I-Sail is described as 'Improve your training and racing directly. Re-experience and analyze your tracks to see what really happened. Invite your peers to do the same and have this great learning experience' and is an app in the Sport & Health category. There are five alternatives to I-Sail for a variety of platforms, including Android, iPhone, Android Tablet, iPad and SaaS. The best alternative is RaceQs, which is free. Other great apps like I-Sail are KWINDOO (Free), ProRegatta (Free), TracTrac (Free) and TackTracker (Free).
Relive your sailing adventures with raceQs' free, 3D, animated race replays. Record one boat or an entire fleet and watch the replay to evaluate your performance in 3D. You don't need any special equipment to get started, just a GPS or a smart phone.
Track your sailing with KWINDOO Tracking, or join organized regatta events worldwide. Use Self tracking for your sailing. Track your sailed route, take photos or videos on your boat directly form the app during the sailing and save them together with your tracking.