When you purchase the MedEntry UCAT package, you will get numerous resources for you to use. You will also get additional recommended reading in the UCAT Courses. This is definitely much more than you need, if you use it properly. How to efficiently and effectively use these resources is also discussed in the UCAT Courses.
We also recommend that you use the UCAT Consortium's three practice exams (plus the additional 400 questions) that is provided for free on their website.
Apart from these, we do not recommend any other courses or programs. There are some websites spruiking UCAT products which are scams, run by bankrupts etc. They are also likely to mislead you.