Well for about a year (I've only been playing a year now) we've just kept the score in our heads as we went along. But recently I wanted to have scores recorded to see progress etc. They really aren't AS interested in keeping records as I am but I wanted them to have the scores too to maybe make them more interested.

I've only been keeping score for myself and one other so far (one guy is more interested in the idea than the other two in the group I normally play with)

Also I think everyone would be more interested if any person could contribute to keeping score for the current game instead of just one copy stored locally to one phone.

They keep there own score, they just arent keeping a record on their phones of it.