OTP Verification Codes on WhatsApp: Cheaper Than SMS? A Calculator and Comparison
Send verification codes on WhatsApp with authentication templates: Meta prices in Saudi Arabia and the UAE vs SMS, plus a monthly cost calculator.
The WhatsApp Business API offers dedicated authentication templates for sending one-time passwords (OTP) with a copy-code button. After October 1, 2026, an authentication message costs about $0.0107 in Saudi Arabia, $0.0157 in the UAE and $0.0091 in the rest of the Middle East. Compare that with your provider's SMS price, and keep SMS as a fallback for people who don't use WhatsApp.
01Why use WhatsApp for verification?
- A "Copy code" button makes entry easy.
- The message comes from your business account, with your name and logo.
- Delivery over the internet, even when the customer is traveling.
- Competitive cost in many Gulf countries.
02Compare the cost with your price
Authentication prices are approximate, from Meta's rate card after October 1, 2026, and differ for some countries depending on where the business is registered (the international authentication rate).
03How does an authentication template work?
- You create an authentication template in WhatsApp Manager or from your platform.
- The template text is fixed by Meta, with a placeholder for the code and an optional security warning.
- You add a "Copy code" button, or an autofill button in supported apps.
- Your system generates the code and sends it through the API.
- You set how long the code stays valid.
Authentication templates are for codes only. Don't add links or offers, or the template will be rejected.
04WhatsApp first, SMS as backup
Not every user has WhatsApp. The best approach: send via WhatsApp, and if delivery fails within seconds, send an SMS. That way you get lower cost and a better experience without losing any user.
05Is it right for you?
| Situation | SMS | |
|---|---|---|
| A commerce app in the Gulf | A great fit | Backup |
| Banks with specific regulatory requirements | Depends on the regulator | Often required |
| Older users | Suitable | Important as a fallback |
| Very high volume | Compare prices | Compare prices |
Key takeaways
- Authentication templates are built for verification codes, with a copy button.
- Their price is competitive in many Gulf countries.
- Compare with the actual SMS price from your provider.
- WhatsApp first with SMS as backup is the ideal setup.
Frequently asked questions
Are verification codes over WhatsApp secure?
Messages are end-to-end encrypted, and the code's security still depends on its short validity and your system.
Does Modeer 360 support authentication templates?
Ask the Modeer 360 team about sending authentication templates through your account.
Am I charged for a code that isn't read?
Meta charges for delivered template messages.
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- #SMS alternative for verification