I've created a free trial account. My mobile app is requesting a Experience Service URL.
How Can I get this?
@Danzig360 You can leave the Experience Service(ES) URL empty and while scanning project using ThingMarks associated with your Trial instance it will automatically point to your ES.
In case you are interested in knowing your ES then can use Auto configure option from Studio application as shown in attachment. Select Portal Login and enter your login credentials.
Upon successful configuration go to option - Settings and refer the Default Experience Service URL for knowing you Trial ES URL.
Hope you are doing good. Could you please confirm if the issue has been resolved.
If yes, please mark the answer as accept as solution for the future reference. Thank you in advance.