The WhatsApp Business API is Meta’s official sending channel, reached through a Business Solution Provider. WhatSender is an automation layer over a regular WhatsApp number. The choice is really between sanctioned delivery and immediate delivery.
The short answer
Use the official API when messaging is core infrastructure: order updates, OTPs, anything that must never be cut off, plus a green tick. Use WhatSender when you want to run marketing campaigns from your existing number today at ₹300/month, with no verification queue, no template approval and no per-message charge.
| Factor | WhatSender | the WhatsApp Business API | Edge |
|---|---|---|---|
| Cost model | ₹300/month flat, no usage charge | BSP subscription plus Meta per-message charges by category | WhatSender |
| Billing basis | Per month | Per message since 1 July 2026 (previously per 24-hour conversation) | WhatSender |
| Service replies | Included | Free — non-template replies inside the 24-hour customer service window carry no charge | Even |
| Time to first send | Minutes — QR scan | Days — Meta app, WhatsApp Business Account, number registration, template approval | WhatSender |
| Template approval | None — write and send | Required for marketing, utility and authentication templates | WhatSender |
| Existing number | Keeps working, app included | A number already on WhatsApp must be deleted from the app before registration | WhatSender |
| Throughput ceiling | Plan daily caps plus warm-up pacing | 80 messages/second per number by default, upgradeable | the WhatsApp Business API |
| Deliverability guarantee | Best effort on an unofficial path | Sanctioned channel with published limits and quality ratings | the WhatsApp Business API |
| Billing currency | INR via Razorpay | INR available for India-based businesses since 1 January 2026 | Even |
| Green tick (official business account) | Not available | Available via Meta verification | the WhatsApp Business API |
| Account restriction risk | Real — unofficial automation, mitigated by warm-up and daily caps | Lower — official API number, policy-enforced instead of restricted | the WhatsApp Business API |
the WhatsApp Business API figures checked 22 July 2026. Vendors change pricing without notice — confirm on their site before deciding.
Meta moved WhatsApp Business Platform billing from per-conversation to per-message. Under the old model a single 24-hour conversation window covered as many messages as you sent inside it; under the new one, each template message is charged. Any cost estimate written before mid-2026 — including most comparison articles still ranking for this query — is now arithmetic on a model that no longer exists.
Two other recent changes matter. Non-template replies inside the 24-hour customer service window have been free since November 2024, so support-heavy usage is cheaper than the sticker rate suggests. And since 1 January 2026, India-based businesses can be billed in INR rather than USD, which removes the FX surprise from the monthly invoice.
Meta publishes India rates through a rate card rather than embedding them in its documentation, so the per-message figure you will actually pay comes from your BSP. Ask for it in writing before signing: it is the number that decides whether the API is cheaper than a flat-rate sender at your volume.
Getting live on the API means creating a Meta app, connecting a WhatsApp Business Account, registering and verifying a phone number, setting a two-step PIN, configuring webhooks, and getting message templates approved. Each step is reasonable; together they are days of work and waiting, and a number already in use on the WhatsApp app has to be deleted from it first.
For a business that wants to send a festival offer this week, that queue is the whole decision. WhatSender connects by QR scan in the same way WhatsApp Web does, and the phone keeps working normally.
If messages are operational rather than promotional — order confirmations, delivery updates, one-time passcodes — you need the official channel. Those messages have to arrive whether or not an automation layer is happy, and a restricted number in that setting is an outage, not an inconvenience.
The API also gives you throughput no unofficial path should attempt: 80 messages per second per number by default, with upgrades available. And it is the only route to the green tick, which for regulated or high-trust categories is worth the paperwork on its own.
WhatSender drives a regular WhatsApp number through an automation layer rather than Meta’s official API. That is why there is no approval queue and no per-message fee — and also why there is no green tick, and why a number that blasts cold contacts can be restricted by WhatsApp. Warm-up limits and daily caps exist to manage that risk, not to remove it.
It depends on volume and message mix. The API costs a BSP subscription plus a per-message charge for every template you send, while WhatSender is ₹300/month flat. Support-style replies inside the 24-hour window are free on the API, so a business that mostly answers inbound messages can land close. A business pushing outbound marketing usually does not.
Yes. Billing moved from per-conversation to per-message on 1 July 2026, and India-based businesses have been able to pay in INR since 1 January 2026. Cost comparisons written before those dates no longer apply.
Only by giving it up in the app first. Meta requires a number already in use on WhatsApp to be deleted from the app before it can be registered to the API. WhatSender leaves the number on the app and connects alongside it by QR scan.
No. Template approval is a Business API requirement. WhatSender sends from your own number, so message content is not queued for review — which is faster, and also means none of the delivery guarantees that review buys you.
The free plan sends 50 messages a day with no card and no approval queue. Paid plans start at ₹300/month.
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