# 基本情報技術者試験対策：Steady IT Study vs PenFill

The clearest difference is price: PenFill at Free against 基本情報技術者試験対策：Steady IT Study's $0.99. PenFill also leads on update cadence (daily vs every 4 months). 基本情報技術者試験対策：Steady IT Study's advantage is in-app purchases (none vs 10) and ads (none vs shown).

PenFill is free to download; 基本情報技術者試験対策：Steady IT Study costs $0.99 up front. PenFill sells 10 in-app purchases, starting at $4.99 per month. 基本情報技術者試験対策：Steady IT Study asks for nothing beyond the download.

基本情報技術者試験対策：Steady IT Study ships an update every 4 months, PenFill daily. The most recent releases landed on October 11, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 基本情報技術者試験対策：Steady IT Study | PenFill |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Daily** |
| Size | 312 MB | 41 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [SteadyITStudy](https://appshunter.io/developer/1735443321) | [Sho Handa](https://appshunter.io/developer/1895400851) |

## What reviewers say

### 基本情報技術者試験対策：Steady IT Study

[App page](https://appshunter.io/ios/app/steady-it-study/id6737090112)

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

**In-app purchases:** none


### PenFill

[App page](https://appshunter.io/ios/app/penfill/id6763618010)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 数学モード(月額) | $4.99 | per month |
| ライフ +20 | $0.99 | one-time |
| セーブ数 +3 | $2.99 | one-time |
| ライフ +50 | $2.99 | one-time |
| セーブ数 +7 | $5.99 | one-time |
| ライフ +100 | $5.99 | one-time |
| 広告削除 | $6.99 | one-time |
| ライフ +250 | $11.99 | one-time |
| プレミアムパック | $59.99 | one-time |
| コンプリートパック | $99.99 | one-time |


## Frequently asked questions

### Is 基本情報技術者試験対策：Steady IT Study free?

基本情報技術者試験対策：Steady IT Study costs $0.99, with no in-app purchases.

### Is PenFill free?

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

### Do 基本情報技術者試験対策：Steady IT Study or PenFill have ads?

PenFill shows ads; 基本情報技術者試験対策：Steady IT Study does not.

### Which is updated more often, 基本情報技術者試験対策：Steady IT Study or PenFill?

基本情報技術者試験対策：Steady IT Study ships an update every 4 months, and PenFill daily. Most recently, 基本情報技術者試験対策：Steady IT Study was updated on October 11, 2026 and PenFill on September 24, 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.*