# SmaTan vs 大人のやる気ペン

The clearest difference is in-app purchases: SmaTan at none against 大人のやる気ペン's 10. SmaTan also leads on review sentiment (38% vs 9%) and iOS requirement (11.0 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 大人のやる気ペン sells 10 one-off in-app purchases. SmaTan asks for nothing beyond the download.

SmaTan ships an update every 2 months, 大人のやる気ペン every 3 weeks. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | SmaTan | 大人のやる気ペン |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/smatan/id1014399736/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **38.0% of reviews** | 9.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 54 MB | 984 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pentel Co.,Ltd.](https://appshunter.io/developer/517890440) | [KOKUYO CO., LTD.](https://appshunter.io/developer/1068141364) |

## What reviewers say

### SmaTan

[App page](https://appshunter.io/ios/app/smatan/id1014399736)

This app combines the benefits of handwriting and digital tools for vocabulary learning. Capture paired English and Japanese words by photographing a notebook page, then use interactive flashcards for efficient memorization. Master difficult words through targeted repetition.

**Highlights:** Handwritten note digitization, Automatic card creation from photos, Interactive flashcard interface, Answer reveal by tapping, Spaced repetition learning, Targeted review of weak words

**Features:** macOS Compatibility

**In-app purchases:** none


### 大人のやる気ペン

[App page](https://appshunter.io/ios/app/id6737018651)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 人工衛星　グレー | $2.99 | one-time |
| 勇者の装備 金 | $2.99 | one-time |
| ニンジン 橙 | $2.99 | one-time |
| 勇者の冠 金 | $2.99 | one-time |
| 宇宙ヘルメット グレー | $2.99 | one-time |
| ウサギの耳 白 | $2.99 | one-time |
| 名誉のキズ 銀 | $2.99 | one-time |
| 宇宙服ポット 白 | $2.99 | one-time |
| セーターポット 白 | $2.99 | one-time |
| 勇者の鎧ポット グレー | $2.99 | one-time |


## Frequently asked questions

### Is SmaTan free?

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

### Is 大人のやる気ペン free?

大人のやる気ペン is free to download, with in-app purchases available.

### Do SmaTan or 大人のやる気ペン have ads?

Neither SmaTan nor 大人のやる気ペン shows ads.

### Which is updated more often, SmaTan or 大人のやる気ペン?

SmaTan ships an update every 2 months, and 大人のやる気ペン every 3 weeks. Most recently, SmaTan was updated on November 6, 2026 and 大人のやる気ペン on November 4, 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.*