Banca
Beautiful and functional currency converter, supports just about any currency in the world.
Main apps
Go Couch to 5k
The most popular starter running program in beautiful feature-rich app (GPS tracking, charts, detailed history etc)
Quickie to do
The fastest short-term task-list / check-list app on the App Store. Really.
Guerrilla Cardio
The most challenging high-impulse interval training in the world.
Run Mate
A versatile running coach app, with unlimited number of running programs. Perfect for casual runners.
Little (fun) apps
Animated Mood Lamp
Animation fun, best to use in a dark room while your iPad/iPhone is charging.
iPhone Light
Handy flashlight app to illuminate dark places and/or send S.O.S signal if you need it.