Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
TextMe - TextMe is a free calls and messaging application at both local and international levels.
Lingvanex Translator for Slack - Auto-translate messages, documents and images in Slack
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.
Inspector Spacetime from Google - Google Translate for engineers working with motion