TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.

Meetingbird - Powerful meeting scheduling and notes — right in your calendar

Dingtone - Dingtone is a free call and texting application for making unlimited calls and text messages to any number at the moment registered in any part of the world by any cellular company.

Standuply - Run daily standup meetings and track your metrics in Slack

TextMe - TextMe is a free calls and messaging application at both local and international levels.

Navigator - The Teamwork assistant — run great meetings without busywork