Real Users
Real Contact

Reliably onboard and engage your users with our phone identity, verification, one-time password and SMS notification platform.

Start using RingCaptcha on your app or website in 90 seconds.
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Hi John. Your one-time login PIN is 3592. Thank you!

Your driver, Arnold has arrived. He's driving a silver Toyota Camry with plate number SDW 791. Enjoy your ride!

Thank you for your order at Salina Cosmetics! Your order (3521) is now being processed and should be sent out within 3-5 business days.

Download iOSApp here: http://ringc.co/o15d0631 and use this code to activate: 1283.

E-Commerce PIN: 8251. Please verify your phone to proceed with checkout.

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  • Nvidia
  • Klarna
  • Investing
  • Lenddo
  • 99Taxis
  • Workana
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Fintech - Financial Inclusion
Phone Verification & Identity

Sending SMS internationally can be challenging, but RingCaptcha makes it simple. They handle the entire process from end-to-end, removing the complexity of dealing with multiple international providers and carriers. By delivering our SMS in a consistent and timely manner, they have proven themselves to be a reliable provider. — Howard Lince, Head of Development
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Electronic Goods - Games
Credit Card Fraud Protection

RingCaptcha offers a simple, speedy, and reliable way to perform phone verification through voice and SMS, which adds a additional layer of protection against malicious customers with stolen credit cards that credit card companies do not offer any defense against. — Martinez Stephane, Founder
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Financing - Real Estate
Leads Qualification

RingCaptcha's seamless phone verification has enabled us to maintain a stable CPA while vastly improving the lead quality. It has increased our customer retention rate more than 300% and is now beginning to increase our quantum of customers as the word spreads about our killer leads! Ringcaptcha were a fantastic help as they also wrote the code for our app integration for free — Ben Carew, Director of Design & Analytics

Simple. Fast. Reliable.

2-Factor Authentication

Embed our phone verification widget on your site to send users an SMS confirmation code to confirm their identity and expedite the onboarding process.

See how it works.
Try 2-Factor Authentication

Take Phone Number Identity And Verification To The Next Level


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Conversion Rate Optimization

Employ reliable phone number identity and verification as a critical part of user signup, login, and checkout for your web or mobile business..

Learn from a CRO Expert
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Anti-Fraud

Monitor over 50 different SMS and voice verification traffic data points and get alerts to any suspicious activity.

Learn about Anti-fraud

Built to help companies verify, retain and engage with their customers.


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Increased App Downloads

Users work on their laptops but chill with their phones.

Send a link for users to download your mobile app at their convenience.

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Contactability (2FA)

In today's on-demand world of ride-sharing, outsourced grocery shopping, etc., immediate user contactability ensures timely service, which is paramount to customer satisfaction.

Always onboard a user to your service with a verified phone number to ensure you have a reliable point of contact.

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Trustworthy & High-value Community (2FA)

A phone number is a long-term user identity; less than 5% of people in the US dispose of their phone numbers.

A user with a verified phone number acts with higher accountability creating a great online community.

Always onboard a user to your service with a verified phone number to create a sense of accountability.

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Retention (Direct SMS)

Don't be forgotten; wow your users with a great offer or handy tip over SMS occasionally.

SMS has the highest open rate at over 90% and a phone number has long lifetime contactability compared to an email, or a mobile app.

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Ease of Re-engagement (One-Time Password)

Some activities are seasonal, like traveling, and users often forget how to login. Don't let this be an opportunity for your competitors to whisk your users away.

Use one-time-passwords (SMS/Voice) to enable your users to re-engage with your service easily.

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User Onboarding

At each phase of new user onboarding (app download, sign up, password selection, etc.), any sort of slight friction in the process may result in the loss of a user.

Make user acquisition and onboarding dead simple: once a user enters their phone number, a link is sent via SMS to verify them while they are directed to your app or website.

Beautifully Simple

Start using RingCaptcha in 90 seconds.


