Simply Piano is a fast and fun way to learn piano, from beginner to pro. Works with any piano or keyboard. Chosen as one of Google Play’s Best Apps of 2019. Join the existing one million learners a week who are mastering a keyboard this way.
The first two courses are free, after that it costs £83.99 a year, which is expensive for an app, but not not as expensive as piano lessons, and if you’re worried about forgetting all you every learned before the Coronavirus emergency is over, this would be a good way to keep your hand in.