Thanks for the kind and helpful review! Good idea on further zoom and deals on planets. I do hope to make a v2 and I'll likely add those changes.
Regarding high score, your score is sent to the server as you play, but unfortunately if you spent all your money, it would have used your _last_ score and not the highest you ever had :(. Might be a good reason for me to only send new score if it higher than your last one.