RepStack: Gym Workout Tracker

RepStack: Gym Workout Tracker

Strength Log & AI Coach

22 ratings
3 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • March 12, 2026
  • July 13, 2026

Features

RepStack: Gym Workout Tracker screenshot #1 for iPhone
RepStack: Gym Workout Tracker screenshot #2 for iPhone
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RepStack: Gym Workout Tracker screenshot #4 for iPhone
RepStack: Gym Workout Tracker screenshot #5 for iPhone
RepStack: Gym Workout Tracker screenshot #6 for iPhone
RepStack: Gym Workout Tracker screenshot #7 for iPhone
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About

This app guides your gym workouts by suggesting weights and reps for each set. It automatically adjusts your training based on your progress, allowing for flexible workout modifications and detailed logging of various set types. Access a large exercise library with offline capabilities.

AI-driven weight and rep suggestions
Adaptable workout scheduling
Detailed set type logging
Plate calculator
Offline exercise library
Progressive overload tracking
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What's New in RepStack

5.6.1

July 13, 2026

PHYSIQUE SCORE Take one photo and get a 0–999 score for your physique. Every visible muscle group is graded, notes are pinned right on your photo, and lagging groups link straight into your training. Add back and side poses for the full analysis, rescan later, and watch the score move. Photos are stored only on your device — and your first full analysis is free. PROGRAM LIBRARY 18 proven programs, ready in two taps: Wendler 5/3/1 (Original + BBB), nSuns 531LP, GZCLP, 5x5, Reddit PPL, PHUL, PHAT-style, and RepStack originals like Powerbuilding and Body Recomp. Percentage programs set your training maxes and handle week-to-week progression automatically. Plus fixes and performance improvements.

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Subscription plans

Repstack Pro Monthly

A monthly subscription to the best workout tracker

$9.991 Month
How to cancel RepStack subscription ⁉️
4

In-App Purchases

$119.99

Repstack Pro Lifetime

Lifetime membership to the best workout tracker

Events

Read more about Strong May 2026

Strong May 2026

Train 8 times this May. Earn rewards in-app.

May 1, 2026 May 30, 2026

User reviews

False

Makes you create account for 7 day trial then pay, after entering initial numbers.

Response from developer

You can actually skip this — there’s a “Maybe Later” option at the bottom of the paywall, no purchase needed to keep using the app. Sounds like it wasn’t visible enough, so that’s on me to fix. Appreciate you flagging it.

Seems good will update in a week

This app seems good, it wants money but you can skip it for the moment if you know where to look, I will keep using it and let yall know if I like it and if I end up paying money for the other features, wish it was completely free, but that doesn’t exist in this world, one thing that bugged me right off the bat is I tried adding sit ups to my workout and the app bugged out and didn’t let me, other then that it’s super smooth and easy to use.
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Response from developer

I’m happy to hear you have an overall good experience. If you have any additional feedback or anything else, feel free and let me know, I am more than happy to fix. Also thank you for using it!!

Legit pointless

Went on there to look at how my strength compared only for it to give me a workout, and that was it not even based on the weight that I used just based on whatever it wanted

Response from developer

You're right that this could be clearer on first open — that's on me to fix. For context: the Strength Score is calculated from your bodyweight and experience level using standard ratios for the 5 main lifts, and gets more accurate as you log real sets. The workout is a starting point built from your experience level, fully editable. If you're open to giving it another shot, email hello@rep-stack.com and I'll personally walk you through it.

Developer apps

FAQ

Does RepStack have ads?

Yes, RepStack contains advertisements. As a free application, ads are displayed to support its development and maintenance.

What are the subscription options for RepStack Pro?

RepStack Pro offers weekly at $2.99, monthly at $9.99, and yearly at $39.99. The yearly plan includes a 7-day free trial.

Can I use RepStack without an internet connection?

Yes, RepStack works offline. This means you can log your workouts and access the exercise library even when gym Wi-Fi is poor or unavailable.

How does RepStack help with progressive overload?

RepStack automatically updates your weights and reps based on your previous performance, guiding you through progressive overload without the need for manual tracking or spreadsheets.

What kind of workout details can I log in RepStack?

You can log detailed strength training information including warmups, working sets, AMRAPs, drop sets, failure sets, RPE, RIR, and rest times.

What devices is RepStack available on?

RepStack is currently supported on iPhone and iPod devices.

How often is RepStack updated?

The latest version, 5.4.0, was released on June 29, 2026. Updates are frequent, ensuring the app remains reliable and feature-rich.

What makes RepStack's AI coach useful?

The AI coach tells you the exact weight and rep target before each set, adapting your workout dynamically. It also provides features like Strength Score and What-If Projections for advanced training insights.