// -- Embed Verification Widget --

<script src="https://ajax.googleapis.com/ajax/libs
/jquery/3.1.0/jquery.min.js"
></script> <script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js"></script> <div id="xyz" data-widget data-app="APP_KEY" data-locale="en" data-mode="verification"></div> <script type='text/javascript'> $(document).ready(function() { var widget = new RingCaptcha.Widget('#xyz', { app: "APP_KEY", events: { // Add JavaScript Callbacks verified: function(event) { alert("Phone number verified!"); } } }).setup(); }) </script> // -- Advanced HTML & JS Documentation -- // https://my.ringcaptcha.com/docs/web




// -- Request a PIN --

curl -X "POST" "https://api.ringcaptcha.com/APP_KEY/code/sms" \
-d "api_key=API_KEY" \
-d "phone=TO_NUMBER"


// -- Verify Phone Number --

curl -X "POST" "https://api.ringcaptcha.com/APP_KEY/verify" \
-d "api_key=API_KEY" \
-d "phone=TO_NUMBER" \
-d "code=PIN"


// -- Advanced API Documentation --
// https://my.ringcaptcha.com/docs/api



												





// -- Coming Soon --




















												





// -- Coming Soon --




















												





// -- Coming Soon --




















												




// -- Sending Direct SMS --

curl -X "POST" "https://api.ringcaptcha.com/APP_KEY/sms" \
-d "api_key=API_KEY" \
-d "phone=TO_NUMBER" \
-d "message=Hi there! This is a test message from
RingCaptcha."


// -- Notes --
// Direct SMS is turned off by default.
// Contact us to enable it on your account.


// -- Advanced API Documentation --
// https://my.ringcaptcha.com/docs/api





												





// -- Coming Soon --




















												





// -- Coming Soon --




















												





// -- Coming Soon --




















												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												




// -- Embed Onboarding Widget --

<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<div id="xyz" data-widget data-app="APP_KEY"
data-locale="en" data-mode="onboarding"></div>
<img src="app-store.png">
<img src="google-play.png">


// -- Advanced HTML & JS Documentation --
// https://my.ringcaptcha.com/docs/web





												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												
Verify your phone number
image description

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												

<script type='text/javascript' src="//code.jquery.com/jquery-3.1.1.min.js">
</script>
<script type='text/javascript' charset='UTF-8' src="//cdn.ringcaptcha.com/widget/v2/bundle.min.js">
</script>

<script type='text/javascript'>
  $(document).ready(function() {
    $('#widget-point').append(
      '<div id="xyz" data-widget data-locale="en" data-mode="verification" data-type="dual"></div>'
    );

     const appKey = "APP_KEY";

     var widget = new RingCaptcha.Widget('#xyz', {
          app: appKey,
          events: {

          verified: function(event) {
                 alert(‘SAY RINGCAPTCHA’);
          }
      }
    }).setup();
												
or integrate with these platforms…
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Labs

We’re always improving…here’s what we’re working on.
  • Incubating
  • In Beta
  • Launched

Launch ‘Signup/Login with Phone’ on your website in 90 Seconds


Click on ‘Verify Me’ and RingCaptcha’s mobile SDK will do the rest

Be armed with a dashboard that helps you detect users that are having trouble verifying their phone numbers

Should your business trust this phone number? Get access to phone number credibility scores!

Automatically reaches out to users who have not completed the 2FA process with voice.

Customized user data collection and validation on login / signup form with cloud-based user data storage in 90 seconds!

Flexible plans for your business.

Premium

$49 per month

$49 credit to send SMS / Voice transactions.
SMS / Voice cost varies per country.
(Add additional credit as needed with auto-refill)

  • Fully Customizable SMS
  • Conversion Rate Optimization
  • Fraud Analytics
  • Custom Sender ID
  • Voice Calls
  • API Access
  • Whitelists / Blacklists
  • Normalization API
  • Direct SMS
  • Premium Support
Start 14 Day FREE Trial

Enterprise

More than 1M transactions per month?

Enterprise plans available with volume discounts, SLAs, & 24/7 support and account monitoring.

Schedule Demo
Startup plan gives you 500 one-time password SMS each month. These SMS are not customizable and do contain advertising.

Real Users, Real Contact in 90 seconds.

Schedule Demo Get Started