TeleSign vs. ZelNum Comparison


TeleSign	ZelNum	+	+
Learn More Update Features	Learn More Update Features	Add To Compare	Add To Compare


		Related Products Sendbird Sendbird is the omnichannel AI agent platform enterprises choose to elevate customer experience, by initiating autonomous support & sales conversations, keeping humans in the loop for complex inquiries, and re-engaging customers with proactive business messages. Combining omnichannel AI and a battle-tested, award-winning communication APIs, Sendbird enables businesses to build AI agents and meaningful customer connections at scale. Sendbird’s AI-powered customer service platform helps businesses deliver scalable, omnichannel support through intelligent AI agents. These agents work seamlessly across channels like mobile apps, web, SMS, and social media, providing instant and proactive assistance to customers 24/7. With the ability to integrate into existing customer support tools, the platform enhances resolution rates, reduces response times, and improves customer experience by offering a unified view of all interactions. 166 Ratings Visit Website Signalmash Signalmash is a boutique CPaaS built for businesses that need reliable communications and real human support behind every interaction. No tiers. No wait times. Real support for faster development and better outcomes for your customers. Our enterprise-grade customer gets a dedicated Slack channel with our engineers. Direct Tier-1 connections with AT&T, Verizon & T-Mobile. 94% first-time 10DLC approval rate. SMS: 10DLC \| Short code \| Toll-free \| SimplyRCS (simplyrcs.ai): RCS Rich \| RCS Media through API & No-Code Platform Voice: SIP Trunking \| VoIP \| Termination \| Origination Numbers/DIDs: Local, short code & toll-free numbers \| BCID (Branded Caller ID) Number Intelligence/Lookup: Subscriber Info (CNAM) \| Carrier Information \| Carrier Type (Fixed or Wireless) \| Federal DNC Status Signalmash enterprise-grade reliability, boutique-level support. 16 Ratings Visit Website Notifyre Notifyre is a secure online fax and text messaging service for businesses, rated 4.7/5 from 1,187 customer reviews. Pay as you go from 3 cents per fax page and 2 cents per SMS, with no contracts, no hidden fees, and wallet funds that never expire. Why businesses choose Notifyre: - Live chat, phone, and email support from a local U.S. team - A dedicated account manager who guides you through 10DLC registration (the approval US carriers require for business texting) - Free BAA for medical and health organizations, with HIPAA compliance standard on every plan - ISO 27001 certified with AES 256-bit encryption, user access controls, audit trails, and 99.99% uptime Fax features: online fax platform, email to fax and fax to email, fax API, online fax numbers, free fax number porting, and fax broadcast to 20,000+ recipients. Text messaging features: SMS and MMS online, email to SMS, SMS and MMS API, mass texting and SMS marketing, subscriber and opt-out management, bulk contact upload, SMS templates, and personalization fields. Book a 15-min demo for one-on-one 10DLC guidance. 62 Ratings Visit Website iDenfy Powerful, all-in-one identity verification, fraud prevention, and compliance platform. iDenfy protects startups, financial institutions, gambling, streaming, ridesharing, and other digital services from identity fraud using a three-layer identity verification process. The process protects businesses from the most threatening forms of identity fraud. iDenfy also provides services for business verification, proxy detection, fraud scoring, AML screening and monitoring, NFC verification, and other fraud prevention services. Founded before AML, fraud, and GDPR regulations were put into place, iDenfy pioneered identity verification. The company covers users' ID verification process in full, combining AI-based biometric recognition and manual human checks to ensure they are real users. Save up to 40% of identity verification costs using our ID verification software. Pay per successful ID verification and save up to 40% of identity verification services expenses. 277 Ratings Visit Website CrankWheel Share your screen instantly while on a phone call with CrankWheel, for an engaging presentation. Send a link by text message, WhatsApp or email and the viewer can view it in any browser, on any device without installing anything. Designed for ease of use, CrankWheel is the best solution for sharing a screen with customers for business deals. CrankWheel is used to complement calls by insurance agents, mortgage advisors, solar advisors, digital agencies, educators and customer support specialists. Close deals on the first call! We show you whether they're paying attention. Over 50,000 users share their screen effortlessly with any prospect no matter their technical skill or device choice using our Chrome Extension. CrankWheel works over bad network connections, on obscure devices and old browsers. Mac, PC, iOS, Android, Internet Explorer, Blackberries - it always works! 229 Ratings Visit Website Eurekos Eurekos is the customer training LMS built to educate the world outside your organization – partners, distributors and resellers. Most companies spend years perfecting their product, then hand customers a repurposed employee training course and hope for the best. When those customers churn, the product gets the blame. Usually, the training is the problem. Eurekos fixes that. We help you turn customer education from a cost into a revenue stream, by selling courses, accreditations and learning paths directly through the platform. The same thinking runs through the entire LMS – from customizable customer portals to certifications, eCommerce, built-in content authoring and ISO/IEC 27001 & 27701-certified security. Our smart learning assistant, Saga AI, powers deep content discovery (including inside SCORM files). Everything you need to run a world-class external training operation. It's why we’re trusted by 500,000+ learners across 100+ countries worldwide. 