The only reason to have this app is if you want to check your point balance and dont feel like logging into the website and typing your number and password. The only functionality not available on the website is the ability to set a goal for flight redemption and have it track how far along you have to go, which youll have to weigh whether thats worth anything to you. You can choose whether the app remembers your password, which I initially had turned off, but since you cant actually do anything with this app like redeem points then theres no reason not to leave it on.
The man who never was about Aeroplan