OLL 44
The algorithm, how to recognise it and how to practise it without cheating.
Recommended algorithm
F U R U' R' F'6 moves
How to recognise it
A P shape: the left column and the back edge, with a full yellow bar on the right side.
Its inverse is another case
Do the 44 algorithm backwards, F R U R' U' F', and you are solving 45.
That's why CubeDojo never scrambles 44 that way: it builds a random state with the case fixed, so you practise 44 and not 45.
Practise 44 now
Random-state scrambles, a timer and spaced review. Free, on the web and on your phone.