Thanks for your interest in using the QuickBooks Self-Employed (QBSE), haughton325.
I can help you download the QBSE app on your mobile device. From your App Store, you can search for QuickBooks Self-Employed.
Furthermore, you can go to this link to download the app: https://apps.apple.com/us/app/quickbooks-self-employed/id898076976.
All you need to know about QuickBooks Online Self-Employed can be found in this article: QuickBooks Self-Employed Overview.
Feel free to comment down below if you have other questions or clarifications. I'm always here to provide assistance. Have a great day ahead!