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