# Arithmetic Quilts vs Earth Rotation

The clearest difference is price: Arithmetic Quilts at Free against Earth Rotation's $0.99. Arithmetic Quilts also leads on ratings volume (3 vs 1) and iOS requirement (8.0 vs 15.0). Earth Rotation's advantage is rating (5.0 vs 4.3) and device support (3 vs 1). On update cadence, ads and in-app purchases there is nothing between them.

Arithmetic Quilts is free to download; Earth Rotation costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Earth Rotation holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Arithmetic Quilts ships an update every 14 months, Earth Rotation every 22 months. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Arithmetic Quilts | Earth Rotation |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/arithmetic-quilts/id567300241/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/earth-rotation/id1610455878/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 22 months |
| Monetization | **Free** | Paid |
| Size | 34 MB | 46 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Thomas Bretl](https://appshunter.io/developer/553850818) | [Masahiro Tomosada](https://appshunter.io/developer/1587710118) |

## What reviewers say

### Arithmetic Quilts

[App page](https://appshunter.io/ios/app/arithmetic-quilts/id567300241)

Explore the visual beauty of mathematical patterns through colorful quilt designs. This app transforms arithmetic and modular arithmetic tables into artistic creations, making abstract concepts tangible and engaging.

**Highlights:** Visualizes addition and multiplication tables, Assigns colors to numbers for pattern discovery, Explores modular arithmetic patterns, Creates quilts from recursive processes, Combines math and art

**Features:** macOS Compatibility

**In-app purchases:** none


### Earth Rotation

[App page](https://appshunter.io/ios/app/earth-rotation/id1610455878)

Explore a 3D simulation of celestial bodies. Adjust rotation speeds, reverse direction, and alter lighting angles. Choose from three distinct Earth visual styles for an interactive learning experience.

**Highlights:** Adjustable rotation speed, Reverse rotation direction, Adjustable sun lighting angle, Three Earth visual styles, 3D celestial animation

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

**In-app purchases:** none


## Frequently asked questions

### Is Arithmetic Quilts free?

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

### Is Earth Rotation free?

Earth Rotation costs $0.99, with no in-app purchases.

### Which has better reviews, Arithmetic Quilts or Earth Rotation?

Earth Rotation is rated higher. Arithmetic Quilts averages 4.3 out of 5 from 3 ratings, while Earth Rotation averages 5.0 from 1 ratings.

### Do Arithmetic Quilts or Earth Rotation have ads?

Neither Arithmetic Quilts nor Earth Rotation shows ads.

### Which is updated more often, Arithmetic Quilts or Earth Rotation?

Arithmetic Quilts ships an update every 14 months, and Earth Rotation every 22 months. Most recently, Arithmetic Quilts was updated on October 23, 2026 and Earth Rotation 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.*