That pc function with shift+space (to play frame by frame) is really useful for replaymaking, and mobile available way isn't really good (basically watching the entire replay and slowing down it to stop on a certain frame). Maybe can be added a toggleable button (should be on options tab i guess) to switch between normal turnframes and one frame by touching the endturn button

Long press the "Ready" button

Thank you sir, haven't see that, sorry