# OTP and phone verification costs in India

What SMS OTP really costs an Indian app at scale, why WhatsApp OTP is a fraction of it, and how to cut verification spend without hurting sign-up completion.

OTP is the one message every app sends to every user, so a few paise of difference per send compounds fast. These posts compare SMS and WhatsApp delivery on cost, delivery rate and user friction, and walk through the levers that reduce spend: fewer resends, smarter fallbacks, and choosing the channel per user.

TapVerifi is our WhatsApp verification product, and the per-verification pricing quoted in these posts is its live rate.

## In this guide

1. [WhatsApp OTP vs SMS OTP: a real cost breakdown for Indian apps](https://botbrained.com/blog/whatsapp-otp-vs-sms-otp-cost-india/index.md): A practitioner's comparison of WhatsApp OTP and SMS OTP for Indian apps, covering delivery, cost, and UX, with honest trade-offs and where each channel actually wins.
2. [How to cut OTP and verification costs for your app](https://botbrained.com/blog/reduce-otp-verification-costs/index.md): A practical guide to reduce OTP cost without hurting conversion: channel choice, rate limiting, fraud control, and retry discipline, written for Indian apps.

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