# Atchoo! vs STap2Go

The clearest difference is price: STap2Go at Free against Atchoo!'s $2.99. STap2Go also leads on update cadence (every 6 weeks vs every 38 months) and device support (3 vs 1). Atchoo!'s advantage is iOS requirement (12.0 vs 15.0). On ads and in-app purchases there is nothing between them.

STap2Go is free to download; Atchoo! costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Atchoo! ships an update every 38 months, STap2Go every 6 weeks. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Atchoo! | STap2Go |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 weeks** |
| Size | 91 MB | 1.4 GB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Asuncion Munoz](https://appshunter.io/developer/1480525311) | [GENETICAI INVESTIGACION Y DESARROLLO SL](https://appshunter.io/developer/1455972917) |

## What reviewers say

### Atchoo!

[App page](https://appshunter.io/ios/app/atchoo/id980936278)

**In-app purchases:** none


### STap2Go

[App page](https://appshunter.io/ios/app/stap2go/id6476549328)

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

**In-app purchases:** none


## Frequently asked questions

### Is Atchoo! free?

Atchoo! costs $2.99, with no in-app purchases.

### Is STap2Go free?

STap2Go is free to download, with no in-app purchases.

### Do Atchoo! or STap2Go have ads?

Neither Atchoo! nor STap2Go shows ads.

### Which is updated more often, Atchoo! or STap2Go?

Atchoo! ships an update every 38 months, and STap2Go every 6 weeks. Most recently, Atchoo! was updated on October 18, 2026 and STap2Go on October 16, 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.*