# 531 Strength vs Stronger

The clearest difference is in-app purchases: Stronger at none against 531 Strength's 4. Stronger also leads on ads (none vs shown). 531 Strength's advantage is ratings volume (12K vs 1). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. 531 Strength sells 4 one-off in-app purchases. Stronger asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for 531 Strength against 5.0 for Stronger. That said, the two scores are not equally well evidenced: 531 Strength has 12K ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | 531 Strength | Stronger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (12K ratings)](https://appshunter.io/ios/app/531-strength/id1062989244/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stronger-linear-progression/id6475137294/reviews)** |
| Number of ratings | **12K** | 1 |
| Positive reviews | 94.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 26 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Henrik Jachobsen](https://appshunter.io/developer/497731838) | [Strange Mesa](https://appshunter.io/developer/1664988829) |

## 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


### Stronger

[App page](https://appshunter.io/ios/app/stronger-linear-progression/id6475137294)

This fitness tracker automatically progresses your exercises after each workout, helping you build strength consistently. Customize sets, reps, and weights for linear or exponential progression without needing spreadsheets. See your progress over time and achieve your fitness goals.

**Highlights:** Automatic exercise progression, Customizable sets, reps, and weights, Linear and exponential progression options, No spreadsheets required, Track workout history and statistics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 531 Strength free?

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

### Is Stronger free?

Stronger is free to download, with no in-app purchases.

### Which has better reviews, 531 Strength or Stronger?

Stronger is rated higher. 531 Strength averages 4.9 out of 5 from 12K ratings, while Stronger averages 5.0 from 1 ratings.

### Do 531 Strength or Stronger have ads?

531 Strength shows ads; Stronger does not.

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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.*