Subtasks and folding
I'm a rather gloomy Premium user. I was so looking forward to the iPad version of Todoist - and the Android tablet version, too. And what do I find? It appears - maybe I'm missing something really obvious here - that you can't fold subtasks any more. No sign of the little pointy arrows that used to make it so easy to create overviews of multiple projects by simply folding all those subtasks away. Instead, a long, long list of tasks. There's no point to having the subtasks feature at all, in fact.
Am I missing something really basic here?
On the Android app (version 2) there's a 'caret' [^] next to the Project name (in the right 'margin') that (I believe) will do what you're looking for - hides / unhidees the subtasks.
Sorry, I can't speak to the iPad app ...
As Randy said, this is possible on the Android app already and we'll implement it to our iOS app in the future.