Interferes with wifi connection

Traveling in Mexico with family. All other family devices are working fine, but my 3 month old iPhone 6 constantly loses connection with the wifi. On a hunch, I delete the boingo wifinder app, as its the ONLY difference I can think of between my phone and the wifes which is working perfectly. Bingo. Wifi works fine. At least it indicated which wifi to connect to at the resort...

B00jiboy about Boingo Wi-Finder, v5.12.15