Well, how can I help and where? :)) I am going to be so glad if I can contribute.
I used ActiFit before (when we were on Steemit) but then I started to train jiu-jitsu and I didn't know how to combine those two. Maybe I didn't search enough, maybe those options didn't exist... I didn't know how many calories I lost during my training because you cannot have your mobile phone during jiu-jitsu. There were several other problems and I will help if I can at least to point them out.
RE: Designing mobile app - Trends, features, catches, advices... no.1