# O.Tech vs AirApp

The clearest difference is update cadence: O.Tech at every 7 months against AirApp's every 14 months. AirApp's advantage is device support. On price, in-app purchases and iOS requirement there is nothing between them.

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

O.Tech ships an update every 7 months, AirApp every 14 months. The most recent releases landed on October 6, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | O.Tech | AirApp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | **Every 7 months** | Every 14 months |
| Size | 13 MB | 13 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EP spa](https://appshunter.io/developer/1688557966) | [Software Felix](https://appshunter.io/developer/1694661782) |

## What reviewers say

### O.Tech

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

**In-app purchases:** none


### AirApp

[App page](https://appshunter.io/ios/app/airapp/id6450785124)

**In-app purchases:** none


## Frequently asked questions

### Is O.Tech free?

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

### Is AirApp free?

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

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

O.Tech ships an update every 7 months, and AirApp every 14 months. Most recently, O.Tech was updated on October 6, 2026 and AirApp on October 8, 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.*