# Koob vs Bookmarko

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

Both are free to download. Koob sells 6 in-app purchases, starting at $4.99 per month and Bookmarko sells 3 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Koob ships an update monthly, Bookmarko every 3 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Koob | Bookmarko |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 3 days** |
| Size | 88 MB | 168 MB |
| Requires iOS | 15.5 | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Sebastian Jipa](https://appshunter.io/developer/1879762401) | [Idan Malka](https://appshunter.io/developer/1850807548) |

## What reviewers say

### Koob

[App page](https://appshunter.io/ios/app/koob-book-tracker-and-library/id6759604934)

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Month | $4.99 | per month |
| Premium 6 Months | $24.99 | per 6 months |
| Premium 12 Months | $44.99 | per year |
| Mini | $2.99 | one-time |
| Plus | $6.99 | one-time |
| Max | $14.99 | one-time |


### Bookmarko

[App page](https://appshunter.io/ios/app/bookmarko/id6762641879)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bookmarko Monthly | $7.99 | per month |
| Bookmarko Annual | $79.99 | per year |
| Supporter | $3.99 | one-time |


## Frequently asked questions

### Is Koob free?

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

### Is Bookmarko free?

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

### Do Koob or Bookmarko have ads?

Koob shows ads; Bookmarko does not.

### Which is updated more often, Koob or Bookmarko?

Koob ships an update monthly, and Bookmarko every 3 days. Most recently, Koob was updated on November 5, 2026 and Bookmarko on November 9, 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.*