NextSMS

NextSMS is a bulk messaging platform for Tanzanian businesses, organisations, and individuals that need to send Internet SMS, WhatsApp messages, and SIM-based Mobile SMS for marketing, alerts, and customer communications.

Key capabilities include:

• Internet SMS campaigns in Tanzania with custom sender names, contact imports, message personalisation (variables), advanced scheduling, and delivery reports for tracking performance.
• WhatsApp messaging for local and international numbers, supporting multiple accounts, templates, scheduling, and REST API integration for sending from other systems.
• Mobile SMS via connected SIM cards using an Android companion app, enabling two-way messaging (send and receive replies) across countries and networks, priced as a flat rate per message (SIM carrier costs still apply).
• No-code WhatsApp Assistant to automate guided conversations and capture orders, bookings, and leads.

Available on Web with a REST API.

Target users include SMEs, enterprises, schools, NGOs, clinics, SACCOs, government teams, and individuals running broadcasts, as well as developers integrating OTPs, transactional alerts, confirmations, and reminders into applications.

Notable in the Tanzanian market context, the service focuses on local delivery across Tanzanian carriers (Vodacom, Airtel, Yas, Halotel) while also supporting WhatsApp and Mobile SMS for international reach, and it publishes prepaid, volume-based pricing and public API documentation (Postman).