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Start sending SMS and WhatsApp messages today

Create your account yourself in minutes on Unecast, or let our team in Sri Lanka set everything up for you. No setup fee for SMS, and 50 free test SMS credits for new accounts.

Choose your channel

Two ways to reach your customers

SMS

SMS gateway

OTPs, order updates, reminders and promotions that reach every phone, including feature phones without data.

  • LKR 0.50 per transactional and LKR 0.70 per promotional SMS, taxes included
  • No setup fee, no monthly charge, no long-term contract
  • 50 free test SMS credits for new accounts
  • Your brand as the sender: typically 1 to 2 business days to register
  • Web platform for campaigns, API for your systems

You will need: your business registration document, the sender ID you want (check it with the sender ID checker) and two or three sample messages.

WhatsApp

WhatsApp Business API

A shared team inbox, campaigns, order updates and AI replies on one verified number, from an Official Meta Tech Provider.

  • Plans from LKR 8,500 a month, plus Meta's message fees at no markup
  • Most businesses complete onboarding in 10 to 30 minutes
  • Keep using your WhatsApp Business app number with Coexistence
  • AI agent and website live chat in every plan; WhatsApp calling from the Growth plan
  • Meta business verification handled with our help

You will need: the phone number for WhatsApp, access to your Facebook business account and your business documents for Meta verification. See WhatsApp pricing in Sri Lanka.

Starting small? Here is the low-risk path

  1. Start with SMS. There is no monthly fee, so a shop or clinic sending a few hundred reminders pays only for those messages. Use the SMS character counter to see the cost before you send.
  2. Use the free WhatsApp Business app until it holds you back. When several people need to answer the same number, you miss chats after hours or you need order updates sent automatically, it is time for the API. Our guide WhatsApp Business app vs API explains when the upgrade pays for itself.
  3. Move up without changing number. With Coexistence you keep your existing WhatsApp Business app number and chat history while adding a shared inbox, campaigns and an AI agent.

Bloomwire and Unecast: how it fits together

Bloomwire is the Sri Lankan company you work with: we register your sender IDs and WhatsApp number, set up your account and support your team. Unecast is Bloomwire's messaging platform, where you log in to send SMS, answer WhatsApp chats and run AI agents. One company and one local team behind both.

Rather talk to someone?

Call +94 77 600 3273 or email sales@bloomwire.lk, Monday to Friday, 9 AM to 6 PM. Tell us what you want to send and to how many people, and we will recommend the most cost-effective way to do it.

Not sure which channel?Most businesses use WhatsApp for conversations and SMS for codes and alerts.
Compare WhatsApp and SMS
Why businesses trust Bloomwire

A Sri Lankan messaging company since 2019

150+businesses served since 2019Bloomwire customers
10M+messages processedWhatsApp, SMS and web chat
250 → 10,000WhatsApp conversations a day for Colombo Furniture HouseCustomer since June 2026
2 awardsTopWeb.LK Award winner (opens in a new tab), March 2025 and June 2026LK Domain Registry

Official Meta Tech Provider · Clients include Hutch Enterprise, Loan Plus, Halpé Tea, 98 Acres and HuMed · Bloomwire (Private) Ltd, Reg. No. PV00214667, Pannipitiya · Read our client stories

FAQ

Getting started questions

Trials, contracts, payment and what you need to begin.

Can I try Bloomwire before I pay?

Yes. New SMS accounts get 50 free test SMS credits, so you can send test messages to your own phones before you top up. For WhatsApp, book a demo and we will show it working on your own use case before you sign up.

Do I sign a long-term contract?

No. SMS is pay as you go with no setup fee and no monthly charge. WhatsApp plans are billed monthly. Ask our team if you need an annual agreement or custom terms.

What is Unecast?

Unecast is Bloomwire's customer messaging platform. When you create an account or log in, you use Unecast; Bloomwire is the Sri Lankan company that runs it, registers your sender IDs and WhatsApp number, and supports you.

How long does it take to go live?

For SMS, sender ID registration typically takes 1 to 2 business days once your documents are complete, subject to operator approval. For WhatsApp, most businesses complete onboarding in 10 to 30 minutes; Meta business verification can take longer.

What do I need to start?

For SMS: your business registration document, the sender ID you want and a few sample messages. For WhatsApp: a phone number for WhatsApp (you can keep using your WhatsApp Business app number through Coexistence), access to your Facebook business account and your business documents for Meta verification.

How do I pay?

For SMS you top up your Unecast balance and pay only for the messages you send. For WhatsApp you pay a monthly Bloomwire plan, and Meta charges its per-message fees directly to the card on your WhatsApp Business account.

Is Bloomwire suitable for a small business?

Yes. Many customers start small: SMS needs no monthly fee, and you can start WhatsApp on the Starter plan with one number and one user. If you only chat with a few customers a day, the free WhatsApp Business app may be enough for now; our guide explains when to upgrade.