Reach every customer's phone, on every network, in seconds.
Bulk SMS across Safaricom, Airtel and Telkom in Kenya and Vodacom, Tigo and Halotel in Tanzania, with OTP, custom sender IDs and a REST API.
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Every major network
Deliver to Safaricom, Airtel, Telkom, Vodacom, Tigo and Halotel subscribers.
Your brand on every message
Custom sender IDs so customers know it is you.
Built for developers
A REST API for OTPs, alerts and transactional messages from your own systems.
Everything in FlexCaller
Reliable SMS to every network in Kenya and Tanzania.
Multi-network delivery
Custom sender ID
OTP delivery
REST API
KES and TZS pricing
Delivery reports
See it in action
Connects to the rest of your business
Bulk SMS shares customers, products and payments with these apps, so nothing is typed twice.
Built for businesses like yours
- SACCOs and MFIs sending alerts and reminders
- Retailers running promotions
- Schools and churches
- Developers needing OTP and transactional SMS
Popular in: SACCOs & Microfinance, Retail & Hospitality, Courier & Logistics, Property & Real Estate
Pricing
Get a tailored quote
Pricing depends on your volumes and setup. Tell us about your business and we'll send a clear quote.
Request a quoteBulk SMS questions, answered
Safaricom, Airtel and Telkom in Kenya, and Vodacom, Tigo and Halotel in Tanzania.
Yes. We help you register a custom sender ID with the networks.
Yes. A REST API lets you send OTPs and transactional messages from your own software.
Ready to see FlexCaller in action?
Book a free 30-minute demo. We'll show you the apps that fit, using examples from your industry.