# Flat Earth Pro vs Dirk Kreuter

The clearest difference is price: Dirk Kreuter at Free against Flat Earth Pro's $3.99. Flat Earth Pro's advantage is chart position (#180 vs unranked) and iOS requirement (13.0 vs 16.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Dirk Kreuter is free to download; Flat Earth Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Flat Earth Pro ships an update every 6 weeks, Dirk Kreuter every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Flat Earth Pro | Dirk Kreuter |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.8 (120 ratings)](https://appshunter.io/ios/app/flat-earth-pro/id1664580677/reviews)** | — |
| Number of ratings | **120** | — |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | — |
| Best chart rank | **#180** | — |
| Size | 224 MB | 40 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Othman Alzahrani](https://appshunter.io/developer/1664580679) | [Emily Sudduth](https://appshunter.io/developer/1721274803) |

## What reviewers say

### Flat Earth Pro

[App page](https://appshunter.io/ios/app/flat-earth-pro/id1664580677)

**Currently charting:** #180 Top Paid · Education (US App Store)

Visualize celestial body positions, daylight coverage, and moon phases on an Earth projection. Explore sun and moon overhead positions, rise/set times, and lunar details. Features offline functionality and a local weather forecast.

**Highlights:** Daylight coverage visualization, Sun and moon overhead positions, Rise and set times, Moon phases and libration, Offline functionality, Local weather forecast

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

**In-app purchases:** none


### Dirk Kreuter

[App page](https://appshunter.io/ios/app/dirk-kreuter-community/id6502616563)

**In-app purchases:** none


## Frequently asked questions

### Is Flat Earth Pro free?

Flat Earth Pro costs $3.99, with no in-app purchases.

### Is Dirk Kreuter free?

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

### Do Flat Earth Pro or Dirk Kreuter have ads?

Neither Flat Earth Pro nor Dirk Kreuter shows ads.

### Which is updated more often, Flat Earth Pro or Dirk Kreuter?

Flat Earth Pro ships an update every 6 weeks, and Dirk Kreuter every 3 weeks. Most recently, Flat Earth Pro was updated on November 3, 2026 and Dirk Kreuter on October 25, 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.*