Useless coverage maps – Opensignal Internet Speed Test Review

I downloaded app to compare providers’ coverage in Mexico. Surprised and pleased when provider list let me see maps for Telcel and ATT separately, then I noticed two maps were identical (did AB compare of screenshots since I didn’t trust my memory). Maps were also flakey and useless wherever I checked them in Maine, too. Deleted
Review by CCFFCCFFCCFF on Opensignal Internet Speed Test.