# Dive4Diadema vs ProBau Rechner

The clearest difference is in-app purchases: Dive4Diadema at none against ProBau Rechner's 2. Dive4Diadema also leads on device support (3 vs 1) and iOS requirement (11.0 vs 16.6). On price and ads there is nothing between them.

Both are free to download. ProBau Rechner sells 2 in-app purchases, starting at $17.99 per year. Dive4Diadema asks for nothing beyond the download.

## The numbers

| Metric | Dive4Diadema | ProBau Rechner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | — |
| Size | 29 MB | 1 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Code for Nature](https://appshunter.io/developer/1829374322) | [Nocta Dev LLC](https://appshunter.io/developer/1882676946) |

## What reviewers say

### Dive4Diadema

[App page](https://appshunter.io/ios/app/dive4diadema/id6464075724)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProBau Rechner

[App page](https://appshunter.io/ios/app/probau-rechner/id6760566473)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProBau Rechner Pro | $17.99 | per year |
| ProBau Rechner Pro | $44.99 | one-time |


## Frequently asked questions

### Is Dive4Diadema free?

Dive4Diadema is free to download, with no in-app purchases.

### Is ProBau Rechner free?

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

### Do Dive4Diadema or ProBau Rechner have ads?

Neither Dive4Diadema nor ProBau Rechner shows ads.

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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.*