Gainzzzzz
This app is easy to use, and helps to keep me accountable to maintain and increase my gainzzzz. Whoever invented this is a genius and probably a super awesome person.
Free
In-App Purchases
About
Track your gym progress with an intuitive workout logger that focuses on showing you real strength gains. Log sets quickly, monitor personal records live, and receive guidance on your next training steps. Integrates seamlessly with Apple Watch for a phone-free experience.
✓Intuitive set logging with rest timers
✓Live personal record updates
✓Apple Watch integration
✓Progress visualization and trends
✓Muscle recovery insights
✓Customizable workout routines
✓AI-driven training recommendations
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What's New in RepZero
2.1.0
October 2, 2026
RepZero 2.1 brings redesigned body measurements and new Gainz Goblin achievements. NEW - Body measurements, redesigned: your weight, body fat, muscle mass, every circumference and height on one page, each with its own chart, low, high and average - Log every circumference at once in a single check-in - Goblin knockouts (Pro): finish 10 workouts with a goblin to knock it out, then knock out all eight to become Goblin Slayer IMPROVED - The Achievements screen opens much faster - A smoother launch screen - Coach plans show weights in your unit (lbs or kg) - Deleting a measurement now removes it on your other devices too - Apple Watch: the Gainz Goblin looks right again, and Today and the set logger line up properly - Fixed an oversized Start button on Up Next widgets and hard-to-read buttons in some dark themes
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Subscriptions & In-App Purchases
RepZero PRO Monthly
Monthly
$2.991 Month
1 Month trialUser reviews
FAQ
What is RepZero?
RepZero is a gym log and workout tracker designed to help users see tangible strength gains. It allows for quick logging of sets, real-time personal record tracking, and provides insights into what to train next.
Does RepZero have ads?
No, RepZero is ad-free, allowing for an uninterrupted workout experience. The app focuses on providing a clean interface for tracking your fitness progress.
What devices does RepZero support?
RepZero is available on Apple Watch, iPhone, and iPad. This broad compatibility ensures you can track your workouts across your preferred devices.
How does RepZero track progress?
RepZero displays estimated 1RM, PRs, and records for each lift. It also shows trends in volume, workout duration, and training time compared to previous periods, alongside muscle recovery status.
What are the subscription options for RepZero?
RepZero offers a 'RepZero PRO' subscription with monthly and yearly plans. The monthly plan costs $2.99 and includes a 1-month free trial, while the yearly plan is $19.99.
Can I use RepZero without a subscription?
Yes, RepZero offers a free version that includes core logging features and up to 5 custom routines. The PRO version unlocks advanced features like AI coaching and unlimited routines.
How often is RepZero updated?
The latest version of RepZero is 2.1.0, which was last updated on October 2, 2026. Updates typically include new features, bug fixes, and performance improvements.
What is the age rating for RepZero?
RepZero has an age rating of 4+. This indicates it is suitable for a wide range of users, with no mature content.
