RingCaptcha Alternatives (September 2025)

Unlock meaningful conversations across the customer journey with programmable SMS, voice, email, video, & verification APIs!

Validate users across SMS and preferred channels at scale with the Twilio Verify API, a turnkey, passwordless authentication solution that enables seamless and secure user onboarding, reduces fraud, and optimizes delivery rates without the heavy lifting. Twilio handles all your connectivity, channels, OTP generation, and more—so you don’t have to.

Connect with customers on their preferred channels—anywhere in the world. Quickly integrate powerful communication APIs to start building solutions for SMS and WhatsApp messaging, voice, and email.

Sell more w/ a bulk SMS service, email marketing, TTS, 2FA, voice calls & messaging apps integration w/ advanced API communication platform.

Sumsub - Identity verification platform to secure the whole user journey ✔️Verify users, businesses or transactions, all while managing cases and deterring fraud ✔️ Highest pass rates ✔️2000+ clients ✔️Book a free demo now!

AI-powered identity verification platform for end-to-end user onboarding with industry-best pass rates. Combat fraud and ensure compliance. Book a demo now!

With many people opening your messages, boost customer engagement and satisfaction. Send promotional or transactional SMS.

Communications API for chat, AI chatbots, SMS, WhatsApp, voice, video, KakaoTalk, and in-app notifications with Sendbird's all-in-one communications API platform.

ValidSoft | Voice Biometrics | Protect conversations & data from unauthorized access Verify identity reliably, & easily with a secure friction-free solution

Real-time online age verification service compatible with all major ecommerce platforms. Identity verification through public records or photo upload. Age verification plugin and API available.

Vonage APIs (formerly Nexmo) offers communications APIs, a global platform and expert support—empowering you to create exceptional customer experiences.

APIs Delivering Global Verification and Programmable Communications as a service. SMS, Voice, and phone number intelligence solutions. Get started now.

Geetest's CAPTCHA - a user-friendly CAPTCHA powered by AI. Protect your website and mobile apps against bot traffic. Start your free trial now!

Incode offers the world's most advanced identity verification & authentication system. Power a world of trust with simple, secure & fast identity experiences.

Experience the world's most flexible age verification & identity verification platform. Deploy multiple methods exactly to your spec.

Quickly integrate passwordless authentication for web and mobile applications to give users a smooth, secure login experience.

MTCaptcha: GDPR-compliant enterprise captcha service prioritizing accessibility and privacy. Offering advanced AI security, it serves as a cost-effective alternative to reCAPTCHA v2 and v3. Trusted by enterprises, small businesses, and startups alike for bot protection, prevention of human abuse, and fraud mitigation. As an independent captcha service, MTCaptcha is utilized by global enterprises. Hundreds of enterprises rely on MTCaptcha to safeguard their online services

Start sending transactional and marketing email in minutes. Easily scale to enterprise-volume with Twilio SendGrid’s Email API. Try it free!

An all-in-one online platform helps businesses send and receive SMS messages, make calls, and send and receive faxes globally.

SMS texting service for business text messaging. Use our SMS software for business texting and SMS campaigns. Start texting online today with Text Request.

Identity verification service for user onboarding. Mitigate fraud with instant ID verification. Meet Know Your Customer, AML regulations.

Enterprise grade AI security platform with a privacy focus. Replace reCAPTCHA v2, v3, or Enterprise with next generation tech at better value. Used by millions.

Prevent fraud and detect bots confidently with IPQS fraud detection solutions including bot detection, proxy detection, & email validation. IPQS fraud prevention tools detect fraud, bad bots, high risk users, and fraudulent transactions.

Trulioo is the leader in global identity verification providing instant online identity proofing for over 5 billion people in 195+ countries.

Protectimus is a two-factor authentication (2FA) platform provided as a cloud MFA and on-premises, we offer multi-factor authentication based on OATH standards

Vonage offers flexible and scalable voice, messaging, video and data capabilities across Unified Communications, Contact Centers and Communications APIs.

Spoof-proof location verification used by trust & safety teams to authenticate customers throughout their digital journey and increase digital trust.

Plivo’s SMS API and Voice API platform enables businesses to communicate with their customers on a global scale. Sign up for free now.

Online ID verification service to help any business, from any industry, collect, verify, and manage user identities throughout a customer lifecycle.

