ReOTP vs Sinch

Why pay $0.045 per SMS OTP when you can use ReOTP via WhatsApp and Telegram for a fraction of the cost?

Sinch

$0.045

per successful verification

VS
WINNER

ReOTP

Up to 90% Less

Unlimited via fixed plans

Every undelivered SMSis basicallya lost customer

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Documentation
Secure payments via:

Trusted by our clients to process over 1,000,000 verifications monthly

+1,250
Active Enterprise Clients
+15.4M
Successful OTP Verifications
-94%
Cost Reduction vs SMS
99.98%
Uptime & Delivery Speed

Save up to 65% of OTP costs

Instantly reduce your operational expenses and increase your profit margins. With our system, you will never pay for fake or undelivered messages.

SMS Cost$0.05 / Verify
ReOTP Cost$0.0004 / Verify
server.ts
import { ReOTP } from 'reotp-node';

const client = new ReOTP('YOUR_API_KEY');

// Trigger verification
await client.verify.send({
  phone: '+201000000000',
  channel: 'whatsapp'
});

Easiest API to integrate. Ready in 10 minutes.

Launch a secure verification system without wasting weeks on complex programming. Test the stability and launch using just 3 lines of code.

5 times faster than traditional SMS

Verification codes arrive in less than a second. Completely eliminate customer registration abandonment and double your user base instantly.

0.8sDelivery Speed

One API. Endless Possibilities.

Whether you want to add an extra layer of security or remove passwords completely, ReOTP provides flexible integration models for every use case.

Mode 01 • Maximum Security

Standard 2FA (Recommended)(Standard 2FA)

Require users to confirm their phone number after entering a password to prevent unauthorized access.

Workflow Steps:

Step 1Enter Account Password
Step 2Send ReOTP Code
Step 3100% Secure Login

Goal

Maximum security for sensitive data.

Example

Banking applications, crypto wallets.

Read API Integration Guide
Mode 02 • Instant Login

Passwordless Lite(Passwordless Lite)

Users just enter their phone number and click a button. We handle the verification in the background.

Workflow Steps:

Step 1Enter Phone Number Only
Step 2Send ReOTP via App
Step 3Instant Passwordless Login

Goal

Frictionless login process.

Example

E-commerce apps, food delivery.

Read API Integration Guide
Mode 03 • Smart Cost Saver

Smart 2FA(Smart 2FA)

Trigger 2FA only when users log in from a new device, a new IP address, or perform a sensitive action.

Workflow Steps:

Step 1Initial ReOTP Verification
Step 2Bind Passkey Device
Step 3Free Biometric Login

Goal

Balance between security and convenience.

Example

SaaS platforms, social networks.

Read API Integration Guide
Mode 04 • Pure Passwordless

Pure Passwordless(Pure Passwordless)

A completely customized flow tailored to your needs using our low-level API endpoints.

Workflow Steps:

Step 1Initial ReOTP Device Sync
Step 21-Touch Biometric Login
Step 3Monthly 1-ReOTP Refresh

Goal

Absolute control over UX.

Example

Custom enterprise solutions.

Read API Integration Guide

No manual integration needed! Hand off ReOTP verification prompts directly to Cursor, Antigravity, Claude Code, Windsurf, or Bolt for instant zero-code setup.

CursorAntigravityClaude CodeWindsurfBoltv0
Get Your Project Prompt ⚡/llms.txt (AI Docs)
AI Agent Integration Handshake
AI-Ready
Step 1: Copy ReOTP Master Prompt

Includes API Key, OpenAPI Specs, & Endpoint contracts.

Step 2: Paste into Cursor / Antigravity / Bolt

"Integrate ReOTP authentication into my Next.js App..."

Step 3: Instant 10-Second Auth Setup! 🎉

No manual coding. AI Agent builds full logic & UI automatically.

Why Developers Prefer ReOTP Over Legacy SMS

Side-by-side real comparison between expensive SMS providers and ReOTP.

Actual Delivery Rate

Legacy SMS78% (Lost messages & carrier delays)
ReOTP99.8% (Instant guaranteed delivery)

Setup & Integration Time

Legacy SMSWeeks (Carrier approvals & paperwork)
ReOTP2 Minutes (API key & instant SDK)

Security & Fraud Protection

Legacy SMSVulnerable to SIM Swapping
ReOTP256-bit HMAC & Adaptive Security

Security Investment Plans

Pricing plans built directly from our database to meet all your project needs.

Have Questions? Browse our FAQ

Explore over 65+ questions covering integration, pricing, security, and AI readiness.

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