# Kai Sushi vs willis 2025

The clearest difference is in-app purchases: Kai Sushi at none against willis 2025's 2. Kai Sushi also leads on iOS requirement (11.0 vs 15.6). willis 2025's advantage is ads (none vs shown) and update cadence (every 10 days vs every 76 months). On price and device support there is nothing between them.

Both are free to download. willis 2025 sells 2 in-app purchases, starting at $4.99 per 3 months. Kai Sushi asks for nothing beyond the download.

Kai Sushi ships an update every 76 months, willis 2025 every 10 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Kai Sushi | willis 2025 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 76 months | **Every 10 days** |
| Size | 30 MB | 37 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Kai Sushi](https://appshunter.io/developer/1412450591) | [Sascha Wilstermann](https://appshunter.io/developer/1712000820) |

## What reviewers say

### Kai Sushi

[App page](https://appshunter.io/ios/app/kai-sushi/id1412450592)

**Features:** macOS Compatibility

**In-app purchases:** none


### willis 2025

[App page](https://appshunter.io/ios/app/willis-2025/id6447472709)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze | $4.99 | per 3 months |
| Gold | $14.99 | per year |


## Frequently asked questions

### Is Kai Sushi free?

Kai Sushi is free to download, with no in-app purchases.

### Is willis 2025 free?

willis 2025 is free to download, with in-app purchases available.

### Do Kai Sushi or willis 2025 have ads?

Kai Sushi shows ads; willis 2025 does not.

### Which is updated more often, Kai Sushi or willis 2025?

Kai Sushi ships an update every 76 months, and willis 2025 every 10 days. Most recently, Kai Sushi was updated on October 7, 2026 and willis 2025 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.*