Although I paid for Simkl lifetime VIP, I’m not sure about the way they treat users. Ability to count rewatches is one of the most (if not the most) requested features, and they have done nothing about it for 8 years. Same with rating episodes - they wrote that it takes database space which increases costs, and yet you can “rate” the episodes with emoji. I really don’t think there’s a difference between counting emojis or stars/numbers/whatever ratings (I may be mistaken here).
I’m not saying that Trakt is better than Simkl or vice versa. I’m just cautioning about Simkl as a savior of the movie and shows scrobbling apps. 
For now, I have paid for both services, and I’m going to see what the future brings, since my Trakt subscription renews in December and is still at 30$ (probably just jinxed it ;)).
Oh, and to be clear - this whole mess with VIP pricing which personally feels like an insult for old VIP users, and also lack of desire to came with solutions like different price tiers for different needs is frustrating.