# StudyArena vs My Size Notes

The clearest difference is in-app purchases: StudyArena at none against My Size Notes's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. My Size Notes sells 1 one-off in-app purchase. StudyArena asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 14, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | StudyArena | My Size Notes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | Monthly |
| Size | 23 MB | 8 MB |
| Requires iOS | 18.5 | **17.6** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yasuhiro Ogawa](https://appshunter.io/developer/1819699862) | [Hikari Mano](https://appshunter.io/developer/1478835190) |

## What reviewers say

### StudyArena

[App page](https://appshunter.io/ios/app/studyarena/id6748235227)

**Features:** macOS Compatibility

**In-app purchases:** none


### My Size Notes

[App page](https://appshunter.io/ios/app/my-size-notes-organize-data/id6753784164)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $2.99 | one-time |


## Frequently asked questions

### Is StudyArena free?

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

### Is My Size Notes free?

My Size Notes is free to download, with in-app purchases available.

### Do StudyArena or My Size Notes have ads?

Both StudyArena and My Size Notes show ads.

### Which is updated more often, StudyArena or My Size Notes?

StudyArena ships an update monthly, and My Size Notes monthly. Most recently, StudyArena was updated on September 14, 2026 and My Size Notes on September 12, 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.*