I have a Class Dojo account, which is brilliant for individual reward points etc. You can communicate with parents about how well your pupils have done, you can use it as a register, you can use it on your tablets or PC and its a great motivator. However, I have had some problems with Class Dojo with my tablet at school (Don't know if its me or Class Dojo. All works fine at home) so I thought I would give Classcharts a go and see which one I like best. Classcharts is similar to Class Dojo, and you can also create seating plans. Class Dojo has an app, which is great but Classcharts doesn't, so 1:0 to Class Dojo!!!
I'll keep you posted!