First of all, there are no other services like this.
We were the first, who provided such a user friendly solution for receiving EPG in 2016, and a few websites try to copy us ever since (some of them do it literally), but they fail, because of their lack of dedication and of willingness to invest into their infrastructure.
None the less, our service is the most sophisticated and most up-to-date EPG Service on the Internet. We also have EPG for the most channels all around the world (currently 7500+) and we also add new channels continuously. You can even ask for channels and we will add them as fast as we can.