After these 3 weeks with Tweepi I have to admit they have good foundations in place for the app. It's not cheap as I mentioned but I will probably will going for the annual plan since it's good savings and I will be powerusing it for a good while.
Follower count is extremelly high quality (not a convetional F/U) but is also slow AF. It's not a 1K follower method per week, but followers count for x10 compared to other methods. So basically being able to get like 200 per month will be like getting 2K or even more by other methods.
I've also tested with my own account (almost 10K followers, mostly all fake) and the impact is at least x3 better compared to my newly created account with barely 300 followers. In twitter it's extremely weird, but people respect the high follower accounts (social proof) and since I got them almost 6 years ago when buying followers was almost free (I should have gone for the 100K option!). I understand that the algo will be flawed when you post with a huge follow count that won't interact with your twit, but since the algos have been hugely improved, Twitter like FB, just create subgroups within your followers that will keep feeding everytime they interact, so it doesn't matter if you have 100, 1K, 100K or 10M followers: if only 200 or 300 interact with you, this 300 will be the ones that will be constantly feeded with your posts. But from a social proof perspective as I've said it's a MASSIVE difference having 10K followers compared to a less than 1K account. So personally I would recommend to just purchase your first 1K straight away from a twitter follow panel.