# IPhone2SignalK — Kompass, GPX & Ankerwache

> Kompass, GPX & Ankerwache (iPhone/iPad app by thorsten albers.)

- Source: https://appshunter.io/ios/app/iphone2signalk/id6760856157 (this page in markdown: same URL + `.md`)
- Developer: [thorsten albers](https://appshunter.io/developer/1784529775)
- Category: News, Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 18.0 · 17 MB
- Languages: American English, German (Germany)
- Released: 2026-08-22
- Data updated: 2026-10-24

## What is IPhone2SignalK?

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.

## Is IPhone2SignalK safe?

Not enough ratings yet to assess IPhone2SignalK.

## Is IPhone2SignalK legit?

IPhone2SignalK has limited verification signals. The AppsHunter Legitimacy Score for IPhone2SignalK is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.9 — 2026-10-10

• Routing tab: on-device weather routing (isochrones/Dijkstra) with boat polars
• Weather from NOAA / OpenGribs / DWD / Open-Meteo; optional SailDocs email, GRIB import, Copernicus currents and GEBCO
• OSM coastline/inland water, no-go zones and custom land/water zones; wind overlay; saved routes; cancel calculation
• Clear messages when no route is found; optional tide curve when tidal range > 1 m
• Tracks: wind overlay like Routing; recording includes boat data (wind, depth, …)
• Boat profile/polar in Settings; help and credits updated

### 1.7 — 2026-09-24

• Analog instrument: SOG scale 20/40/60/100 kn, compass card with lubber on top, depth and apparent wind beside the gauge • Green windex between the rings, arrow toward the boat, damped against wave motion • Anchor watch: one-off GPS jumps are ignored — including positions from NMEA or Signal K • Optional two alarm sectors (orange/teal); start angle by map tap or N/E/S/W • Clear the anchor track; zoom down to 300 m • Receive NMEA over UDP or TCP without sending; depth and wind in readings without starting a recording • Sending only when Signal K sending is on, independent of GPX • GPX replay sends only after confirmation (default: map only); depth is stored in GPX • Incoming stream viewer in Connection settings to check NMEA and Signal K

### 1.6 — 2026-09-03

• Tracks: 2D/3D and North/Course when centering the boat; zoom 100 m–100 km
• Offline MBTiles: smooth zoom beyond stored tile levels
• GPX replay on the map even without Signal K; scrub, pause and resume
• Map cache, MBTiles and Google key under Settings → Maps & Tracks
• Offline maps: licensing and rights are yours; the developer does not supply charts

### 1.5 — 2026-08-29

For users upgrading from 1.0:

• Remote anchor watch via QR/iCloud (master/follower, alarm in background too)
• Live Activity on Lock Screen / Dynamic Island (can be turned on or off)
• Offline MBTiles maps; Tracks zoom slider and clearer UX
• ERA, COG and wind (including apparent) on the compass rose
• Incoming: NMEA UDP and Signal K stream; GPS source with iPhone fallback
• GPX: stats, multi-day selection, Apple Maps, restore after quit/crash
• Home Screen widgets for track and anchor watch
• Stability: NMEA port fix, remote background, clearer Send/Incoming settings

### 1.0 — 2026-08-22

No release notes.

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## More apps by thorsten albers

- [AstroNights](https://appshunter.io/ios/app/astronights/id6808184958)

All apps by thorsten albers: https://appshunter.io/developer/1784529775

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*