# 531 Strength vs nSuns 5/3/1

The clearest difference is ads: nSuns 5/3/1 at none against 531 Strength's shown. nSuns 5/3/1 also leads on update cadence (every 9 days vs every 2 months). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. 531 Strength sells 4 one-off in-app purchases and nSuns 5/3/1 sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for 531 Strength against 4.9 for nSuns 5/3/1. Both are backed by a comparable volume of ratings — 12K and 4.9K respectively. Written reviews are what separate them: 94% of 531 Strength's written reviews are positive against 97% of nSuns 5/3/1's.

531 Strength ships an update every 2 months, nSuns 5/3/1 every 9 days. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | 531 Strength | nSuns 5/3/1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (12K ratings)](https://appshunter.io/ios/app/531-strength/id1062989244/reviews) | **[4.9 (4.9K ratings)](https://appshunter.io/ios/app/nsuns-531/id1265494052/reviews)** |
| Number of ratings | **12K** | 4.9K |
| Positive reviews | 94.0% of reviews | **96.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 26 MB | 8 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 9+ |
| Developer | [Henrik Jachobsen](https://appshunter.io/developer/497731838) | [Jonas Reichert](https://appshunter.io/developer/991237310) |

## What reviewers say

### 531 Strength

[App page](https://appshunter.io/ios/app/531-strength/id1062989244)

This app simplifies tracking your progress on the 5/3/1 strength training program. It calculates and displays weights, reps, and sets based on your one-rep max, allowing you to easily plan and execute your workouts. Rounding options help match available gym plates.

**Highlights:** Calculate 5/3/1 weights, Track 1RM for exercises, View cycle step weights, Round weights to available plates, Full overview of weights, reps, sets

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Additional exercises | $1.99 | one-time |
| Adjustable set | $1.99 | one-time |
| Plate calculator | $1.99 | one-time |
| Progress log | $6.99 | one-time |

**What reviewers like**

- 🚀 Simple and efficient
- 👍 Intuitive interface
- 💪 Helps with strength gains
- 🔧 Customizable features
- ⏱️ Convenient timer

**What reviewers complain about**

- 🔢 Inaccurate percentage calculations
- 🗓️ Lack of ability to plan future workouts
- 📋 Limited exercise tracking
- 💰 Paid features not worth the cost

**Reported bugs**

- Rest timer stops when app is backgrounded
- Plate calculator not flexible enough

**Requested features**

- Ability to adjust training max separately from 1RM
- Option to track rep PRs and estimated 1RM
- Accessory exercise tracking and planning
- Sync progress across devices


### nSuns 5/3/1

[App page](https://appshunter.io/ios/app/nsuns-531/id1265494052)

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.

**Highlights:** 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

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Beer | $0.99 | one-time |
| Coffee | $1.99 | one-time |
| Protein Brownie | $2.99 | one-time |
| Protein Shake | $3.99 | one-time |
| Gym Weekly Fee | $4.99 | one-time |
| Supporter | $8.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Helps track progress
- 🚀 Seamless workout tracking
- 👍 Customizable templates
- 🚀 Automatic weight calculations

**What reviewers complain about**

- 🐛 Occasional bugs or glitches
- 💡 Lack of ability to change workout days
- 💡 Limited accessory exercise customization
- 💡 No option to carry over accessory exercises
- 💡 No plate calculator or weight breakdown

**Reported bugs**

- Workout template not updating correctly
- Timer issues or disappearing on app switch
- Inconsistencies with training max updates

**Requested features**

- 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


## Frequently asked questions

### Is 531 Strength free?

531 Strength is free to download, with in-app purchases available.

### Is nSuns 5/3/1 free?

nSuns 5/3/1 is free to download, with in-app purchases available.

### Which has better reviews, 531 Strength or nSuns 5/3/1?

nSuns 5/3/1 is rated higher. 531 Strength averages 4.9 out of 5 from 12K ratings, while nSuns 5/3/1 averages 4.9 from 4.9K ratings.

### Do 531 Strength or nSuns 5/3/1 have ads?

531 Strength shows ads; nSuns 5/3/1 does not.

### Which is updated more often, 531 Strength or nSuns 5/3/1?

531 Strength ships an update every 2 months, and nSuns 5/3/1 every 9 days. Most recently, 531 Strength was updated on November 11, 2026 and nSuns 5/3/1 on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*