I just purchased the app from windows store and the issue I face is that the content is extremely small, nearly unreadable. I believe there is an issue with high dpi screen scaling.
For your reference:
Running Surface Pro 4 - Win 10 x64 - 200%Scaling
Kindly help me sort it out. I also left a 2 star review on the store, and I thought that wasn't nice so came here created an account to post the problem here for you to resolve. I apologize for that but I will definitely change it once the issue is resolved.

Thanks,
edited: to add images/screenshot