Q: Can't install VSCO app. The Apple ID that appeared in App store was not my ID.

Hi Anna, 

I understand that you are having issues with downloading the VSCO app as another Apple ID is showing up to download it. To make sure that you are purchasing apps with your Apple ID, go to Settings > iTunes & App Store and sign out of whatever account shows up and then sign back in with your account. Then try downloading the app again. 

Sign in with a different Apple ID on your iPhone, iPad, or iPod touch
https://support.apple.com/en-us/HT203983

Let me know if this helps.

Have a good day