# Compass Note vs Abaculator

The clearest difference is price: Abaculator at Free against Compass Note's $2.99. Abaculator also leads on device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On update cadence, ads and in-app purchases there is nothing between them.

Abaculator is free to download; Compass Note costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Compass Note ships an update every 28 months, Abaculator every 35 months. The most recent releases landed on October 16, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Compass Note | Abaculator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/compass-note-draw-circle/id1257452684/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 28 months** | Every 35 months |
| Monetization | Paid | — |
| Size | 16 MB | 45 MB |
| Requires iOS | 17.6 | **15.6** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) | [Chi-Cheng Liao](https://appshunter.io/developer/1053803113) |

## What reviewers say

### Compass Note

[App page](https://appshunter.io/ios/app/compass-note-draw-circle/id1257452684)

This app allows users to draw circles and other shapes using a digital compass. You can color your creations, load example models, and adjust the grid paper size for precise drawing.

**Highlights:** Draw circles with digital compass, Color created shapes, Load model examples, Change grid paper size

**In-app purchases:** none


### Abaculator

[App page](https://appshunter.io/ios/app/abaculator/id1634634260)

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

**In-app purchases:** none


## Frequently asked questions

### Is Compass Note free?

Compass Note costs $2.99, with no in-app purchases.

### Is Abaculator free?

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

### Do Compass Note or Abaculator have ads?

Neither Compass Note nor Abaculator shows ads.

### Which is updated more often, Compass Note or Abaculator?

Compass Note ships an update every 28 months, and Abaculator every 35 months. Most recently, Compass Note was updated on October 16, 2026 and Abaculator on October 22, 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.*