# Kozui vs Blink Grid

The clearest difference is in-app purchases: Kozui at none against Blink Grid's 6. Kozui also leads on ads (none vs shown) and device support (3 vs 1). Blink Grid's advantage is update cadence (weekly vs every 3 months). On price there is nothing between them.

Both are free to download. Blink Grid sells 6 one-off in-app purchases. Kozui asks for nothing beyond the download.

Kozui ships an update every 3 months, Blink Grid weekly. The most recent releases landed on September 14, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Kozui | Blink Grid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/kozui/id1378563689/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free | — |
| Size | 23 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sean O'Connor](https://appshunter.io/developer/305324345) | [Lucas Hesseldieck](https://appshunter.io/developer/6788079537) |

## What reviewers say

### Kozui

[App page](https://appshunter.io/ios/app/kozui/id1378563689)

Engage in fast-paced, mind-melting puzzle challenges against a samurai. Test your reflexes and cognitive skills to see how long you can endure the escalating difficulty.

**Highlights:** Fast-paced puzzles, Mind-melting challenges, Samurai opponent, Endurance testing, Cognitive skill development

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

**In-app purchases:** none


### Blink Grid

[App page](https://appshunter.io/ios/app/blink-grid-reflex/id6795242744)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Gems | $1.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Pouch of Gems | $3.99 | one-time |
| Remove Ads | $5.99 | one-time |
| Chest of Gems | $8.99 | one-time |
| Vault of Gems | $17.99 | one-time |


## Frequently asked questions

### Is Kozui free?

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

### Is Blink Grid free?

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

### Do Kozui or Blink Grid have ads?

Blink Grid shows ads; Kozui does not.

### Which is updated more often, Kozui or Blink Grid?

Kozui ships an update every 3 months, and Blink Grid weekly. Most recently, Kozui was updated on September 14, 2026 and Blink Grid on September 20, 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.*