Riven: Reps & Muscle Failure
Bara Bilal Health & Fitness iPhoneiPadiPod touchApple Watch
Riven: Reps & Muscle Failure is a free Health & Fitness app for iPhone and iPad by Bara Bilal. Rated 5.0/5 from 2 ratings. Requires iOS 17.0.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 32 MB
- Age 4+
- Updated
- Sep 28
- 2026 · v1.0.8
Screenshots
About Riven: Reps & Muscle Failure
Just lift. Riven does the rest. Riven automatically detects your sets, counts your reps and measures how close each set came to muscle failure, all from your Apple Watch. No buttons to press, no phone to pull out, no logging between sets. You train, and it's already recorded. FULLY AUTOMATIC ◆ Sets: Riven sees when a set starts and when it ends. Nothing to start or stop. ◆ Reps: every rep is counted from your wrist as you do it. ◆ Exercises: 60+ common lifts recognized on their own, including bench press, squat, curls, rows, pulldowns and lateral raises. ◆ Failure: the moment you rack the weight, your set gets a score from 0 to 100 for how close you came to true failure. ◆ Log: sets, reps, exercises and scores are saved on their own and synced to Apple Health. KNOW IF YOU HIT FAILURE Muscle grows when you train close to failure, but most lifters stop a few reps short and never know it. Riven tells you after every set, in colors you can read at a glance: Red: stopped short Orange: working Yellow: near failure Green: true failure Each week you see which muscle groups really hit failure and which ones you left in the tank. HOW IT MEASURES FAILURE Your Apple Watch reads your wrist's motion 100 times a second. As a muscle tires, your reps slow down. Riven measures that slowdown, called velocity loss, which is the best-studied sign of fatigue in strength training. Heart rate is saved to your log, but it isn't part of the score. NOTHING EXTRA No camera, no barbell clip, no chest strap. Works with barbells, dumbbells, cables and machines, using the watch you already wear. REQUIREMENTS Apple Watch Series 6 or later (watchOS 10+), paired with an iPhone on iOS 17 or later. Detection, counting and scoring run on the watch. The iPhone app handles setup, history and plans. PRIVACY Motion is processed on your devices. No ads. No third-party trackers. Full policy at riven.fit/privacy. PLANS ◆ Free: 1 workout per week, forever. ◆ Pro: 3 workouts per week, monthly or yearly. ◆ Unlimited: no weekly limit, monthly or yearly. Prices are shown in the app for your region. Payment is charged to your Apple ID when you confirm your purchase. Subscriptions renew automatically unless turned off at least 24 hours before the current period ends. Your account is charged for renewal within 24 hours before the period ends. You can manage or cancel subscriptions in your Apple ID account settings. Privacy: riven.fit/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms: riven.fit/terms
What’s new
Version 1.0.8 · Updated September 28, 2026
Bug fixes, UI improvements and algorithm enhancements.
App privacy
The developer, Bara Bilal, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Health & Fitness: Health, Fitness
Used for: App Functionality
Alternatives to Riven: Reps & Muscle Failure
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Riven: Reps & Muscle Failure | 5.0 / 5 (2 ratings) | Free | September 28, 2026 | |
| Sonar Fit | – | Free | Oct 17, 2026 | Compare |
| Gymatic Workout Tracker | 4.3 / 5 (1,913) | Free | Aug 19, 2026 | Compare |
| Health Auto Export - JSON+CSV | 4.3 / 5 (422) | Free | Oct 23, 2026 | Compare |
| Motra AI Workout Fitness Coach | 4.7 / 5 (3,047) | Free | Aug 10, 2026 | Compare |
| MacroFactor Workouts - Tracker | 4.8 / 5 (4,807) | Free | Oct 3, 2026 | Compare |
| Bevel: AI Health Coach | 4.8 / 5 (17,425) | Free | Oct 13, 2026 | Compare |