# Quadrillages vs Atchoo!

The clearest difference is update cadence: Quadrillages at every 5 months against Atchoo!'s every 38 months. Atchoo!'s advantage is price ($2.99 vs $4.99) and iOS requirement (12.0 vs 15.6). On ads, in-app purchases and device support there is nothing between them.

Quadrillages costs $4.99 and Atchoo! $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quadrillages ships an update every 5 months, Atchoo! every 38 months. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Quadrillages | Atchoo! |
| --- | --- | --- |
| Price | $4.99 | **$2.99** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/quadrillages/id449062821/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 38 months |
| Monetization | Paid | — |
| Size | 16 MB | 91 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | **iPad, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [CROMBEZ Emmanuel](https://appshunter.io/developer/375656695) | [Asuncion Munoz](https://appshunter.io/developer/1480525311) |

## What reviewers say

### Quadrillages

[App page](https://appshunter.io/ios/app/quadrillages/id449062821)

This application helps users explore axial and central symmetry through interactive drawing on a grid. It covers Euclidean geometry concepts like points, lines, and angles, and can even be used for fraction initiation by dividing figures.

**Highlights:** Axial and central symmetry exercises, Free drawing for Euclidean geometry, Point, line, and figure drawing, Angle and area calculations, Fraction initiation through division

**Features:** Vision Pro support

**In-app purchases:** none


### Atchoo!

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

**In-app purchases:** none


## Frequently asked questions

### Is Quadrillages free?

Quadrillages costs $4.99, with no in-app purchases.

### Is Atchoo! free?

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

### Do Quadrillages or Atchoo! have ads?

Neither Quadrillages nor Atchoo! shows ads.

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

Quadrillages ships an update every 5 months, and Atchoo! every 38 months. Most recently, Quadrillages was updated on September 18, 2026 and Atchoo! on September 14, 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.*