I have made iPhone/iPad app for exercising recognition of intervals using melody-interval association method.
Described in details here:http://en.wikipedia.org/wiki/Interval_recognition
https://itunes.apple.com/us/app/ear-training-musical-interval/id948194155?ls=1&mt=8
Described in details here:http://en.wikipedia.org/wiki/Interval_recognition
https://itunes.apple.com/us/app/ear-training-musical-interval/id948194155?ls=1&mt=8