# GS Chems vs Mentora

The clearest difference is update cadence: Mentora at every 3 weeks against GS Chems's every 12 months. 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.

GS Chems ships an update every 12 months, Mentora every 3 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | GS Chems | Mentora |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Size | 69 MB | 125 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ed-All](https://appshunter.io/developer/1541912727) | [Mentora groupe](https://appshunter.io/developer/1874934354) |

## What reviewers say

### GS Chems

[App page](https://appshunter.io/ios/app/gs-chems/id6751491668)

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

**In-app purchases:** none


### Mentora

[App page](https://appshunter.io/ios/app/mentora/id6758777880)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GS Chems free?

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

### Is Mentora free?

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

### Do GS Chems or Mentora have ads?

Neither GS Chems nor Mentora shows ads.

### Which is updated more often, GS Chems or Mentora?

GS Chems ships an update every 12 months, and Mentora every 3 weeks. Most recently, GS Chems was updated on October 6, 2026 and Mentora on October 7, 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.*