GPS is the most wanted information but not always because users tend to turn it off. In that case, WiFi will be an alternative. Currently there are many services and online databases that can rename WiFi and SSID / BSSID networks into estimated geographical coordinates.
According to Reveal Mobile's website, it can be guessed that the company has outlined the daily schedule of each person, collected information about favorite stores, supermarkets, coffee shops . and used to guide advertising, of both AccWeather and other advertisers.
In February, Strafach also released a research report showing that 76 vulnerable iOS applications can block encrypted TLS data.