Signal Flags is the complete reference to International Maritime Signal Flags. The perfect companion to any boating trip. Whether sailing or power boating there's no reason to make decisions without all the information available, Signal Flags for iPhone & iTouch gives you the data you need to decode or encode any signalled message.
The system of international maritime signal flags is a way of representing individual letters of the alphabet in signals to or from ships. It is a component of the International Code of Signals (INTERCO).