# Booktou vs KRIZ

The clearest difference is ads: KRIZ at none against Booktou's shown. Booktou's advantage is update cadence (every 3 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Booktou sells 2 in-app purchases, starting at $3.99 per month and KRIZ sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Booktou ships an update every 3 days, KRIZ every 3 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Booktou | KRIZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 200 MB | 46 MB |
| Requires iOS | 15.5 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [NURULLAH KIRBIZ](https://appshunter.io/developer/6809257691) | [Kateryna Dimitrashko](https://appshunter.io/developer/6797778450) |

## What reviewers say

### Booktou

[App page](https://appshunter.io/ios/app/booktou-book-tracker/id6795242771)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $29.99 | per year |


### KRIZ

[App page](https://appshunter.io/ios/app/kriz-reading-diary/id6797778448)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KRIZ Full | $1.99 | per month |
| KRIZ Full | $17.99 | per year |


## Frequently asked questions

### Is Booktou free?

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

### Is KRIZ free?

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

### Do Booktou or KRIZ have ads?

Booktou shows ads; KRIZ does not.

### Which is updated more often, Booktou or KRIZ?

Booktou ships an update every 3 days, and KRIZ every 3 weeks. Most recently, Booktou was updated on October 7, 2026 and KRIZ 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.*