# TrainersKit vs SZ Track

The clearest difference is in-app purchases: SZ Track at none against TrainersKit's 5. SZ Track also leads on iOS requirement (15.0 vs 17.0). TrainersKit's advantage is update cadence (every 9 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. TrainersKit sells 5 in-app purchases, starting at $2.99 per month. SZ Track asks for nothing beyond the download.

TrainersKit ships an update every 9 days, SZ Track monthly. The most recent releases landed on August 2, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | TrainersKit | SZ Track |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/trainerskit-client-tracker/id6446181545/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 9 days** | Monthly |
| Monetization | Freemium | — |
| Size | 22 MB | 133 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Mahmoud Ashraf](https://appshunter.io/developer/1457729983) | [Brandon Criss](https://appshunter.io/developer/1787120070) |

## What reviewers say

### TrainersKit

[App page](https://appshunter.io/ios/app/trainerskit-client-tracker/id6446181545)

Easily track client body composition, including weight, fat percentage, and muscle mass. Visualize progress with interactive charts and add progress pictures for a clear visual representation of physical changes. Securely back up and export client data.

**Highlights:** Client body composition tracking, Interactive progress charts, Progress picture uploads, Data backup and export, Fitness goal achievement tools

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TrainersKit Pro (Monthly) | $2.99 | per month |
| TrainersKit Pro | $4.99 | per month |
| TrainersKit Pro (Annual) | $24.99 | per year |
| TrainersKit Pro | $49.99 | per year |
| Lifetime Pro | $49.99 | one-time |


### SZ Track

[App page](https://appshunter.io/ios/app/sz-track/id6739803445)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TrainersKit free?

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

### Is SZ Track free?

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

### Do TrainersKit or SZ Track have ads?

Neither TrainersKit nor SZ Track shows ads.

### Which is updated more often, TrainersKit or SZ Track?

TrainersKit ships an update every 9 days, and SZ Track monthly. Most recently, TrainersKit was updated on August 2, 2026 and SZ Track on September 12, 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.*