531 Trainer vs nSuns 5/3/1
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
531 Trainer
Simplify your strength training with this app. It calculates your daily workouts based on your max lifts, eliminating the need for spreadsheets or manual calculations at the gym. Easily progress to the next cycle with automatic weight increments.
- Calculates daily workouts
- Automatic weight progression
- One Rep Max calculator
- Assistance work percentage calculator
- Supports kilograms or pounds
- Visual weight plate guidance
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5/3/1 made easy You no longer need to deal with clunky spreadsheets or fumble around at the gym trying to find your numbers. Everything is right on your phone and easy to access. Simply enter your max for military press, deadlift, bench press and squat once and have each day's workout calculated for you. When you finish a cycle, hitting just one button increments the weight for each of your lifts leaving you ready to quickly continue your training. Features: - One Rep Max Calculator - Assistance Work Percent Calculator - Uses Kilograms or Pounds - Program persistence - Visual information on what weight plates to use Icons Provided By Icons8 icons8.com/web-app/364/Settings icons8.com/web-app/437/Twitter icons8.com/web-app/435/Facebook icons8.com/web-app/94/Lock icons8.com/web-app/152/Unlock
nSuns 5/3/1
This app is a dedicated companion for the nSuns 5/3/1 strength training program. It allows users to log lifts, track progress, and automatically calculates weight progression based on training max and AMRAP results. Customizable features and progress charts help users optimize their workouts.
- Log lifts and track progress
- Automatic weight progression
- AMRAP-driven programming
- Customizable accessory exercises
- Rest timer with Apple Watch support
- Progress charts for main lifts
- iCloud sync
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The dedicated tracking companion for the nSuns 5/3/1 strength program. Log your lifts, track your progress, and let the app handle the math. Your Training Max and AMRAP results drive automatic weight progression — no spreadsheets needed. FEATURES • 4-day, 5-day, 6-day Squat and 6-day Deadlift templates • Automatic weight and rep programming based on your Training Max • AMRAP-driven progression — lift more, the app adjusts automatically • Customizable accessory exercises for each day • Rest timer with Apple Watch support • Progress charts for each main lift • iCloud sync — workouts and history across all your devices • Metric and imperial units APPLE WATCH A companion watch app keeps your rest timer and current set on your wrist. ABOUT THE PROGRAM The nSuns 5/3/1 LP program was created by reddit user /u/nSuns. For details: reddit.com/r/nSuns ABOUT THIS APP Built by a lifter, for lifters. Free to download — no paywalled core features. If you find it useful, a rating in the App Store means a lot. Contact: reddit.com/u/jonnybeegod
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Verdict
The clearest difference is rating: nSuns 5/3/1 at 4.9 against 531 Trainer's 4.3. nSuns 5/3/1 also leads on ratings volume (4.9K vs 10) and review sentiment (97% vs 82%). 531 Trainer's advantage is in-app purchases (none vs 6) and iOS requirement (7.1 vs 17.0). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. nSuns 5/3/1 sells 6 one-off in-app purchases. 531 Trainer asks for nothing beyond the download.
nSuns 5/3/1 holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: nSuns 5/3/1 has 4.9K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 82% of 531 Trainer's written reviews are positive against 97% of nSuns 5/3/1's.
531 Trainer ships an update fortnightly, nSuns 5/3/1 every 9 days. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | 531 Trainer | nSuns 5/3/1 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (10 ratings) | 4.9 (4.9K ratings) — better |
| Positive reviews | 81.8% of reviews | 96.7% of reviews — better |
| Number of ratings | 10 | 4.9K — better |
| Update frequency | Fortnightly | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 7.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 8 MB |
| Age rating | 4+ | 9+ |
| Developer | Kevin French | Jonas Reichert |
Customer experience
531 Trainer
nSuns 5/3/1
Bugs and requests
531 Trainer
Not enough reviews yet to summarise bugs or requests.
nSuns 5/3/1
Reported bugs
3 issues- Workout template not updating correctly
- Timer issues or disappearing on app switch
- Inconsistencies with training max updates
Requested features
5 requests- Ability to customize workout days
- Option to add and track custom accessory exercises
- Carry over accessory exercises to next cycle
- Plate calculator or weight breakdown feature
- Notes section for each workout
In-app purchases
531 Trainer
No in-app purchases
nSuns 5/3/1
- Beer$0.99
- Coffee$1.99
- Protein Brownie$2.99
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- Protein Shake$3.99
- Gym Weekly Fee$4.99
- Supporter$8.99
Questions
Is 531 Trainer free?
Is nSuns 5/3/1 free?
Which has better reviews, 531 Trainer or nSuns 5/3/1?
Do 531 Trainer or nSuns 5/3/1 have ads?
Which is updated more often, 531 Trainer or nSuns 5/3/1?
Other comparisons
