Thank you, Tim! :) We're glad to help!

Hi there,
Are you referring to InteractBuilder or to an app that you have built using InteractBuilder? Is it too large or too small for the display screen?

As long as the new file in the app folder has the same file name as the original file, the app should refer to the updated one. So if you want to take any of your image files through TinyPNG, you can just replace them in your app. When the smaller file is ready in your Downloads folder, change the name of the file to match the original, and move it to your app folder. Your computer will ask if the file should be replaced, and you can click "Yes." The app will then use the new file instead.