Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Octopush - Octopush is a company providing technology-based communication solutions, including SMS, Web solutions, and Email APIs.

WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

E-goi - Email Marketing companies, SMS Marketing, software email marketing.

Facebook Messenger - Facebook Messenger is a faster way to message.

Maytapi - Serverless Whatsapp Api with Chat and Agent support.