BidTrainer

The app allows you to learn the rules of the bidding part of the card game bridge. The user can practice 10 different concepts

The app has the following features

• The user can practice concepts like, Stayman and transfers, overcalls and takeout doubles, negative doubles and slam bidding
• At the end of each lesson, you get an overview how you have done
• The user can choose different playing card sets
• If the user picks a username, the scores are uploaded to a leaderboard
• The user gets feedback if done something wrong