# BookStash vs KRIZ

The clearest difference is update cadence: BookStash at every 3 days against KRIZ's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BookStash ships an update every 3 days, KRIZ fortnightly. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | BookStash | KRIZ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Size | 54 MB | 46 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yulian Lozynskyi](https://appshunter.io/developer/1880092529) | [Kateryna Dimitrashko](https://appshunter.io/developer/6797778450) |

## What reviewers say

### BookStash

[App page](https://appshunter.io/ios/app/bookstash/id6759670163)

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

**In-app purchases:** none


### KRIZ

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

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

**In-app purchases:** none


## Frequently asked questions

### Is BookStash free?

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

### Is KRIZ free?

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

### Do BookStash or KRIZ have ads?

Neither BookStash nor KRIZ shows ads.

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

BookStash ships an update every 3 days, and KRIZ fortnightly. Most recently, BookStash was updated on October 15, 2026 and KRIZ on October 4, 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.*