BridgeBee: An Interactive Beehive Of Bridge Hands
Tricky Bridge: A New Bridge-Playing App
The Bridge Bandit Game
The Ultimate Bridge Game for iPads and iPhones
Ultimate Bridge for Android
Will Bridge App Collection
Bridge God - More than 300 interactive problems, dozens of articles a couple of interactive high level virtual tournaments and all for free.
One Table Duplicate Bridge (OTDB) - A free web app designed to enable 4 players (so, One Table) to play existing duplicate hands face to face, not online.