# Prebook vs Douvo

The clearest difference is update cadence: Prebook at every 2 weeks against Douvo's monthly. 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.

Prebook ships an update every 2 weeks, Douvo monthly. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Prebook | Douvo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Size | 3 MB | 55 MB |
| Requires iOS | **15.7** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Evalest Ltd](https://appshunter.io/developer/1778861077) | [VALERI SAMPATZE](https://appshunter.io/developer/1838399287) |

## What reviewers say

### Prebook

[App page](https://appshunter.io/ios/app/prebook/id6738008216)

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

**In-app purchases:** none


### Douvo

[App page](https://appshunter.io/ios/app/douvo/id6796952064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Prebook free?

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

### Is Douvo free?

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

### Do Prebook or Douvo have ads?

Neither Prebook nor Douvo shows ads.

### Which is updated more often, Prebook or Douvo?

Prebook ships an update every 2 weeks, and Douvo monthly. Most recently, Prebook was updated on October 10, 2026 and Douvo on October 12, 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.*