Scuba Exam is ideal for novice divers who are working to pass their certification tests. This free app provides a dictionary of diving terms and a short, entertaining history on diving, but its main feature is a practice quiz about best diving practices. (iOS and Android)
Dive Log helps you keep a detailed history of your diving adventures. The app makes it easy to plug in the duration, depth, and location of each dive, as well as to track your friends’ histories. ($12, iOS)
Marine Tides Planner (iOS) and Tides & Currents (Android) are free apps that provide predictions about tides, currents, and weather for locations around the world.
iDive Nitrox ($2, iOS) and Nitrox Calculator (Free, Android) help you calculate the best blend of nitrogen and oxygen to use for the dive you’re about to make.
Source: The New York Times