# GainMatrix vs Sleep Again

The clearest difference is device support: GainMatrix at 3 against Sleep Again's 1. GainMatrix also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. GainMatrix sells 4 in-app purchases, starting at $2.99 per month and Sleep Again sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

GainMatrix ships an update weekly, Sleep Again every 11 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | GainMatrix | Sleep Again |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Size | 64 MB | 13 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Ulas Uzunyayla](https://appshunter.io/developer/1858691953) | [Joakim Achren](https://appshunter.io/developer/1844852970) |

## What reviewers say

### GainMatrix

[App page](https://appshunter.io/ios/app/gainmatrix-ai-workout-tracker/id6756138508)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GainMatrix Pro | $2.99 | per month |
| GainMatrix Pro | $4.99 | per month |
| GainMatrix Pro | $17.99 | per year |
| GainMatrix Pro | $24.99 | per year |


### Sleep Again

[App page](https://appshunter.io/ios/app/sleep-again/id6759914968)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $9.99 | per year |


## Frequently asked questions

### Is GainMatrix free?

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

### Is Sleep Again free?

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

### Do GainMatrix or Sleep Again have ads?

Neither GainMatrix nor Sleep Again shows ads.

### Which is updated more often, GainMatrix or Sleep Again?

GainMatrix ships an update weekly, and Sleep Again every 11 days. Most recently, GainMatrix was updated on October 25, 2026 and Sleep Again on October 28, 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.*