When you first open the app, search for your school or district. Check that the state button at the top shows your state (CA or TX); tap it to switch. If you allow location access, the app also lists nearby schools. If your school doesn't appear, try searching by your district name instead.
If your school appears with the message This school has not enabled the app. Please contact your school., or you see Your district has not completed configuration for the Aeries Mobile Portal. Please contact your school for more information., your district hasn't turned on the app yet. If the app says Your district has disabled the Aeries Mobile Portal. Please contact your district for more information., your district has turned the app off.
In each case, contact your school or district to find out when the app will be available. Districts turn on the app and register their Aeries web address in District Options; for districts whose Aeries is hosted by Aeries Software, Aeries Support completes this step at the district's request.