531 Strength

Contains adsIn-app purchases
4,8
89 reviews
10K+
Downloads
Content rating
Everyone
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About this app

Makes it quick and easy to get a full overview of all weights, reps and sets based off your 1RM when you’re following the 5/3/1 program.

- Save your current 1 RM for each of the four exercises

- View calculated weights for each step in the cycle

- Round the weight to match the plates you have available

This app is made for people who are familiar with the structure of the 5/3/1 program and who needs simple access to the calculated weights for each exercise.
Updated on
05 Jul 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4,8
87 reviews
Steve Messenger
23 October 2024
It's not a bad app. I normally track on paper from an Excel sheet I built. Calculations seem to be right on with the 531 program I've run before. If you push and follow this with consistency, it really works. However, after a while, when the weight gets high enough, it's hard on the body. I had to take a break from it. Do not skip de-load. It's important.
2 people found this review helpful
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Tyler Monk
30 September 2024
If you're on the fence, give it a shot. I was apprehensive after switching back to Android and losing the app I was using. There's another app that I feel is better, but I just can't bring myself to pay $10 for it. This app you set your weights and you can click each set which will put a checkmark on it so you don't lose where you're at. It will allow you to adjust your weights after deload week. Uncheck whatever workouts you don't wanna add weight to then +/- the ones you do. Great app. Simple.
2 people found this review helpful
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Giuseppe Mancone
28 June 2023
Great app! Workout timer, logs, graphs, reasonable interface. Things I'd love: - Would be nice to see if the last workout was a 5, 3 or 1 day without going into the log - Saving additional sets into the log would be nice, too. - Automatic sync with Google Drive would be so sweet - Option to make all the graphs use the same time frame, regardless of data points for that exercise - Show top set/date on each data point on graph when clicked - Custom plates sets per exercise (ex: 15lb bump/no iron)
2 people found this review helpful
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What's new

Bug fixes and improvements.

- Improved support for Android 14.

No subscriptions - future upgrades are always free for all PREMIUM users.