Riven: Reps & Muscle Failure
Auto gym workout tracker & log
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
Just lift. Riven detects every set, counts every rep and measures how close you got to failure, all automatically from your Apple Watch. Zero taps.
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
1.0.7
• New: Pro and Unlimited now start with a 7-day free trial. You won't be charged until the trial ends, and you can cancel anytime.
• Better set detection and exercise recognition.
• Bug fixes.
The developer, Bara Bilal, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Bara Bilal
- Size
- 31.4 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Pro Yearly $29.99
- Pro Monthly $2.99
- Unlimited Monthly $9.99
- Unlimited Yearly $79.99
- Copyright
- © 2026 Baraa Bilal