Alright, I think I'm far enough to give an opinion - over 10Qi subs at least. Honestly this is very fun, I really enjoy the slower start so snowballing actually feels rewarding later on. Many games either rush that point or the 'prestige' mechanics end up being pretty weak, but this game really hits the sweet spot for progression and I love that so much.
There really aren't many things I would change, the game does a surprisingly good job with what it offers. Aside from the earlier comment asking for a dark mode, the only things I can think of having trouble with was the new 'currency' you unlock after 1mil subs only showing up on the tab it's used in (which makes sense tbf) but it would be nice to see that amount on the Dashboard under the Total Views or something since early on it was easy to forget about it, although that is a very small issue.
Other than that, it might be a good idea to have the achievements you can miss show up as a code (similar to the 'Yes It Does') in your messages after a certain point. I managed to get 46\47 achievements, currently missing the 'Join an MCN', that showed up earlier and I declined, so I think I might be locked out of that achievement permanently now which is very unfortunate.
But other than those tiny complaints this is an absolutely fantastic incremental game! Thank you for sharing this with us, it's been a pleasure playing it.