# 531 Trainer vs GZCL Method Workout Logger

The clearest difference is in-app purchases: 531 Trainer at none against GZCL Method Workout Logger's 2. 531 Trainer also leads on review sentiment (82% vs 63%) and iOS requirement (7.1 vs 13.0). GZCL Method Workout Logger's advantage is rating (4.7 vs 4.3) and ratings volume (230 vs 10). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. GZCL Method Workout Logger sells 2 one-off in-app purchases. 531 Trainer asks for nothing beyond the download.

GZCL Method Workout Logger holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: GZCL Method Workout Logger has 230 ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 82% of 531 Trainer's written reviews are positive against 63% of GZCL Method Workout Logger's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | 531 Trainer | GZCL Method Workout Logger |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (10 ratings)](https://appshunter.io/ios/app/531-trainer/id870272886/reviews) | **[4.7 (230 ratings)](https://appshunter.io/ios/app/gzcl-method-workout-logger/id1517032809/reviews)** |
| Number of ratings | 10 | **230** |
| Positive reviews | **81.8% of reviews** | 63.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 50 MB |
| Requires iOS | **7.1** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kevin French](https://appshunter.io/developer/870272889) | [Strongomatic, LLC](https://appshunter.io/developer/1437949460) |

## What reviewers say

### 531 Trainer

[App page](https://appshunter.io/ios/app/531-trainer/id870272886)

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.

**Highlights:** Calculates daily workouts, Automatic weight progression, One Rep Max calculator, Assistance work percentage calculator, Supports kilograms or pounds, Visual weight plate guidance

**Features:** macOS Compatibility

**In-app purchases:** none


### GZCL Method Workout Logger

[App page](https://appshunter.io/ios/app/gzcl-method-workout-logger/id1517032809)

This workout tracker simplifies strength training by automating calculations and progressions for popular GZCL programs. It eliminates the need for spreadsheets, providing a clear interface to log workouts, track stats, and focus on getting stronger.

**Highlights:** Preloaded GZCL programs, Automated progressions, Simple interface, Post workout stats, Exercise images, Support for Imperial/metric units, Rest timer

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GZCL Pro Version | Free | one-time |
| Pro Version | $9.99 | one-time |

**What reviewers like**

- 👍 Straightforward and simple
- 💪 Easy to make gains
- ✨ Clean user interface
- ⚙️ Highly customizable
- ✅ Better than spreadsheets/other apps

**What reviewers complain about**

- 🐛 Doesn't handle progressions/failures
- 🚫 Can't change to kg/units
- 📉 Missing essential features
- ⏳ No maintenance/updates
- 🤷 Missing functionality listed

**Reported bugs**

- Doesn't naturally progress weights
- Doesn't change sets/reps on failure
- Can't change to kg
- Settings menu for units doesn't work
- Progressions don't work

**Requested features**

- Reset everything to defaults
- Alarm to play even if app is closed
- Options to vary plans (heavy vs. cardio)
- Add TM functionality
- Easier exercise substitution options


## Frequently asked questions

### Is 531 Trainer free?

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

### Is GZCL Method Workout Logger free?

GZCL Method Workout Logger is free to download, with in-app purchases available.

### Which has better reviews, 531 Trainer or GZCL Method Workout Logger?

GZCL Method Workout Logger is rated higher. 531 Trainer averages 4.3 out of 5 from 10 ratings, while GZCL Method Workout Logger averages 4.7 from 230 ratings.

### Do 531 Trainer or GZCL Method Workout Logger have ads?

Neither 531 Trainer nor GZCL Method Workout Logger shows ads.

### Which is updated more often, 531 Trainer or GZCL Method Workout Logger?

531 Trainer ships an update fortnightly, and GZCL Method Workout Logger fortnightly. Most recently, 531 Trainer was updated on October 2, 2026 and GZCL Method Workout Logger on October 16, 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.*