can google leader board service save high score

Yes you could do that the google play services save your highest score and when your game is submitting scores to the server it will automatically check if the score is higher then the pervious it will update it leader board with the new score. It’s the same concept of the achievements system. Also the playstore system make your game very social, meaning your friends can compare their scores and try to beat them. Look at my game you might get a better understanding.

Any questions ask

wheres ur game sir?  can i get an apk?

where i can find the tester phase of the play store?

https://play.google.com/store/apps/details?id=com.boxingstudiogames.jetfighter

Google to the google developers console herehttp://www.google.com/url?sa=t&source=web&cd=1&ved=0CCgQFjAA&url=https%3A%2F%2Fplay.google.com%2Fapps%2Fpublish%2F&ei=wo_eUpXtI4blsAS85YD4CQ&usg=AFQjCNEvG-AI0sojdmEeraO9D_b4Xtsn6g&sig2=9Wm4h0TXiHl-_fvGU77YTQ and sign in

Follow thishttps://developers.google.com/games/services/console/enabling#step_2_add_your_game_to_the_dev_console

theres a pay registration fee?

Yes 25 dollars life time developer fee

You pay once

awts i dont have money sir i dont have a credit card…
I’m a poor programmer… 

thank for ur effort to help me sir… i apric8 it but i think i give up …

I have a proposal I could make you publish your app under my company name Boxing studio games