# BUILDUP.bautagebuch vs +Doku

The clearest difference is iOS requirement: +Doku at 10.3 against BUILDUP.bautagebuch's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

BUILDUP.bautagebuch ships an update every 3 months, +Doku every 2 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | BUILDUP.bautagebuch | +Doku |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 31 MB | 54 MB |
| Requires iOS | 15.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BauerSoftware GmbH](https://appshunter.io/developer/1495786502) | [X-Interchange GmbH](https://appshunter.io/developer/1438909423) |

## What reviewers say

### BUILDUP.bautagebuch

[App page](https://appshunter.io/ios/app/buildupbautagebuch/id1356508982)

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

**In-app purchases:** none


### +Doku

[App page](https://appshunter.io/ios/app/plus-doku/id1438911531)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BUILDUP.bautagebuch free?

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

### Is +Doku free?

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

### Do BUILDUP.bautagebuch or +Doku have ads?

Neither BUILDUP.bautagebuch nor +Doku shows ads.

### Which is updated more often, BUILDUP.bautagebuch or +Doku?

BUILDUP.bautagebuch ships an update every 3 months, and +Doku every 2 months. Most recently, BUILDUP.bautagebuch was updated on November 6, 2026 and +Doku on November 2, 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.*