itch.io

For android, 

you can copy your save files from com.androidterrene_0_0_7 folder, into com.androidterrene_0_0_8 folder, located in your storage. 

There's also an option to just jump to Act 2 when creating a new game if you want. 

But saves won't work correctly, if they're more than one version older  I.E saved from v 0.07 won't work with v0.09