing training intensity for muscle hypertrophy
2Tracking progress in strength training routines
3Ensuring workouts are performed to true muscle failure
4Personalized workout adjustments based on fatigue levels
5Revolutionizing home or gym workouts with minimal equipment
6Supporting scientifically driven fitness goals

Pricing

Likely operates on a freemium model with basic features available for free and premium features or detailed analytics offered through paid plans, typically starting around $10-$20 per month.

Quick Info

Category🤖 AI Assistants
Upvotes0
Comments2
Launched6/11/2026

Topics

Health & FitnessWearablesFitness

Makers

Baraa Bilal

Baraa Bilal

Alternatives

•Gymaholic
•StrongLifts 5x5
•Fitbod
•RepCount
•Trainerize

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