Some boats/yachts have anchor alarm on their GPS system. Unfortunately, it is not rare that the integrated GPS system is inaudible from the captain's bed.
With DriftWatch running on your IOS device, you can have it near your bed and be confident that it will warn you if you drift outside of the established boundary.
DriftWatch is the perfect complementary mean that provides peace of mind when anchored.
DriftWatch is simple and easy to use.
