# Train531: 5/3/1 Strength Coach — AI Training & Workout Planner > AI-powered 5/3/1 strength training app with personalized workout generation and progress analysis. (iPhone/iPad app by Aaron Hampton.) - Source: https://appshunter.io/ios/app/train531-531-strength-coach/id6760325735 (this page in markdown: same URL + `.md`) - Developer: [Aaron Hampton](https://appshunter.io/developer/1409652918) - Category: Health & Fitness, Sports - Price: Free with in-app purchases - Rating: 4.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 26.0 · 39 MB - Languages: American English, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese, Korean, Brazilian Portuguese, Russian and 3 more - Released: 2026-03-13 - Data updated: 2026-08-19 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/train531-531-strength-coach/id6760325735/reviews.md ## What is Train531? 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) - 50+ exercises pre-loaded with muscle group tagging - 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/ ## Key features - AI-driven supplemental and accessory workout generation - Personalized training based on history, equipment, and goals - Progress analysis with estimated 1RM trends and volume charts - Actionable feedback from AI coach - Automatic PR detection - Cross-platform syncing (iOS, web) ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Pro Yearly | $34.99 | per year | | Pro Monthly | $4.99 | per month | ## Frequently asked questions about Train531 ### What is Train531? Train531 is a strength training application designed for users following the 5/3/1 program. It differentiates itself by incorporating an AI coach to generate personalized supplemental and accessory workouts, going beyond basic percentage calculations. ### How does Train531's AI coach work? The AI coach analyzes your training history, available equipment, and stated goals to prescribe supplemental and accessory exercises. This aims to eliminate guesswork and optimize your training alongside your main 5/3/1 lifts. ### Does Train531 offer a free trial? Yes, every plan starts with a 30-day free trial, allowing you to experience the full AI coaching features for a month. You can cancel anytime during the trial period. ### What are the subscription costs for Train531? After the free trial, Train531 offers two subscription options: $4.99 per month or $34.99 per year. Both plans provide access to the AI training and workout planner features. ### What devices does Train531 support? Train531 is available on iPhone and iPad. Your training data syncs seamlessly across these devices and the web app at app.train531.com. ### How often is Train531 updated? The latest version available is 1.5.0, which was last updated on August 16, 2026. This indicates a relatively active development cycle for the application. ### What is the age rating for Train531? Train531 has an age rating of 4+. This suggests it is suitable for a broad audience and does not contain mature content. ### Does Train531 have ads? No, Train531 is ad-free. The application focuses on providing a clean and focused training experience without advertisements. ## Version history (last 5 releases) ### 1.5.0 — 2026-08-16 EASIER TO READ, ESPECIALLY IN DAYLIGHT The app was tuned in dark mode, and the light appearance shipped without anyone checking it. Text carrying your weights, reps and units was well below a readable contrast level. Every screen has been remeasured in both appearances and fixed. LARGER TEXT NOW ACTUALLY WORKS Text size settings did nothing before, and turning them up made things worse, because icons grew while the words beside them stayed small. The whole app now scales properly, with layouts that reflow instead of truncating. JOKER SETS After an AMRAP that beats its target by two or more reps, you can add heavier low-rep sets above the prescription. Steps 5% of your training max, up to three. Offered only on a day the bar is flying, the way Wendler intended, and never on a day you ground it out. SEE YOUR FIRST CYCLE BEFORE YOU START Onboarding now shows the whole four weeks built from the numbers you just entered: your four days, your top sets, and how the percentages progress to the deload. It also says plainly that the program runs four days a week. COACHING THAT STARTS FROM YOUR NUMBERS The coach used to have nothing to go on for your very first workout. It now reads the balance between your lifts and works from it, so the first prescription is based on you rather than a dropdown. ALSO - Set type badges and controls now have visible edges instead of blending into the background - Charts are readable in dark mode - Assorted layout fixes on the workout screen and