Cheeky Fingers is described as 'feature-packed but totally accessible, piano chord dictionary designed for mobile' and is an app in the Audio & Music category. There are four alternatives to Cheeky Fingers for iPad, iPhone, Android and Android Tablet. The best alternative is Perfect Piano, which is free. Other great apps like Cheeky Fingers are Autochords (Free), Perfect Piano Player 3D (Free) and Piano Kit (Paid).
Perfect Piano is a smartphone app designed to teach players how to play and record piano songs of their own using their smartphone. There are many plugins to allow you to change the sound of the piano to things like a guitar, harp, and cello.