2900000 score - got rank A... okay... another try. Got 3100000 score and rank B! At first i thought to get higher rank you have to achieve bigger score. Seems like the score is not the only variable. What's more?
made it to nine letters words.. you should add achievements for 1T combinations and so on.. reward for quotes and words are so low. I have spent billions of gold, and next achievement is 33,000 words just for 100K gold. It is nothing. That's my report :D Take it into consideration if you will continue to develop this game :)
There is one thing i think should be fixed. When you exporting a code you're saving only earth or moon progress, depending on where you were when pressed "export" button. So if you want to export moon and earth progresses both you have to copy two codes, from earth and from moon. And then import them both too.