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WhatsApp vs SMS vs Email Marketing
Which channel should your business use? Compare features, reach, rules and cost for WhatsApp, SMS and email.
WhatsApp for conversations, SMS for OTPs, email for long content
WhatsApp usually costs more per message than SMS or email, but it offers media, buttons and real two-way chat – which often means more replies and sales.
WhatsApp vs SMS vs Email
How the three channels compare for business messaging.
| WhatsApp (WATick) | SMS | ||
|---|---|---|---|
| Experience | |||
| Rich media (images, video, PDF) | ✅ Yes | ❌ Text only (160 characters per part) | ✅ Yes |
| Buttons & quick replies | ✅ Yes | ❌ No | ⚠️ Links only |
| Two-way chat | ✅ Real conversations | ⚠️ Limited | ⚠️ Slow replies |
| Read receipts | ✅ Yes | ❌ No | ⚠️ Open tracking, often blocked |
| Chatbots & automation | ✅ Yes | ❌ No | ⚠️ Autoresponders |
| Reach | |||
| Where it lands | WhatsApp chat | SMS inbox, mixed with OTPs | Inbox, promotions or spam folder |
| Sender name | Verified business profile | Sender ID | Email address |
| Setup & rules (India) | |||
| Approval needed | Meta template approval | DLT registration & template approval | None, but spam rules apply |
| Opt-in required | ✅ Yes | ✅ Yes | ✅ Yes |
| Cost | |||
| Cost per message | About ₹0.86 + GST (India marketing) | Low, varies by provider | Very low |
| Best for | Offers, updates, support and sales conversations | OTPs and very short alerts | Newsletters and long content |
Compare cost per click, not cost per message
A cheap message that nobody reads costs more in the end. Put in your own numbers and see the real cost per read and per click.
🏁 Our tip
Use WhatsApp for messages that need attention or action – offers, reminders and support. Keep SMS for OTPs and email for newsletters. Together they work best.
Frequently Asked Questions
For offers, reminders and support, WhatsApp is usually better because of media, buttons and two-way chat. SMS is still useful for OTPs.
Per message, usually yes. But because more people read and reply on WhatsApp, the cost per result can be lower.
No. DLT is for SMS in India. WhatsApp uses Meta template approval instead.
Yes, with authentication templates. See our OTP Template Helper.
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