Send invoices, order updates and OTPs to your customers on WhatsApp.

Link your own WhatsApp number with a QR code, then send from your website, store or billing system. Your customers read WhatsApp. SMS and email often go unread.

No card needed. Plans from Rs 699 a month, paid by bank transfer.

  • Rs 0.04per message, from
  • 10 minto send your first message
  • NoMeta approval or templates
A
Ali's Storeonline

Messages are end-to-end encrypted.

Hi, I placed an order a few minutes ago
Order #1042 confirmed โœ…
Total: Rs 4,250
Track: shop.pk/t/104210:42
Thank you! ๐Ÿ™
POST /api/v1/messages
{
  "to": "923001234567",
  "text": "Order #1042 confirmed โœ…โ€ฆ"
}
201 ยท queued ยท delivered in 2 s
  • End-to-end encrypted by WhatsApp
  • Encrypted on our servers
  • Private by default
  • Pay by bank transfer

Works with the tools you already use

Messages your customers actually want

These are the messages businesses send most with SendFlow. Each one goes out from your own number, with your name on it.

Invoices and paymentsInvoices with PDF, reminders, receipts
Invoice Generated:
Hi Sara, invoice #29617 of Rs 2,999 is due on 24/10/2026.
Pay online: billing.example.pk/pay
Invoice-29617.pdf
09:15
WooCommerce and ShopifyConfirmed, shipped, delivered, COD check
Please confirm your order #5521
Cash on Delivery: Rs 6,480
Reply 1 to confirm or 2 to cancel.16:02
Login and verificationOne-time codes, login alerts, resets
Your verification code is 482913. It expires in 10 minutes. Do not share it with anyone.11:30
Appointments and bookingsConfirmations and reminders
Reminder: your appointment at City Dental is tomorrow at 4:30 PM. Reply 1 to confirm or 2 to reschedule.18:00

See how other businesses use it

Live in ten minutes

No paperwork, no Meta approval, no developer needed for the plugins.

  1. Create your accountStart the free trial. No card, no documents.
  2. Scan the QR codeLink your business WhatsApp number from the dashboard, just like WhatsApp Web.
  3. Send your first messageInstall the WooCommerce, Shopify or WHMCS plugin, use the API, or send from the dashboard.
Create your free accountTakes about a minute.

Everything you need to message customers safely

Safe sending

Random delays, daily limits and quiet hours, so your number behaves like a person, not a bot.

Bulk send from Excel

Upload a sheet, personalise with {name} or any column, schedule it and watch progress live.

Files and link previews

Attach invoice PDFs, receipts or product photos. Links show a title and image.

Spam protection

Risky messages are blocked before they go out, and STOP replies opt people out.

Delivery and read ticks

See every message's status in the dashboard, or get it on your webhook.

Customer replies

Turn on replies to receive answers on your webhook, like COD confirmations.

Multiple numbers

Separate numbers for billing, support and marketing, each with its own key.

Private by design

Encrypted on our servers, kept private, and deleted on your schedule.

Privacy & security

Your messages stay between you and your customer

Encrypted when they travel, encrypted on our servers, private by default, and deleted on your schedule.

End-to-end encrypted

Every message uses WhatsApp's end-to-end encryption between your number and your customer's phone. WhatsApp, Meta and internet providers can't read it.

Encrypted on our servers

Message text, customer replies and your WhatsApp session keys are stored with AES-256 encryption. Backups are encrypted too.

Private by default

Our admin tools show only the number, time and delivery status, never what you wrote, even while we help you with support.

Deleted on your schedule

Choose to keep message text for 1, 7, 30 or 90 days, or delete it all with one click. Delivery reports keep working.

How we protect your data โ†’

Simple monthly plans

No per-message fees. Pay by bank transfer and upload the receipt, and your plan starts as soon as it's verified.

Try every feature free for 7 days300 messages, 1 WhatsApp number. No card needed.
Start free trial

Starter

For small businesses

Rs 699per month

About Rs 0.14 per message

  • 1 WhatsApp number
  • 5,000 messages a month
Choose Starter

Pro

For agencies and high-volume senders

Rs 3,999per month

About Rs 0.04 per message

  • 10 WhatsApp numbers
  • 100,000 messages a month
Choose Pro

Every plan includes

  • Send from the dashboard and schedule messages
  • Delivery and read ticks
  • Spam protection and STOP opt-outs
  • Encrypted message storage
  • Bulk send from Excel or CSV
  • PDF, image and file attachments
  • API, webhooks and plugins for WooCommerce, Shopify and WHMCS

What 1,000 messages cost

Branded SMSRs 3,500 โ€“ 4,500
Official WhatsApp APIRs 4,170+ plus monthly platform fee
SendFlowRs 40 โ€“ 140

SMS and official API figures are typical Pakistan rates (utility messages) in 2026 and vary by provider. SendFlow sends from your own WhatsApp number, so there are no per-message fees.

One request. That's the integration.

A clean REST API with a key per number. Works from PHP, Node.js, Python, WordPress, Shopify Flow, Zapier or anything that can make an HTTP request.

Read the API guide

curl -X POST https://sendflow.pk/api/api/v1/messages \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to":"923001234567","text":"Hello from SendFlow"}'

Questions

Can't find your answer?

Contact us

Do I need the official WhatsApp Business API?

No. SendFlow links your existing WhatsApp or WhatsApp Business number the same way WhatsApp Web does. There is no Meta approval or template review.

Will my number get banned?

Numbers that message their own customers with useful notifications are safe in normal use. Unsolicited bulk marketing, bought lists and messages people report as spam can get any number banned by WhatsApp. We pace messages for you, but you are responsible for who you message. Use a dedicated business number.

Does my phone need to stay online?

No. After linking, messages are sent from our servers. Open WhatsApp on the phone at least once every two weeks to keep the link active.

How do I pay?

Choose a plan, transfer the amount to the bank account shown on the invoice, and upload the receipt in your dashboard. We verify it and activate your plan, usually within a few hours.

What happens if I reach my monthly limit?

New messages are rejected with a clear error until the next month or until you upgrade. Messages already queued are still delivered.

Can I cancel anytime?

Yes. Plans don't renew automatically; if you don't pay the renewal invoice, sending simply stops. You can delete your account and all its data from Account settings.

Are my messages end-to-end encrypted?

Yes. Every message travels on WhatsApp's end-to-end encryption between your number and your customer's phone, so WhatsApp, Meta and internet providers can't read it.

Who can see my messages?

Only you and the people you message. Message text, customer replies and your WhatsApp session keys are stored with AES-256 encryption, and our admin tools show only the number, time and delivery status, never the text. The one exception: a message blocked by spam protection can be reviewed to prevent abuse. Our servers handle your messages in order to send them, as any sending service must.

Is my data secure?

Passwords are stored as secure hashes, the site runs on HTTPS only, every API key can be limited to your server IPs, two-step login is available, and you choose how long message text is kept (1 to 90 days). After that only the date, number and status remain.

Start sending in minutes

Free for 7 days. No card required.