# FuelStack vs Brim

The clearest difference is in-app purchases: FuelStack at none against Brim's 3. FuelStack also leads on iOS requirement (15.1 vs 17.0). Brim's advantage is update cadence (daily vs every 10 months). On price, ads and device support there is nothing between them.

Both are free to download. Brim sells 3 in-app purchases, starting at $4.99 per 7 days. FuelStack asks for nothing beyond the download.

FuelStack ships an update every 10 months, Brim daily. The most recent releases landed on September 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | FuelStack | Brim |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Daily** |
| Size | 33 MB | 21 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Yoann Abriel](https://appshunter.io/developer/1845368848) | [Anastassiya Shugaley](https://appshunter.io/developer/1895809893) |

## What reviewers say

### FuelStack

[App page](https://appshunter.io/ios/app/fuelstack/id6753880979)

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

**In-app purchases:** none


### Brim

[App page](https://appshunter.io/ios/app/brim-creatine-tracker/id6795123559)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brim Pro (Weekly) | $4.99 | per 7 days |
| Brim Pro (Yearly) | $29.99 | per year |
| Brim Pro (Welcome Offer) | $29.99 | per year |


## Frequently asked questions

### Is FuelStack free?

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

### Is Brim free?

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

### Do FuelStack or Brim have ads?

Neither FuelStack nor Brim shows ads.

### Which is updated more often, FuelStack or Brim?

FuelStack ships an update every 10 months, and Brim daily. Most recently, FuelStack was updated on September 7, 2026 and Brim on September 22, 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.*