Avare, stratux, android tablet
Yep. I have tried all of them and I use Avare and DroidEFB both now. They have the least annoying interface.
I used FlPlan Go until Garmin made people pay for "premium services;" it is still free and good, though.
I use my Stratux for the GPS/ADS-B/ADAHRS and have had only one signal loss/jamming occurance.