UserLock protects AD identities with 2FA, SSO and real-time access management to enable secure access to the network and cloud applications, from anywhere.

Secure and scale your product with Stytch's identity platform. From authentication to fraud protection, we have the APIs and SDKs for your use case.

Streamline business communication with RingEX. Enjoy unified communications and collaboration with our all-in-one solution.

Build your very own omnichannel customer engagement platform with a no-code builder or customize it with Video, Voice, SMS, and chatbot APIs from EnableX.

Marketing Campaigns makes it easy to design, test, optimize and scale email campaigns. Reach the inbox with Twilio SendGrid. Try it free!

Ensuring KYC/AML Compliance while preventing customer drop-offs for businesses across the globe while verifying identities in real-time and converting more customers.

SendHub offers bulk text messaging and marketing for businesses to manage their SMS campaigns. Finally, business communication services made easy.

Empower your workforce with SDO's Authentication Platform for the ultimate Passwordless MFA experience. Detect, prevent, and secure access with ease!

Telzio provides cloud-based phone systems with a modern interface and scalable pricing. Complete end-to-end solution with powerful call routing features.

Create trust at onboarding and beyond with an AI-powered digital identity solution. Onfido enables hundreds of businesses to know their customers online.

Start your Free Trial today. Secure access to networks, servers, VPNs, and applications using Two-Factor Authentication (MFA/2FA).

HYPR's identity security solution empowers you to continuously detect, prevent, and eliminate identity-related risks for your workforce and customers.

Fight fraud, maintain compliance and onboard online customers faster with Jumio's industry-leading identity verification platform.

Strong authentication, without the passwords.

Global customer identity verification & fraud prevention for the payments, ecommerce and financial services industries. Trusted by 2,000+ companies worldwide.

IDMERIT provides fast and accurate Digital Verification. Identity Verification Solutions helps verifying your customers Online and Keeps your business safe, secure and compliant while maximizing ROI with Id Verification Solutions.

Create seamless identity verification & onboarding experiences without making your customers (or staff) jump through hoops.

Stop bots and manual spam from reaching you or your customer. All with high accuracy and privacy.

The modern way of proving identity. Trusted by 1,000+ leading companies to reduce fraud and improve consumer experiences, Prove is the world's most accurate ...

Faceplugin is an ID verification solution provider using advanced face recognition, liveness detection and ID document recognition technologies.

Highly automated identity verification for fraud prevention, compliance and safeguarding your customers. Build trust, transparency online and drive more growth.

MightyCall is a fast and secure virtual phone system that provides online phone numbers for business. Test drive 30+ VoIP features with a free trial today.

Get your message across. One account, so many ways to send.

Meet SuprSend, a notification infrastructure to help developers build and manage notifications on all channels - sms, email, push, slack, chat and more - design once and send to all channels with a single API.

Prevent fraud and onboard more users with advanced AI-powered & private identity verification solutions for businesses. Get a Free Demo!

Highest-rated 3D Face Authentication for iOS, Android & Webcam, with NIST/iBeta Level 1&2 Certified Anti-Spoofing.

The all-in-one solution for all your business texting needs - marketing campaigns, two-way SMS chats, notifications, and staff communication.

The home of the company that made phish-proof MFA 'a thing'. Not only phish resistant but demonstrably phish-proof. No second device. Deploy in 15 mins!

Grow your business with virtual phone numbers, IVR, voice broadcasting, mass text messaging services and power dialing. Try CallFire for FREE!

Microblink creates amazing experiences to verify users at scale and automates your document-based workflow with AI technology. Let’s get in touch.

Power fully-automated risk decisions with the world’s most complete view of customer digital identity.

Get a free video meeting solution with built-in messaging, mobile app, tip-top security and more. All from a provider trusted by over 400,000 businesses.

MiniAiLive offers solutions for identity verification and biometric authentication. Enhance security with MiniAiLive. Get started today!

All-in-one KYC & AML blockchain and banking compliance solution. Verify customers identities and streamline customer on-boarding process.

Data Zoo is an online identity service verifying customers instantly and providing global data coverage. Keeping information protected and systems secure.

Callture is among top business phone service providers providing innovative UC tool including chat, video conferencing & text that attracts potential customers.

Use the text messaging service 17,000+ businesses trust. Send SMS marketing campaigns, receive texts, and message one-on-one.

