Syncup app not working

API Core error even with full update. Is TMobile going to fix or provide refunds?

its been over 2 weeks and they are still down, tech support has no answers.

same issue today, all my trackers are down and app wont open

I am having an issue with initial setup of the SyncUP tracker, When I enter the 15 digit IMEI number by scanning or manual it just spins and never sets up the tracker. I have tired on the Samsung 23 Ultra and the IPhone 14. No success with either one. Can anyone help?

Had problems this morning too.

Me too!! My poor child had to go to school all worried it would make noise.  I can't even see if she turned it off. All morning saying it can't connect. :(

Having the same issue all morning.