I never used medify so can’t recommend or not reccommend.
I’d say MedEntry was very user friendly had a great dashboard so you can track your progress, I also used the skill trainers a lot and that was useful for improving specific skills e.g speed reading, finding words in text and also for syllogisms.
The questions overall were similar to the actual UCAT exam, i have heard MedEntry AR is harder than medify but on the other sections medify is harder. I got 860 in AR and my friend who also used it got 890 so i know it is effective for that section.
Overall its personal preference and it may be worth testing both or potentially using both if you are starting so early, in order to get a mix of questions.
My advice for UCAT would be just do as many questions as you possibly can, dont spend too much time reviewing and redoing questions as you will likely never see them again anyway. Don’t treat it like a normal exam, it’s not like revision, it’s more like a skill/ game and the only way to improve is lots and lots and lots of practice. Also watch Emil Eddy UCAT to see how the best do it and try and adapt some techniques into your own.
Maybe journal ur improvement as seeing that can motivate you to reach your potential.