# 片手キーボードPRO vs CalcMemo929

The clearest difference is price: CalcMemo929 at Free against 片手キーボードPRO's $3.99. CalcMemo929 also leads on update cadence (every 2 weeks vs every 3 months). 片手キーボードPRO's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

CalcMemo929 is free to download; 片手キーボードPRO costs $3.99 up front. CalcMemo929 sells 1 one-off in-app purchase. 片手キーボードPRO asks for nothing beyond the download.

片手キーボードPRO ships an update every 3 months, CalcMemo929 every 2 weeks. The most recent releases landed on September 22, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 片手キーボードPRO | CalcMemo929 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 112 MB | 1 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [TAWASHI KAMEMUSHI](https://appshunter.io/developer/435733426) | [YOSHIHIRO TAKAHASHI](https://appshunter.io/developer/574193873) |

## What reviewers say

### 片手キーボードPRO

[App page](https://appshunter.io/ios/app/pro/id1021368752)

**Features:** Vision Pro support

**In-app purchases:** none


### CalcMemo929

[App page](https://appshunter.io/ios/app/calcmemo929/id6451918962)

This app combines a simple calculator with note-taking capabilities, allowing users to solve math problems and save calculation processes as memos for easy reference. Its user-friendly interface and clear display enhance the learning and work experience.

**Highlights:** Intuitive user interface, Clear display of calculations, Save calculations as memos, Full-screen number display in landscape, Supports learning and work tasks

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $0.49 | one-time |


## Frequently asked questions

### Is 片手キーボードPRO free?

片手キーボードPRO costs $3.99, with no in-app purchases.

### Is CalcMemo929 free?

CalcMemo929 is free to download, with in-app purchases available.

### Do 片手キーボードPRO or CalcMemo929 have ads?

Neither 片手キーボードPRO nor CalcMemo929 shows ads.

### Which is updated more often, 片手キーボードPRO or CalcMemo929?

片手キーボードPRO ships an update every 3 months, and CalcMemo929 every 2 weeks. Most recently, 片手キーボードPRO was updated on September 22, 2026 and CalcMemo929 on September 17, 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.*