# Whats vs bookman

The clearest difference is in-app purchases: bookman at none against Whats's 1. bookman also leads on device support (3 vs 1) and iOS requirement (12.2 vs 16.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Whats sells 1 one-off in-app purchase. bookman asks for nothing beyond the download.

Whats ships an update every 3 weeks, bookman every 6 weeks. The most recent releases landed on October 25, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Whats | bookman |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Size | 20 MB | 156 MB |
| Requires iOS | 16.0 | **12.2** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Florian Kalek](https://appshunter.io/developer/1628351056) | [bookman Solutions GmbH](https://appshunter.io/developer/1580744796) |

## What reviewers say

### Whats

[App page](https://appshunter.io/ios/app/whats-left/id1628351054)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Whats-Left Premium | $1.99 | one-time |


### bookman

[App page](https://appshunter.io/ios/app/bookman/id1637803258)

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

**In-app purchases:** none


## Frequently asked questions

### Is Whats free?

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

### Is bookman free?

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

### Do Whats or bookman have ads?

Neither Whats nor bookman shows ads.

### Which is updated more often, Whats or bookman?

Whats ships an update every 3 weeks, and bookman every 6 weeks. Most recently, Whats was updated on October 25, 2026 and bookman on October 10, 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.*