Not sure if this is really a bug, but I noticed this last time I had to reinstall on my iPhone. I made sure I had uploaded my progress as a cloud save and uninstalled/reinstalled Cell to Singularity. When I launched the game and downloaded my cloud save I noticed I was able to re-earn the Darwinium cubes associated with the menu options like going to each of the social media accounts -- Reddit, TikTok, Twitter, Facebook, etc.
It wouldn't be terrible efficient and really slow going, but one could conceivably farm unlimited cubes.
I wonder if this is even something that can be addressed, or is it an unintended side effect of reinstalling the game?