# EssAI vs Sugoku

The clearest difference is ads: EssAI at none against Sugoku's shown. EssAI also leads on iOS requirement (15.1 vs 17.0). Sugoku's advantage is update cadence (every 3 days vs every 6 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. EssAI sells 2 in-app purchases, starting at $22.99 per 3 months and Sugoku sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

EssAI ships an update every 6 weeks, Sugoku every 3 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | EssAI | Sugoku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Every 3 days** |
| Size | 41 MB | 615 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RYUKI KONNAMI](https://appshunter.io/developer/6779120785) | [ryo otsuka](https://appshunter.io/developer/6788628020) |

## What reviewers say

### EssAI

[App page](https://appshunter.io/ios/app/essai/id6782609699)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| シーズンパス（3ヶ月） | $22.99 | per 3 months |
| スタンダード（年額） | $59.99 | per year |


### Sugoku

[App page](https://appshunter.io/ios/app/sugoku-math-practice-drills/id6788627418)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $22.99 | per year |
| プレミアムプラン | $1.99 | one-time |


## Frequently asked questions

### Is EssAI free?

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

### Is Sugoku free?

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

### Do EssAI or Sugoku have ads?

Sugoku shows ads; EssAI does not.

### Which is updated more often, EssAI or Sugoku?

EssAI ships an update every 6 weeks, and Sugoku every 3 days. Most recently, EssAI was updated on October 25, 2026 and Sugoku on October 25, 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.*