Comparison

DMFV vs IPhone2SignalK

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DMFV

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
Read full description

Der Modellflieger ist das Verbandsmagazin des Deutschen Modellflieger Verbands (DMFV). Es erscheint sechsmal jährlich als umfassendes Informations-Medium rund um den Modellflugsport. Neben Berichten zu Test & Technik, Veranstaltungen, Bau- und Flugtipps liefert das Magazin alle Infos zu Europas größter Interessenvertretung für Modellflugsportler. Mit der Buch-Reihe „DMFV Wissen“ gibt der Verband zudem regelmäßig Standardwerke von hohem Informations- und Nutzwert zu aktuellen Themen rund um den Modellflugsport heraus. Auch diese sind in der App erhältlich.

About

IPhone2SignalK

Features
Read full description

iPhone2SignalK turns your iPhone into a navigation and instrument source for Signal K and NMEA — with tracks, anchor watch (including remote) and on-device weather routing. COMPASS & INSTRUMENTS The compass rose runs with compass enabled, even when not sending. Choose heading, pitch, roll and position. SOG is sent by default. Optional ERA, COG and wind (including apparent). Analog instrument with SOG scale and windex; depth and wind from receive even without your own recording. CONNECTIVITY Send and receive data over UDP (Signal K JSON or NMEA), optional NMEA over TCP and HTTP PUT. Multiple destinations, typically port 10110. Tokens in the Keychain. Receive depth and wind from plotter/instruments without sending — or send iPhone GPS and compass to Signal K / OpenPlotter. GPX & TRACKS Record tracks including available boat data (e.g. wind, depth, heading) when received or measured. Waypoints, stats, map replay. OSM, OpenSeaMap, Apple Maps; optional Google tiles (your Map Tiles key) and offline MBTiles (you import — licensing is yours). Optional wind overlay on Tracks (same styles as Routing). ANCHOR WATCH Local watch with alarm circle, persistence, Live Activity and notifications. Optional remote anchor watch on a second Apple device (different Apple ID): master shares via QR (iCloud/CloudKit); follower sees distance and alarm in the background. Control only on the master; both devices need iCloud. WEATHER ROUTING Routing tab: start/destination (optional vias), boat polar, isochrones or Dijkstra — computed locally on the device. Weather from NOAA/OpenGribs/DWD/Open-Meteo; optional SailDocs by email and GRIB import; wind/waves/currents cached separately; optional GEBCO, OSM coastline and inland water. No-go zones and custom land/water zones. After a find: smooth or re-route, depth check. Optional tide curve when tidal range exceeds 1 m. A planning aid — not a chart and not a substitute for navigation. WIDGETS Home Screen widgets for GPX track and anchor watch. NOTES The developer does not collect data. Routing/GEBCO/tide are on-device model data. Allow Location Always for background features. Free, no ads, no in-app purchases. Use at your own risk. HOBBY PROJECT Private hobby project. No warranty. Feedback welcome, with no entitlement to a reply or changes.

Screenshots

DMFV3 screens
IPhone2SignalK4 screens

Verdict

The call

The clearest difference is in-app purchases: IPhone2SignalK at none against DMFV's 30. 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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DMFV sells 30 one-off in-app purchases. IPhone2SignalK asks for nothing beyond the download.

UpkeepUpdate frequency

DMFV ships an update every 6 months, IPhone2SignalK every 2 weeks. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 5 level
DMFV versus IPhone2SignalK: the parameters behind the verdict, then further details
ParameterDMFVIPhone2SignalK
PriceFreeFree
Positive reviews65.0% of reviews—
Update frequencyEvery 6 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better18.0
Further details — not scored
Size160 MB17 MB
Age rating4+4+
DeveloperWellhausen & Marquardt Medienthorsten albers

In-app purchases

30 purchases

DMFV

One-time30
  • Modellflieger Ausgabe 12/2024$0.99
  • Modellflieger Ausgabe 02/2024$0.99
  • Modellflieger Ausgabe 05/2024$0.99
Show 27 more
  • Modellflieger Ausgabe 08/2024$0.99
  • Modellflieger Ausgabe 09/2024$0.99
  • Modellflieger Ausgabe 04/2024$0.99
  • Modellflieger Ausgabe 06/2024$0.99
  • Modellflieger Ausgabe 07/2024$0.99
  • Modellflieger Ausgabe 10/2024$0.99
  • Modellflieger Ausgabe 11/2024$0.99
  • Modellflieger Ausgabe 03/2026$0.99
  • Modellflieger Ausgabe 07/2026$0.99
  • Modellflieger Ausgabe 02/2026$0.99
  • Modellflieger Ausgabe 06/2026$0.99
  • Modellflieger Ausgabe 04/2026$0.99
  • Modellflieger Ausgabe 08/2026$0.99
  • Modellflieger Ausgabe 10/2026$0.99
  • Modellflieger Ausgabe 12/2026$0.99
  • Modellflieger Ausgabe 09/2026$0.99
  • Modellflieger Ausgabe 11/2026$0.99
  • Modellflieger Ausgabe 07/2025$0.99
  • Modellflieger Ausgabe 01/2025$0.99
  • Modellflieger Ausgabe 04/2025$0.99
  • Modellflieger Ausgabe 02/2025$0.99
  • Modellflieger Ausgabe 05/2025$0.99
  • Modellflieger Ausgabe 10/2025$0.99
  • Modellflieger Ausgabe 12/2025$0.99
  • Modellflieger Ausgabe 11/2025$0.99
  • Modellflieger Ausgabe 09/2025$0.99
  • Modellflieger Ausgabe 08/2025$0.99
None

IPhone2SignalK

No in-app purchases

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 October 23, 2026 and IPhone2SignalK on October 31, 2026.

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