Anchor Basic vs qtVlm Usage & Stats
A fully functional anchor alarm designed for iPhone & iPad.
- Simple and reliable with user selectable units, drift warning and low battery alarms.
- Pause the alarm and take your device with you; simply continue drift monitoring when you return.
- Set the anchor at the current location or a bearing & distance to the anchor.
- Use Anchor Basic to remotely monitor Anchor Plus. Go ashore for dinner and monitor your friends Anchor Plus alarm using Anchor Basic.
- If you like this free version, try Anchor Plus with a host of additional features
- Apple App Store
- Free
- Navigation
Store Rank
- -
qtVlm is a navigation software for Sailing Boats. The application has a free version with basic features and a full version available through in-app purchase.
The free version of qtVlm is a full grib viewer displaying all types of gribs and providing many advanced grib functions. It supports basics charts and some simple instruments. It includes also an Anchor Alarm module, a viewer for shapefiles, for instance those coming from SHOM, and can be configured to receive boat position either from internal GPS or from an external NMEA source connected through tcp, udp or gpsd.
The full version adds many functions and features:
- Weather routing and route modules,
- A complete set of navigation Instruments,
- Charts modules for Raster charts, Vector charts (S57, S63 and CM93) and mbtiles,
- Support for Harmonic files (tides and currents),
- Iridium GO! communication
- AIS,
- Start line mode,
- Access to Great Circle gribs,
qtVlm can also be used in Simulation Mode, which allows you to simulate a navigation through our server. This is the best way to learn using qtVlm.
Once activated the full version will be available on all your iOS devices.
- Apple App Store
- Free
- Navigation
Store Rank
- -
Anchor Basic VS. 
qtVlmJanuary 3, 2025