# Gainz Trakr vs Slab

The clearest difference is in-app purchases: Gainz Trakr at none against Slab's 2. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Slab sells 2 in-app purchases, starting at $5.99 per month. Gainz Trakr asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Gainz Trakr against 5.0 for Slab. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Gainz Trakr ships an update weekly, Slab every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Gainz Trakr | Slab |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/gainz-trakr/id6761737588/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/slab-protein-tracker/id6807515971/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | **Free** | Subscription |
| Size | 8 MB | 9 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Hershkovitz Bros LLC](https://appshunter.io/developer/1736034524) | [One Step Forward Ventures](https://appshunter.io/developer/1895082047) |

## What reviewers say

### Gainz Trakr

[App page](https://appshunter.io/ios/app/gainz-trakr/id6761737588)

Log workouts, track progress, and stay accountable with this strength training companion. It helps you measure performance against past efforts, build reusable templates, and visualize trends to ensure consistent improvement.

**Highlights:** Reusable workout templates, Easy strength training logging, Compete against yourself, Progress and metrics dashboard, Streaks and weekly goals, Apple Health integration, Live Activities and Widgets

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### Slab

[App page](https://appshunter.io/ios/app/slab-protein-tracker/id6807515971)

This app focuses solely on tracking your daily protein intake, visualizing your progress with stacked blocks. It offers quick logging of common foods, barcode scanning, and custom entries, all without displaying calories or other nutritional data. The app emphasizes consistency and streaks, keeping your data private on your device.

**Highlights:** Protein-only tracking, Visual block-based logging, Quick log of frequent foods, Barcode scanning, Custom food entries, Progress streak tracking, Private, on-device data

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $29.99 | per year |


## Frequently asked questions

### Is Gainz Trakr free?

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

### Is Slab free?

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

### Which has better reviews, Gainz Trakr or Slab?

Gainz Trakr and Slab are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Gainz Trakr or Slab have ads?

Neither Gainz Trakr nor Slab shows ads.

### Which is updated more often, Gainz Trakr or Slab?

Gainz Trakr ships an update weekly, and Slab every 4 days. Most recently, Gainz Trakr was updated on October 31, 2026 and Slab on October 31, 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.*