# Oshitaku Train vs Professor Ary

The clearest difference is in-app purchases: Oshitaku Train at none against Professor Ary's 2. Oshitaku Train also leads on update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Professor Ary sells 2 in-app purchases, starting at $7.99 per month. Oshitaku Train asks for nothing beyond the download.

Oshitaku Train ships an update every 2 days, Professor Ary every 2 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Oshitaku Train | Professor Ary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 5 MB | 62 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kanae Tani](https://appshunter.io/developer/6781730782) | [Maria Victoria Vergaray Moran](https://appshunter.io/developer/1808298206) |

## What reviewers say

### Oshitaku Train

[App page](https://appshunter.io/ios/app/oshitaku-train/id6782124492)

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

**In-app purchases:** none


### Professor Ary

[App page](https://appshunter.io/ios/app/professor-ary-visual-routine/id6806608263)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Routines+ Monthly | $7.99 | per month |
| Routines+ Annual | $39.99 | per year |


## Frequently asked questions

### Is Oshitaku Train free?

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

### Is Professor Ary free?

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

### Do Oshitaku Train or Professor Ary have ads?

Neither Oshitaku Train nor Professor Ary shows ads.

### Which is updated more often, Oshitaku Train or Professor Ary?

Oshitaku Train ships an update every 2 days, and Professor Ary every 2 weeks. Most recently, Oshitaku Train was updated on October 8, 2026 and Professor Ary on October 11, 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.*