Zello - Zello's push-to-talk app redefines the walkie talkie. It's a great push-to-talk over cellular (PoC) alternative for businesses and organizations. Learn more about the best walkie talkie app in the market.
Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
Walkie-Talkie.io - This completely free walkie-talkie app online allows you to communicate quickly and easily with your friends. Go to the same radio frequency, push to talk and that's it! There is also a mobile iOS version and always 100% free !
Zoho WorkDrive - File storage & content collaboration tool for modern teams
NuovoTeam - NuovoTeam Push-to-Talk (PTT) App for Frontline Workforce.
kDrive - The most privacy-friendly online storage and file sync service. From 2 TB, hosted in Switzerland.