in onboarding ### 1.4.0 — 2026-08-12 FIXED: LOST SETS If the app was interrupted mid-workout, reps you had already logged could disappear when you resumed. That is fixed. Your device is now the authority on a workout in progress, and nothing arriving later can overwrite work you have already done. REST TIMER ON YOUR LOCK SCREEN Your rest countdown now runs as a Live Activity, so you can see it on the Lock Screen and in the Dynamic Island without unlocking your phone. END-OF-CYCLE TRAINING MAX DECISIONS When a cycle ends, Train531 now walks you through whether to push each training max up, hold it, or back it off, using what your AMRAP sets actually showed. PLAIN ENGLISH The app now says what 5/3/1 is, what AMRAP means and why that set matters, and spells out BBB, FSL, and SSL where you meet them mid-workout instead of leaving you with bare acronyms. BETTER EXERCISE SWAPS Swapping an exercise no longer dead-ends when nothing matches your equipment. You will always get options, with anything outside your equipment clearly marked, plus a way to add your own. Five exercises that could never be selected are now reachable. ALSO - Haptic feedback throughout the workout screen, so you can confirm a set without looking - One clear Generate Workout button instead of two that did nearly the same thing - A tuned light appearance, and better contrast throughout ### 1.3.0 — 2026-07-22 Custom exercises are here. If your favorite movement isn't in the catalog, add it yourself: name it, tag the muscles and equipment, and it works everywhere: in workouts, swaps, and your training history. It syncs across your devices too. Smarter in the gym: - Add any exercise to a live workout, including ones you just created - Accessory sets remember last session's weight so you're not guessing - Your AMRAP card shows last time's result and when to rack it - Undo a mistyped set instead of living with bad data - Need more rest? Tap +30 sec Under the hood: your estimated 1RM chart now only counts real top-end sets, coaching advice ships improvements faster, and several rare sync crashes are fixed. ### 1.2.0 — 2026-06-14 Smarter exercise swaps and customizable extra work. - SWAP ANY ASSISTANCE EXERCISE: Tap Swap on any accessory to pick from a full menu of alternatives — at least five options, ranked by movement pattern and muscle group, filtered to the equipment you actually have. Options never repeat until you've exhausted them. - AI FILLS THE GAPS: Limited equipment? When the catalog runs thin, the AI coach generates extra equipment-valid alternatives on the fly — and remembers them so they're instant next time. - CHANGE YOUR EXTRA WORK: Don't want Boring But Big today? Switch your supplemental template to FSL, SSL, Widowmaker, or none — or let the coach pick the best one based on your recent AMRAP performance. - YOUR MAIN LIFTS STAY PUT: Squat is squat. The core 5/3/1 work is never altered — only your assistance and supplemental work is yours to customize. Requires iOS 26 or later. ### 1.1.3 — 2026-06-13 • Fixed exercise swap — it now reliably finds a suitable alternative for your available equipment, including smarter AI-picked substitutions when there's no exact match. • General performance and reliability improvements. ## Apps similar to Train531 | App | Rating | Price | Category | | --- | --- | --- | --- | | [Your 531 Strength Trainer](https://appshunter.io/ios/app/your-531-strength-trainer/id6748484103) | — | Free | Health & Fitness | | [Top Set Training](https://appshunter.io/ios/app/top-set-training/id6757244828) | — | Free | Health & Fitness | | [nSuns 531 Powerlifting](https://appshunter.io/ios/app/nsuns-531-powerlifting/id6757189291) | — | Free | Health & Fitness | | [Strength Maxing](https://appshunter.io/ios/app/strength-maxing/id6753698915) | — | Free | Health & Fitness | | [Forge 5/3/1](https://appshunter.io/ios/app/forge-531/id6740412067) | 5.0 (1) | Free | Health & Fitness | | [Strength Cycle](https://appshunter.io/ios/app/strength-cycle/id6762101377) | — | Free | Health & Fitness | ## More apps by Aaron Hampton - [Vocal Remover - SongSplit AI](https://appshunter.io/ios/app/vocal-remover-songsplit-ai/id6757964697) - [Just Habits: Habit Tracker](https://appshunter.io/ios/app/just-habits-habit-tracker/id6760575165) - [Pace Calculator: Pacesmith](https://appshunter.io/ios/app/pace-calculator-pacesmith/id6761560852) - [Tip Calculator - Gratuity](https://appshunter.io/ios/app/tip-calculator-gratuity/id6761670200) - [Melancholy Otters](https://appshunter.io/ios/app/melancholy-otters/id6764218567) All apps by Aaron Hampton: https://appshunter.io/developer/1409652918 --- *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 2026-08-19.*