Uploading personal image to use as app icon

Yes, that is a very common thing to do, to get your company logo in the top left corner. If you go to your app settings, and then into Branding, you will see Header, then select Basic and it will let you enter the URL for where the image is stored.  You can also decide if you want that image to be a live link to leave Quickbase and say go to your company website.  There is a place to enter a link.  

If you need a place to load the image so you can link to it you can make a table for logos in Quickbase somewhere and then probably want to check the box in the file attachment field to allow users to see the file even without logging in. Then you can view the record and then just click on that file attachment field and it will open up in your browser and you can copy and paste that link back into that branding area.  

Feel free to post back if you get stuck anywhere.