Cashback Tracker plugin works with any wordpress theme, however we recommend to choose themes which have next options:
1.
User login/register modal.
2.
Buddypress support and possibility to add custom blocks on Buddypress profiles.
3.
Woocommerce support.
4.
myCRED plugin support.
5.
Option to add login/register buttons in header.
If you use Rehub theme, you can read about advanced integration with Cashback Tracker plugin and additional cashback options in documentation of theme.