QuickBooks Self-Employed (QBSE) is great for on-the-go work from your phone or when you want to work on a laptop/computer. This way, you can ensure that your records are always organized and ready for tax time. You can access your QBSE account from your laptop through a web browser. Additionally, all the transactions that you've made from the mobile app will automatically sync to the web version.
Please know that you can use the same credentials when accessing your account from a mobile app or web browser. Click this link to be routed to the QuickBooks Self-Employed Sign-in page.
I also encourage reading these articles to learn more about the things that you can do in the QuickBooks Self-Employed web version: