# Learn SQL vs Docker道場 − 図で学ぶコンテナ入門

The clearest difference is in-app purchases: Learn SQL at none against Docker道場 − 図で学ぶコンテナ入門's 2. Learn SQL also leads on update cadence (every 5 days vs every 2 weeks) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Docker道場 − 図で学ぶコンテナ入門 sells 2 one-off in-app purchases. Learn SQL asks for nothing beyond the download.

Learn SQL ships an update every 5 days, Docker道場 − 図で学ぶコンテナ入門 every 2 weeks. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Learn SQL | Docker道場 − 図で学ぶコンテナ入門 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 30 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Osamu Nishiyama](https://appshunter.io/developer/1444747231) | [MASAKI TAKEMOTO](https://appshunter.io/developer/6792427282) |

## What reviewers say

### Learn SQL

[App page](https://appshunter.io/ios/app/learn-sql-let-us-sql/id6777298710)

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

**In-app purchases:** none


### Docker道場 − 図で学ぶコンテナ入門

[App page](https://appshunter.io/ios/app/docker/id6792427280)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| レベル5 実務シナリオ編 | $1.99 | one-time |
| 広告非表示 | $2.99 | one-time |


## Frequently asked questions

### Is Learn SQL free?

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

### Is Docker道場 − 図で学ぶコンテナ入門 free?

Docker道場 − 図で学ぶコンテナ入門 is free to download, with in-app purchases available.

### Do Learn SQL or Docker道場 − 図で学ぶコンテナ入門 have ads?

Neither Learn SQL nor Docker道場 − 図で学ぶコンテナ入門 shows ads.

### Which is updated more often, Learn SQL or Docker道場 − 図で学ぶコンテナ入門?

Learn SQL ships an update every 5 days, and Docker道場 − 図で学ぶコンテナ入門 every 2 weeks. Most recently, Learn SQL was updated on October 8, 2026 and Docker道場 − 図で学ぶコンテナ入門 on September 29, 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.*