I am looking to change my company logo on my app, can anyone advise on how to do this? Thanks, Mike

Hello there, mike_hatch.

Changing your company logo through QuickBooks Online mobile app is currently unavailable. You'll have to log in to your account using a web browser. Then, update your company logo in the Account and Settings page. I'm here to guide you how.

1. Go to the Gear icon.
2. Select Account and Settings.
3. Go to the Company menu.
4. Click anywhere in the Company name section.
5. Select the Logo field.
6. In the Logos window, select your new company logo.
7. Click Save.
8. Select Save again once done.

I've attached screenshots below for your reference.

A well-designed and properly-presented logo help establish the company's brand. If you wish to personalise your company logos, kindly check out this article: Customise logos on sales forms. It also contains reminders and answers to the most frequently asked questions.

Moreover, to learn more about the things that you can perform through the Account and Settings page, I'm adding this article for the complete details: Configure Accounts and Setting.

Please let me know if you have other concerns. I'm just around to help.