AngelNav is a brand new app for iOS developed in collaboration with Tom Cunliffe. Primarily it is a full chart plotter currently favouring raster charts, but it has many additional features including the ability to carry out traditional navigation directly on the screen.
The capacity to generate classical chart work is vitally important in the event of a GPS failure, but hitherto has required pencil, plotters, and paper charts. AngelNav allows traditional techniques to be carried out using an iPad or iPhone screen instead of a paper chart. An estimated position can be plotted, position lines drawn from sighted bearings and fixes recorded. Course-to-steer diagrams are readily constructed.
AngelNav can read most types of raster chart including the UKHO subscription charts, as well as KAP/BSB files and GeoTIFF files. Like its sister application for macOS, AngelPilot, it can easily create and read its own satellite charts.
AngelNav can take satellite navigation data from a variety of sources, including the devices stand-alone GPS, the boats NMEA over WiFi, and SignalK. It will also display AIS information if available.
Annual subscriptions are available as in-app purchases for UKHO charts covering the whole of the UK. These are divided into 8 folios so that you can subscribe only to the charts that you need.
The app is free to use in its basic form, with additional functions and charts available as in-app purchases. This allows a user to fully evaluate the app without charge, and then to purchase the features and charts required.
Free features:
Chart plotter (Demo chart included)
Traditional navigation techniques
Waypoints and Routes
Track recording and display
Reads navigational data
Simulation mode
Paid for features (in-app purchases):
Open KAP/BSB files
Open GeoTIFF files
Open Satellite charts
Display AIS targets (if AIS information is available)
Subscription Charts:
Charts of UK coastal waters derived from UKHO data divided into 8 folios
Key features:
Brand new app written from the ground up
Carry out traditional navigation techniques on screen
Free to download to for evaluation, with in-app purchases to add only the features required
Custom keyboard for entry of waypoint latitude and longitude
Subscribe to and display charts derived from UKHO dat
Open KPA/BSB and GeoTIFF files (in-app purchase required)
Create Satellite charts for off line use (in-app purchase required)
Display AIS targets on the chart (in-app purchase required)
NOTE: The continued use of GPS running in the background can dramatically decrease battery life