Best LL gas cert app?

[Nwalky]

Hello all, i was wondering if anyone could share their thoughts on what they would deem to be the best LL gas cert app on the market, currently doing paper ones like a dinosaur and would be nice to get some recommendations from other guys. I did try searching this to see if there was already a thread for it but couldn't find anything, dunno if its just me being daft but any help would be appreciated

 

[RBG]

I am interested in this also. I currently use the yellow carbon copy pads