Stop using a calculator disguised as an app.
Every other 5/3/1 app does the same thing: you enter your maxes, it spits out percentages. When it comes to accessories, supplemental work, and what to actually do when you stall — you're on your own.
Train531 is different. It's a 5/3/1 training app with an AI coach built in.
SMART WORKOUT GENERATION
Your warmup, working sets, and AMRAP are calculated from Wendler's proven programming. But your supplemental and accessory work is prescribed by AI based on your training history, available equipment, and goals. No more guessing what to pair with your main lifts.
PROGRESS ANALYSIS
Track estimated 1RM trends and weekly volume with clear charts. The AI coach analyzes your training data and gives you actionable feedback — not just graphs you have to interpret yourself.
PERSONAL RECORDS
Automatic PR detection using the Epley formula. Hit a new estimated max? You'll know immediately.
TRAIN ANYWHERE
Your data syncs across iPhone, iPad, and the web app at app.train531.com. Log a set on your phone, review your progress in the browser — always in sync.
BUILT FOR LIFTERS
- Full 5/3/1 programming: warmup, working sets, AMRAP, supplemental, accessories
- Rest timer tuned by set type (60s warmup → 180s AMRAP)
- 166 exercises pre-loaded, browsable by movement pattern and muscle group
- Exercise library with favorites for quick access
CLEAN & FOCUSED
No social feeds. No transformation photos. No 47 program templates you'll never use. Just 5/3/1, done right, with intelligence behind it.
TRY BEFORE YOU BUY
Every plan starts with a 30-day free trial — a full month of real training with the AI coach. Cancel anytime. Then it's $4.99/month or $34.99/year.
Requires iOS 26 or later.
Terms of Use (EULA): https://train531.com/terms/
Privacy Policy: https://train531.com/privacy/
Ratings & Reviews
4.0
out of 5
1 Ratings
Conditioning: log runs, rucks, bike, rower, prowler and more, with a weekly hard and easy count on Progress.
Bigger exercise library: 166 movements you can browse by movement pattern or muscle group, and swap into any workout.
Preview and edit a workout before you start it.
Plate calculator with your own bar weight and plate inventory.
Decimal keypad on weight fields, so half kilos and 2.5 lb jumps are easy to type.
Every save now reports a failure instead of hiding it, and a workout on screen can no longer be overwritten by sync.
Fully translated in 14 languages, including the paywall and accessibility labels.
Fixes for the coach check-in error, number formatting in French and German, and a handful of smaller issues.
Version 1.6.0
The developer, Aaron Hampton, 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 Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Aaron Hampton
Size
41.4 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
iPhone Requires iOS 26.0 or later.
iPad Requires iPadOS 26.0 or later.
Mac Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.