# 531 BBB — Fitness Tracker for 531 BBB > Strength training tracker for the 5/3/1 BBB program with extensive customization. (iPhone/iPad app by Kevin Li.) - Source: https://appshunter.io/ios/app/531-bbb/id1494591328 (this page in markdown: same URL + `.md`) - Developer: [Kevin Li](https://appshunter.io/developer/1493998156) - Category: Health & Fitness, Productivity - Price: Free - Rating: 3.67/5 from 15 App Store ratings · 13 written reviews indexed - Age rating: 4+ - Requires: iOS 12.4 · 3 MB - Languages: English - Released: 2020-01-11 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/531-bbb/id1494591328/reviews.md ## What is 531 BBB? Features - Cycle tracking - Set tracking - Rest timer - Program template customization - Assistance exercise customization - Round to weight customization - Training max customization - Cycle weight progression customization ## Key features - Cycle tracking - Set tracking - Rest timer - Program template customization - Assistance exercise customization - Weight progression customization ## Recent user reviews (10 of 13) All indexed reviews: https://appshunter.io/ios/app/531-bbb/id1494591328/reviews.md ### 3/5 — Great app but crashes a lot. *2025-06-13* Recently downloaded this app, iPhone user. Has everything I need but tends to crash when open for more then 10 seconds. ### 1/5 — Crashing *2024-09-18, version 1.0.1* All the time ### 1/5 — App keeps crashing *2024-08-28, version 1.0.1* App keeps crashing/force closing ### 4/5 — Love it, though crashing *2023-08-10* Thank you to the developer. I know this is a shot in the dark, but if it’s still being supported at all — I’ve noticed in the past week or so the app crashing very frequently regardless of which page I’m on or activity I’m engaged in. ### 4/5 — App keeps crashing *2023-03-24* It’s a good app but it keeps crashing on me ### 4/5 — Review *2022-06-01* Fantastic app does everything you could want for 5/3/1 However app randomly crashes quite frequently ### 1/5 — Crash crash crash *2022-05-28* I set up my program and when I started my workouts the app crashes within 5 seconds of opening. I can log my work out as done, and crash, ### 4/5 — Crashing *2022-01-11* Love the app, but crashes after about a minute of use 😕 it does save results, but slightly annoying to have to reboot after every set. ### 1/5 — App Crashes Constantly-Unusable *2021-02-01* Please update the app! Seems like a great intuitive layout but the app in its current iteration crashes within a few seconds every time. Unusable in current state. ### 5/5 — We need a kg version *2020-10-10* Hey bro. It’s really nice and simply log app. But no kg choice. Can you add choice of kg? ## Frequently asked questions about 531 BBB ### What is 531 BBB? 531 BBB is a strength training program that focuses on progressive overload using a specific rep and set scheme. This app is designed to help users meticulously track their progress within this program. ### Can I customize the 531 BBB program in the app? Yes, 531 BBB offers extensive customization options. You can customize program templates, assistance exercises, and training maxes to tailor the program to your specific needs. ### Does 531 BBB have ads? No, 531 BBB does not contain advertisements. The app is free to use and does not display any ads, providing an uninterrupted user experience. ### What devices is 531 BBB available on? 531 BBB is currently available for iPhone and iPod devices. It is designed to run on iOS operating systems. ### How often is 531 BBB updated? The app was last updated on March 2, 2020, with version 1.0.1. Future updates will depend on the developer's ongoing support and user feedback. ### What is the age rating for 531 BBB? 531 BBB has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions. ### What are the main features of 531 BBB? Key features include cycle tracking, set tracking, a rest timer, and detailed customization for program templates, assistance exercises, and weight progression. ### What is the user rating for 531 BBB? 531 BBB has a user rating of 3.7 stars based on 15 ratings. This reflects a generally positive but mixed reception from its user base. ## Version history (last 2 releases) ### 1.0.1 — 2020-03-02 Fixed week reordering bug. Also fixed an issue where the timer would stop refreshing its time after going into the background ### 1.0 — 2020-01-11 No release notes. ## Apps similar to 531 BBB | App | Rating | Price | Category | | --- | --- | --- | --- | | [Personal Training Coach](https://appshunter.io/ios/app/personal-training-coach/id1325495597) | 4.7 (209) | Free | Health & Fitness | | [531 Strength](https://appshunter.io/ios/app/531-strength/id1062989244) | 4.9 (11,290) | Free | Health & Fitness | | [GreySkull LP Weight Lifting](https://appshunter.io/ios/app/greyskull-lp-weight-lifting/id1499048479) | 4.7 (41) | Free | Health & Fitness | | [Lift4Fit Gym workout logger](https://appshunter.io/ios/app/lift4fit-gym-workout-logger/id1551467892) | 4.4 (53) | Free | Health & Fitness | | [5/3/1 Workout - Zen Labs](https://appshunter.io/ios/app/531-workout-zen-labs/id1361925217) | 4.6 (210) | Free | Health & Fitness | | [Five/Three/One - 531 Workouts](https://appshunter.io/ios/app/fivethreeone-531-workouts/id1560266240) | 4.9 (1,218) | Free | Health & Fitness | ## More apps by Kevin Li - [DivRise](https://appshunter.io/ios/app/divrise/id1493998157) - [ReleasifyX](https://appshunter.io/ios/app/releasifyx/id1494604431) - [TIME WAGMI](https://appshunter.io/ios/app/time-wagmi/id1598285258) All apps by Kevin Li: https://appshunter.io/developer/1493998156 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*