WiFi Map - A crowdsourced list of routers and passwords

Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.

Get Free Fucking WiFi - Find the best fucking WiFi just around the corner.

WhosCall - WhosCall is a reliable caller ID app whose popularity has led to its adoption by many users including international media. You can now manage the numbers calling you regardless of whether they are part of your contact list or not... read more.

Instabridge - Crowdsourced free wifi (now on Android)

CallApp - Free Caller ID & Call Blocker app that allows mobile users to block phone calls, identify calls, blacklist unwanted callers and much more.