Send bulk SMS, OTPs and alerts from Synex to customers on all Sri Lankan mobile networks with your own Sender ID, a simple web dashboard and a developer API.
SMS is still the fastest way to reach customers in Sri Lanka — almost every message is read within minutes. The Synex Bulk SMS Gateway sends promotions, reminders, OTPs and transaction alerts to Dialog, Mobitel, Hutch and Airtel numbers from one dashboard, or straight from your Synex POS, ERP, website or app.
Your brand as the sender
Messages arrive with your business name as the Sender ID, so customers know exactly who is contacting them. We handle the Sender ID registration for you.
Built for business
Upload contact lists, personalise messages, schedule campaigns and track delivery in detailed reports. Write in English, Sinhala or Tamil.
Connect your systems
Use the SMS API to send OTPs, order confirmations and payment reminders automatically. Ready-made plugins are available for WooCommerce, Shopify and Zapier.
Simple pay-as-you-go pricing
No monthly subscription. LKR 0.62 per SMS, a one-time setup fee of LKR 2,684, online top-up whenever you need it. Credit never expires.
Key Features
Benefits for Your Business
- Reach customers in seconds
- Higher open rates than email
- No monthly commitment — pay per SMS
- Automate OTPs, reminders and receipts from Synex POS & ERP
Pricing
SMS — Pay As You Go
For every business in Sri Lanka, with or without Synex POS. No subscription — pay only for what you send.
One-time setup fee: LKR 2,684 · All taxes included
- 3 free Sender IDs
- No monthly commitment
- Online credit top-up
- Credit never expires
- Unlimited contact storage
- Full web dashboard
- Full SMS API access
- WooCommerce, Shopify & Zapier plugins
- Sinhala / Tamil Unicode support
- Detailed SMS reports
- Customer support
Questions
How much does it cost to send an SMS?
Each SMS costs LKR 0.62 (all taxes included). There is a one-time setup fee of LKR 2,684 and no monthly subscription.
What is a Sender ID?
A Sender ID is the name that appears as the sender of your SMS, such as your business name. Three Sender IDs are included and we handle the registration for you.
Can I send SMS in Sinhala and Tamil?
Yes. Messages can be sent in English, Sinhala or Tamil using Unicode. Unicode messages use more characters per SMS.
Does my SMS credit expire?
No. Credit you top up stays in your account until you use it.
Can I connect SMS to my website or system?
Yes. Synex POS and ERP send SMS directly, and the SMS API sends OTPs, order confirmations and reminders from any website or app. Ready-made WooCommerce, Shopify and Zapier integrations are available.
