# だこく専科 vs Artemis Collier

The clearest difference is in-app purchases: Artemis Collier at none against だこく専科's 1. Artemis Collier also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (15.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. だこく専科 sells 1 one-off in-app purchase. Artemis Collier asks for nothing beyond the download.

だこく専科 ships an update every 5 months, Artemis Collier every 2 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | だこく専科 | Artemis Collier |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 7 MB | 64 MB |
| Requires iOS | 17.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [YOSHIHIRO TAKAHASHI](https://appshunter.io/developer/574193873) | [PocketSoft](https://appshunter.io/developer/330519572) |

## What reviewers say

### だこく専科

[App page](https://appshunter.io/ios/app/id1546424592)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 試用期限を解除 | $6.99 | one-time |


### Artemis Collier

[App page](https://appshunter.io/ios/app/artemis-collier/id1625521109)

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

**In-app purchases:** none


## Frequently asked questions

### Is だこく専科 free?

だこく専科 is free to download, with in-app purchases available.

### Is Artemis Collier free?

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

### Do だこく専科 or Artemis Collier have ads?

Neither だこく専科 nor Artemis Collier shows ads.

### Which is updated more often, だこく専科 or Artemis Collier?

だこく専科 ships an update every 5 months, and Artemis Collier every 2 weeks. Most recently, だこく専科 was updated on November 3, 2026 and Artemis Collier on November 3, 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.*