# わかる！算数 小学４年【下】 vs Compass Note

The clearest difference is price: Compass Note at $2.99 against わかる！算数 小学４年【下】's $9.99. わかる！算数 小学４年【下】's advantage is iOS requirement (15.0 vs 17.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

わかる！算数 小学４年【下】 costs $9.99 and Compass Note $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

わかる！算数 小学４年【下】 ships an update every 37 months, Compass Note every 28 months. The most recent releases landed on September 29, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | わかる！算数 小学４年【下】 | Compass Note |
| --- | --- | --- |
| Price | $9.99 | **$2.99** |
| 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 37 months | **Every 28 months** |
| Monetization | — | Paid |
| Size | 58 MB | 16 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [がくげい](https://appshunter.io/developer/415230275) | [Kouichi INAFUKU](https://appshunter.io/developer/438372899) |

## What reviewers say

### わかる！算数 小学４年【下】

[App page](https://appshunter.io/ios/app/id897331650)

**In-app purchases:** none


### 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


## Frequently asked questions

### Is わかる！算数 小学４年【下】 free?

わかる！算数 小学４年【下】 costs $9.99, with no in-app purchases.

### Is Compass Note free?

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

### Do わかる！算数 小学４年【下】 or Compass Note have ads?

Neither わかる！算数 小学４年【下】 nor Compass Note shows ads.

### Which is updated more often, わかる！算数 小学４年【下】 or Compass Note?

わかる！算数 小学４年【下】 ships an update every 37 months, and Compass Note every 28 months. Most recently, わかる！算数 小学４年【下】 was updated on September 29, 2026 and Compass Note 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.*