Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Ripple - Ripple connects banks, payment providers, digital asset exchanges and corporates via RippleNet to provide one frictionless experience to send money globally
TextMe - TextMe is a free calls and messaging application at both local and international levels.
Swift - Swift is a general-purpose, multi-paradigm, compiled programming language developed by Apple Inc. for iOS, macOS, watchOS, tvOS, Linux and z/OS.
Talkatone - Android App on. Google Play. Stop paying for cell minutes, texts & landlines; Turn your iPad or iPod touch into a phone; Call/Text even in areas with bad cell coverage; Call/Text when travelling without paying for expensive international minutes.