The best alternatives to Taza are WhatsApp, Espresso Chat, and Chime. If these 3 options don't work for you, we've listed a few more alternatives below.
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Agree.com— Free e-signature for everyone with invoicing and payments!
WhatsApp Messenger is a FREE messaging app available for iPhone, Android, and other smartphones. WhatsApp uses your phone's Internet connection (4G/3G/2G/EDGE or Wi-Fi, as available) to let you message and call friends and family. Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, documents, and Voice Messages.
Stack Overflow announced they will discontinue Developer Stories and more than 4 MILLION DEVS will lose their data: jobs, milestones, projects... Or not. Paste your Dev Story URL and download it as a JSON file. No mail. For free. As simple as that.
Viber is a cross-platform voice over IP and instant messaging software application operated by Japanese multinational company Rakuten, provided as freeware for the Android, iOS, Microsoft Windows, macOS and Linux platforms.