a.placebetween.us - Find a meeting point based on place type
Nexmo - Nexmo is a simple two way SMS API with global reach and wholesale rates
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
MessageBird - Reach 7 billion phones in seconds via SMS, Chat & Voice. Try it for free and improve your communication.
Works For All - Find a central meeting place for everyone in the group
Plivo - Plivo simplifies your customer engagement.