# DMFV vs IPhone2SignalK

The clearest difference is in-app purchases: IPhone2SignalK at none against DMFV's 40. IPhone2SignalK also leads on update cadence (every 2 weeks vs every 6 months). DMFV's advantage is iOS requirement (14.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. DMFV sells 40 one-off in-app purchases. IPhone2SignalK asks for nothing beyond the download.

DMFV ships an update every 6 months, IPhone2SignalK every 2 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | DMFV | IPhone2SignalK |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 65.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 160 MB | 17 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Wellhausen & Marquardt Medien](https://appshunter.io/developer/592162982) | [thorsten albers](https://appshunter.io/developer/1784529775) |

## What reviewers say

### DMFV

[App page](https://appshunter.io/ios/app/dmfv/id665058965)

This app is the official publication of the German Model Flying Association, offering comprehensive information on model aircraft sports. It features test reports, event coverage, building and flying tips, and details on the association's activities. Additionally, it provides access to the "DMFV Wissen" book series.

**Highlights:** Model flying sports news, Test and technology reports, Event coverage, Building and flying tips, Association information, Access to "DMFV Wissen" books

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

**In-app purchases (40)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Modellflieger Ausgabe 12/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 02/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 05/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 08/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 09/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 04/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 06/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 07/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 10/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 11/2024 | $0.99 | one-time |
| Modellflieger Ausgabe 03/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 04/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 05/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 08/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 06/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 09/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 07/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 10/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 11/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 12/2027 | $0.99 | one-time |
| Modellflieger Ausgabe 03/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 07/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 02/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 06/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 04/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 08/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 10/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 12/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 09/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 11/2026 | $0.99 | one-time |
| Modellflieger Ausgabe 07/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 01/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 04/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 02/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 05/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 10/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 12/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 11/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 09/2025 | $0.99 | one-time |
| Modellflieger Ausgabe 08/2025 | $0.99 | one-time |


### IPhone2SignalK

[App page](https://appshunter.io/ios/app/iphone2signalk/id6760856157)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DMFV free?

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

### Is IPhone2SignalK free?

IPhone2SignalK is free to download, with no in-app purchases.

### Do DMFV or IPhone2SignalK have ads?

Neither DMFV nor IPhone2SignalK shows ads.

### Which is updated more often, DMFV or IPhone2SignalK?

DMFV ships an update every 6 months, and IPhone2SignalK every 2 weeks. Most recently, DMFV was updated on November 1, 2026 and IPhone2SignalK on October 31, 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.*