96 Ratings Visit Website ActiveCampaign ActiveCampaign is the autonomous marketing platform that transforms how marketers, agencies, and business owners work. Use Active Intelligence to power goal-aware automations and orchestrate personalized experiences across email, SMS, and WhatsApp. Within a single tool, you get real-time reporting and proactive optimizations in addition to market-leading deliverability and integration with 1000+ apps. With a user-friendly interface and a comprehensive suite of features, ActiveCampaign's platform is powerful, accessible, and designed to scale with your business. It's also easy to get started: While traditional tools force teams through long setup cycles and training, ActiveCampaign delivers measurable lifts in engagement and conversions in days. 89% of surveyed customers say the platform meets their business needs better than the competition, and 88% say ActiveCampaign delivers value faster than competitors. Read our ROI report for methodology 17,291 Ratings Visit Website Sogolytics Sogolytics delivers speed, clarity, and scale through a powerful platform built for enterprise teams managing customer journeys and employee engagement surveys. Sogolytics streamlines the entire feedback cycle, from intelligent survey creation to real-time dashboards and automated text analysis. Whether your team is using the customer experience platform, employee engagement software, or the free survey maker, Sogolytics provides intuitive features, powerful analytics, and unmatched customization. Design sophisticated customer experience management flows in minutes. Automatically adapt questions based on logic and earlier responses. Pre-fill messaging based on user data. Then, visualize the results immediately. With sentiment analysis, turnkey reports, and real-time dashboards, your team can go from data to decisions in record time. Sogolytics’ survey software has a refreshingly human support model, available 24/7 and whenever you need a partner, not just a platform. 869 Ratings Visit Website Plauti For Salesforce and Microsoft Dynamics 365 CE teams who want to run reports, automation and AI only on data they can trust, Plauti is the native data-quality platform that diagnoses, cleans and makes data actionable without it ever leaving the CRM. Unlike bolt-on tools that export your data or native features that stop at detection, Plauti gives configurable, governed control across Salesforce and Dynamics — so the AI, analytics, and revenue engine on top can finally trust the data underneath. 124 Ratings Visit Website GetResponse GetResponse is a lifecycle automation platform for businesses that want to drive more consistent, repeatable revenue across the entire customer journey. We help you move customers from first touch to first purchase, repeat purchase, and reactivation - using email, SMS, push notifications, and lifecycle automation across every stage of the customer journey With built-in deliverability, behavioral triggers, and deep integrations, you can launch faster, reduce manual work, and turn your lifecycle into a predictable revenue system. No disconnected tools. No campaign chaos. Just one system designed to move customers forward. 1,798 Ratings Visit Website
About Deliver timely, personalized information through global SMS/RCS and voice cloud communications. Gain a deeper understanding of your customers from actionable global phone number and subscriber data intelligence. Code once and message your customers at scale using TeleSign’s Messaging API - complete with waterfall delivery between channels. TeleSign Messaging API includes SMS, RCS, and WhatsApp to help you build secure digital communications that connect you with your customers anywhere in the world. Integrate a single Messaging API and start sending reliable, secure SMS, RCS and WhatsApp messages to your customers today. Choose one or all three channels to broaden your programmable messaging strategy and expand your audience. Reach more customers with 120+ optimized points-of-presence and 700+ direct-to-carrier routes.	About ZelNum is a web-based verification and data-cleansing platform for businesses, sales teams, marketers, and developers. It helps users verify WhatsApp, Telegram, and phone numbers, check carrier and line-type information, and enrich contact records with country and phone data. Users can run individual checks, upload CSV or TXT files for bulk processing, or connect through the API for automated workflows. With more than 40 verification checks available, ZelNum helps teams clean contact lists, improve data quality, qualify leads, prepare outreach campaigns, and review potential risks. Free manual tools are available, while paid checks use transparent pay-as-you-go pricing with no subscription required. ZelNum provides verification signals, not identity proof, and should be used only with authorized data.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Companies interested in a CPaaS, SMS, and phone number verification solution	Audience Sales and marketing teams, CRM and operations teams, lead-generation agencies, developers, and businesses that need to verify, clean, and enrich contact lists at scale.
Support Phone Support Not Supported 24/7 Live Support Supported Online Not Supported	Support Phone Support Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos No images available
Pricing No information available. Free Version Not Supported Free Trial Supported	Pricing Pay-as-you-go Free Version Supported Free Trial Not Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported
Company Information TeleSign Founded: 2005 United States www.telesign.com	Company Information ZelNum Founded: 2026 Hong Kong zelnum.com
Alternatives Twilio Voice Twilio	Alternatives NumberChecker.AI
Twilio Verify Twilio	1Lookup
Twilio	Data8
Vonage Communications APIs (Nexmo) Vonage	Informatica Phone Validation Informatica
Bird View All	iDenfy View All
Categories Chat SDK & API Supported Cloud Communication Platform Supported Communication APIs Supported Communications Platform as a Service (CPaaS) Supported Customer Engagement Supported Customer Onboarding Supported Fraud Detection Supported Phone Verification Supported Risk-Based Authentication Supported SMS API Supported SMS Gateways Supported Transactional Email Supported Voice Calling API & SDK Supported	Categories Phone Verification Supported
Show More Features Cloud Communication Platform Features Audio / Video Conferencing Not Supported Call Center Supported Call Recording Not Supported Call Routing Supported Chat / Messaging Supported Fax Management Not Supported File Sharing Not Supported IVR / Voice Recognition Supported
Integrations WhatsApp Supported AppMaster Supported Delinea Cloud Access Controller Supported DentalTap Supported Fraud.net Supported Microsoft Dynamics 365 Marketing Supported Next Identity Supported Quickwork Supported Rayven Supported Telerivet Supported Viber Supported Workers by Delos Supported Wufoo Supported Show More Integrations View All 13 Integrations	Integrations WhatsApp Supported AppMaster Not Supported Delinea Cloud Access Controller Not Supported DentalTap Not Supported Fraud.net Not Supported Microsoft Dynamics 365 Marketing Not Supported Next Identity Not Supported Quickwork Not Supported Rayven Not Supported Telerivet Not Supported Viber Not Supported Workers by Delos Not Supported Wufoo Not Supported Show More Integrations View All 1 Integration
Claim TeleSign and update features and information Claim TeleSign and update features and information	Claim ZelNum and update features and information Claim ZelNum and update features and information