# 531 Strength vs Physique Tracker

The clearest difference is update cadence: Physique Tracker at every 2 days against 531 Strength's every 2 months. Physique Tracker also leads on iOS requirement (16.0 vs 18.0). 531 Strength's advantage is ratings volume (12K vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. 531 Strength sells 4 one-off in-app purchases and Physique Tracker sells 8 in-app purchases, starting at $2.99 per 7 days. 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 5.0 for Physique Tracker. That said, the two scores are not equally well evidenced: 531 Strength has 12K ratings behind it against 2, so its average is the more settled of the two.

531 Strength ships an update every 2 months, Physique Tracker every 2 days. The most recent releases landed on October 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | 531 Strength | Physique Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (12K ratings)](https://appshunter.io/ios/app/531-strength/id1062989244/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/physique-tracker-bodybuilding/id6497067286/reviews)** |
| Number of ratings | **12K** | 2 |
| Positive reviews | 94.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 26 MB | 24 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Henrik Jachobsen](https://appshunter.io/developer/497731838) | [Phys Tech LLC](https://appshunter.io/developer/1741259325) |

## 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


### Physique Tracker

[App page](https://appshunter.io/ios/app/physique-tracker-bodybuilding/id6497067286)

Organize and track your fitness journey visually with this bodybuilding app. It allows you to categorize photos and videos, add tags and notes, and easily search for specific progress markers. Keep all your gym-related media in one place to monitor your physique development.

**Highlights:** Organize photos and videos by groups, Add tags and notes to media, Searchable media library, Mark items as favorite, Pin items and groups, Add media from device library

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro Plan | $2.99 | per 7 days |
| Monthly Pro Plan | $7.99 | per month |
| Weekly Pro Plan | $7.99 | per 7 days |
| Monthly Pro Plan | $12.49 | per month |
| 3-Month Pro Plan | $12.99 | per 3 months |
| 3-Month Pro Plan | $15.99 | per 3 months |
| Annual Pro Plan | $29.99 | per year |
| Annual Pro Plan | $49.99 | per year |


## Frequently asked questions

### Is 531 Strength free?

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

### Is Physique Tracker free?

Physique Tracker is free to download, with in-app purchases available.

### Which has better reviews, 531 Strength or Physique Tracker?

Physique Tracker is rated higher. 531 Strength averages 4.9 out of 5 from 12K ratings, while Physique Tracker averages 5.0 from 2 ratings.

### Do 531 Strength or Physique Tracker have ads?

Both 531 Strength and Physique Tracker show ads.

### Which is updated more often, 531 Strength or Physique Tracker?

531 Strength ships an update every 2 months, and Physique Tracker every 2 days. Most recently, 531 Strength was updated on October 29, 2026 and Physique Tracker on September 23, 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.*