YouMailYouMail replaces your voicemail with an automated secretary for your iPhone or Android.
SkypeSkype makes it easy to stay connected with friends, family, or colleagues from around the globe.
SlackSlack is a team communication and collaboration platform that brings all your communication together in one place.
ViberViber lets you call, text, and send photos for free to other Viber users from any country.
Google HangoutsHangouts bring conversations to life with photos, emoji, and even group video calls for free.
HipchatA private group and video chat software with real-time collaboration, built for teams.
VoxerVoxer is a messaging app for smartphones with live voice, text, photo, and location sharing.