Munchkin Level Counter and Epic Munchkin counter

[Boba]

Today I have found at resources interesting Epic Munchkin counter, that allows to hold 3 classes with SuperMunchkin card for Epic Munchkin game.

Besides, I have Munchkin Level Counter for android (that gives me Boon once per game).

The question is: can I use two this counters at the same time to get Boon from Munchkin Level Counter and to hold 3 classes with SuperMunchkin card?
If no, can I start with Munchkin Level Counter, get a Boon, use it, and after that shut down Munchkin Level Counter (because I want, or because my mobile is battery-low) and take Epic Munchkin counter (and hold 3 classes with SuperMunchkin card)?