# GainMatrix vs SimpleStep

The clearest difference is price: GainMatrix at Free against SimpleStep's $0.99. GainMatrix also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). SimpleStep's advantage is in-app purchases (none vs 4). On update cadence and ads there is nothing between them.

GainMatrix is free to download; SimpleStep costs $0.99 up front. GainMatrix sells 4 in-app purchases, starting at $2.99 per month. SimpleStep asks for nothing beyond the download.

GainMatrix ships an update weekly, SimpleStep every 5 days. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | GainMatrix | SimpleStep |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Monetization | — | Paid |
| Size | 64 MB | 1 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Ulas Uzunyayla](https://appshunter.io/developer/1858691953) | [Hiroyuki Yagi](https://appshunter.io/developer/6805959127) |

## 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 |


### SimpleStep

[App page](https://appshunter.io/ios/app/simplestep-step-counter/id6806893230)

Track your daily steps, distance, and goal progress with this straightforward iPhone pedometer. View historical activity through daily, weekly, monthly, and yearly charts. Enjoy a clean, ad-free experience with no account required.

**Highlights:** Step, distance, and goal tracking, Daily, weekly, monthly, yearly charts, Customizable daily step goal, App icon badge for steps, Light/dark/system appearance options, Accent and app icon color choices

**In-app purchases:** none


## Frequently asked questions

### Is GainMatrix free?

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

### Is SimpleStep free?

SimpleStep costs $0.99, with no in-app purchases.

### Do GainMatrix or SimpleStep have ads?

Neither GainMatrix nor SimpleStep shows ads.

### Which is updated more often, GainMatrix or SimpleStep?

GainMatrix ships an update weekly, and SimpleStep every 5 days. Most recently, GainMatrix was updated on October 4, 2026 and SimpleStep on September 27, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*