CryptoPhoto is an authentication security provider. It's a faster, higher-security replacement for passwords and also replaces 2FA, MFA, OTP, SMS, etc. It also addresses human-factor risks like social-engineering, phishing, malware and scams, and is NIST SP 600-63-3 AAL3 complaint (the highest possible assurance level).

Okta's Workforce and Customer Identity Clouds enable secure access, authentication, and automation—putting identity at the heart of business security and growth.

Cisco Duo is a user-centric zero-trust security platform with two-factor authentication to protect access to sensitive data for all users, devices, and applications.

Token of Trust protects orders, prevents fraud, and maintains compliance for eCommerce sites. Get Identity Verification and more in our suite.

LoginRadius is a customer identity solution that manages user authentication, identity verification, social login, SSO, login security & more.

Kasada transcends bot management with a radical approach to defeat automated threats and online fraud. Web and API protection that lasts.

No code user authentication platform for React, Node, Python, Go and Webflow powered websites, with one-click passwordless logins and expert setup help.

Telnyx offers solutions tailored to your industry needs, from AI to call tracking. Enhance your business capabilities with our specialized solutions.

Engage your customers and prospects with simple drag and drop email, SMS, chatbot or build custom solutions with the best in class APIs

Onboard companies of any size in just a few lines of code.

Engage your customers and prospects with simple drag and drop email, SMS, chatbot or build custom solutions with the best in class APIs

Build real time chat, voice and video calling experience with CometChat's flexible SDKs, APIs & UI Kits. Sign up now!

Featuring fast registration and powerful tools, EZ Texting is the best mass texting service for sending bulk SMS marketing messages and MMS messaging. Start your free trial today!

Boost your marketing with QRCodeChimp, rated the best QR Code Generator and Management Platform for businesses! Easily create custom QR Codes with logos for free, and take advantage of features like advanced analytics, bulk uploads, and diverse QR shapes. Our comprehensive platform supports Digital Business Cards, QR Codes for URLs, social media, and much more. Optimize your digital presence and drive engagement effortlessly.

Monitor. Manage. Mitigate. Caller ID Reputation provides comprehensive health monitoring of your company’s outbound phone call connections.

Secure your workforce, customers, and partner data with our modern IAM platform at a price that works with your budget.

Make calls, send messages, and make the data-based decisions with Ringostat ★ Ringostat — everything is made to boost your sales: intelligent business phone solution, callback, call tracking, end-to-end analytics. Trusted by teams everywhere.

MSG91 cloud communications platform integrates cloud-based voice, video, messaging, chat, & collaboration into any app, service, or business process. Request a demo for cloud based communication today!

Optimal IdM is an global provider of Identity and Access Management (IAM) Solutions and Services. View our award-winning suite of IAM products today.

Seamless and secure online experiences are built with BioCatch behavioral biometrics. We’re more than just fraud prevention. Our solution powers your digital growth.

Looking for a business text messaging software that will help you stay connected with your customers? Look no further than Avochato! Our easy-to-use platform makes it simple to send and receive text messages.

Random email address and phone number generators. Use SMS and email in otp tests, 2fa verification, and marketing.

Infinite Connect offers powerful unified cloud communications as a service, team collaboration tools, and VoIP phone service for business.

Mobile Text Alerts allows you to send mass texts to your customers & employees with no hassle. Get started for free & create your text alert system in seconds.

Engagespot is a notification infrastructure that helps developers build delightful multi-channel communication experiences in their web and mobile apps.

Sign yourself or get documents signed. Easy, secure, legally binding and free.

Build a seamless and secure digital experience for your customer using Okta’s customer identity and access management (CIAM) solution.

Verify your email list in minutes, or integrate real-time email verification into your app with our API. Over 18 billion emails verified. Get started for free.

Entersekt is how the financial world can finally access one cross-channel platform for secure, frictionless authentication of customers and payments alike.

We help you with Identity verification technology for customer verification, & depositing checks virtually, with Mobile Deposit. Learn more about our services!

The Real-Time Engagement Platform for meaningful human connections. People engage longer when they see, hear, and interact with each other. With Agora, you can embed vivid voice and video in any application, on any device, anywhere.

Upgrade your small business with our top-notch VOIP phone systems.Explore our range of small business phone systems for sale now!

Convert more B2B customers with our authentication SSO solution. A few lines of code to be SSO-ready, and you can start working with enterprise customers