# CGM U vs O.Tech

The clearest difference is update cadence: CGM U at every 2 months against O.Tech's every 7 months. CGM U also leads on device support and iOS requirement (11.0 vs 15.0). On price and in-app purchases there is nothing between them.

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

CGM U ships an update every 2 months, O.Tech every 7 months. The most recent releases landed on September 30, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | CGM U | O.Tech |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 65 MB | 13 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [CodaQ srl](https://appshunter.io/developer/1178773562) | [EP spa](https://appshunter.io/developer/1688557966) |

## What reviewers say

### CGM U

[App page](https://appshunter.io/ios/app/cgm-u-next/id1519245565)

**Features:** macOS Compatibility

**In-app purchases:** none


### O.Tech

[App page](https://appshunter.io/ios/app/otech/id6449295462)

**In-app purchases:** none


## Frequently asked questions

### Is CGM U free?

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

### Is O.Tech free?

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

### Which is updated more often, CGM U or O.Tech?

CGM U ships an update every 2 months, and O.Tech every 7 months. Most recently, CGM U was updated on September 30, 2026 and O.Tech on October 6, 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.*