# コアラーニング Mgr vs Shikirei

The clearest difference is in-app purchases: コアラーニング Mgr at none against Shikirei's 1. コアラーニング Mgr also leads on iOS requirement (15.6 vs 17.0). Shikirei's advantage is update cadence (every 2 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Shikirei sells 1 one-off in-app purchase. コアラーニング Mgr asks for nothing beyond the download.

コアラーニング Mgr ships an update every 3 weeks, Shikirei every 2 days. The most recent releases landed on October 30, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | コアラーニング Mgr | Shikirei |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 46 MB | 103 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Morrow World Inc.](https://appshunter.io/developer/1552662827) | [SNAPLACE](https://appshunter.io/developer/6790258232) |

## What reviewers say

### コアラーニング Mgr

[App page](https://appshunter.io/ios/app/mgr/id6751836178)

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

**In-app purchases:** none


### Shikirei

[App page](https://appshunter.io/ios/app/shikirei-math-formula-puzzle/id6802468634)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all layers | $2.99 | one-time |


## Frequently asked questions

### Is コアラーニング Mgr free?

コアラーニング Mgr is free to download, with no in-app purchases.

### Is Shikirei free?

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

### Do コアラーニング Mgr or Shikirei have ads?

Neither コアラーニング Mgr nor Shikirei shows ads.

### Which is updated more often, コアラーニング Mgr or Shikirei?

コアラーニング Mgr ships an update every 3 weeks, and Shikirei every 2 days. Most recently, コアラーニング Mgr was updated on October 30, 2026 and Shikirei on November 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.*