# ST50i vs MeMstar

The clearest difference is update cadence: ST50i at every 4 months against MeMstar's every 9 months. ST50i also leads on iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ST50i ships an update every 4 months, MeMstar every 9 months. The most recent releases landed on May 15, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | ST50i | MeMstar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Size | 2 MB | 25 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [STIM](https://appshunter.io/developer/409841037) | [Mickael Pannequin](https://appshunter.io/developer/1688387073) |

## What reviewers say

### ST50i

[App page](https://appshunter.io/ios/app/st50i/id409841034)

**Features:** macOS Compatibility

**In-app purchases:** none


### MeMstar

[App page](https://appshunter.io/ios/app/memstar/id6449255656)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ST50i free?

ST50i is free to download, with no in-app purchases.

### Is MeMstar free?

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

### Do ST50i or MeMstar have ads?

Neither ST50i nor MeMstar shows ads.

### Which is updated more often, ST50i or MeMstar?

ST50i ships an update every 4 months, and MeMstar every 9 months. Most recently, ST50i was updated on May 15, 2026 and MeMstar on September 11, 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.*