Mahou Shoujo Madoka★Magica, Punch Line Recommendations
Completely different approaches but similar in a certain aspect towards the end of both show's. They both have time loops and a character going back in order to save their friends.
They both have similar plot devices in the use of a non-human mentor to the main character as well as a saving the world plotline. As well as this, both shows are different to what they seem at first glance.
There are also a couple of other similarities but to share them would be huge spoilers.