Compare Sellio vs. UserStak

Zendesk serves as a robust customer service platform aimed at optimizing support processes and improving the overall experience for customers. With an extensive array of features such as automated AI tools, messaging, live chat, and customizable workflows, it empowers companies to deliver tailored and effective support through various channels. The platform also integrates effortlessly with other applications and offers real-time analytics, enabling organizations to make informed, data-backed choices. Designed to accommodate businesses of any scale—from emerging startups to established corporations—Zendesk prioritizes scalability, security, and the satisfaction of its users. Ultimately, its versatile solutions ensure that companies can adapt their customer service approach to meet evolving demands efficiently.

Trusted by over 25 million users worldwide, Jotform is an all-in-one platform that simplifies data collection, workflow automation, and online sales, all without coding. With Jotform’s drag-and-drop Form Builder, businesses can create customized forms and surveys to collect leads, contact information, payments, appointments, and e-signatures with ease. Choose from over 10,000 templates for everything from feedback surveys to registration forms, or build your own from scratch. Jotform's advanced features, such as conditional logic, autoresponders, and over 200 integrations, further streamline processes. In addition, Jotform's AI-powered Agents offer real-time customer support by guiding users through the form submission process, answering questions, and ensuring a smooth experience, all while reducing the need for manual intervention. With Jotform’s Store Builder, you can also set up an online store, sell products, services, and subscriptions, collect donations, and receive payments through 30+ supported payment gateways. Finally, Jotform’s tools like Approvals, PDF Editor, and Report Builder help businesses transform collected data into actionable insights and automate workflows for even greater efficiency.

Forethought is the most advanced generative AI agent for customer support and your 24/7 AI team member. Trained on your unique data sets and upholding the highest security protocols, Forethought delivers natural conversations through AI and eliminates inefficiencies to improve response times, resolution rates, and customer satisfaction scores at every interaction. - Add an AI Agent that is a 24/7 team member, reducing workload so your team can focus on delivering exceptional support. - Only Forethought ingests historical and current ticket data for AI specific to your business needs to deliver a personalized experience. - We're not just about meeting privacy standards – we're setting them, to keep you and your data secure every step of the way.

CTM is a cloud-based conversation analytics and lead management platform designed to connect marketing attribution with customer communications and sales outcomes. Formerly known as CallTrackingMetrics, the software provides call tracking, conversation intelligence, lead routing, and contact center functionality. Its call tracking technology uses dynamic number insertion to attribute incoming calls to specific advertising campaigns, keywords, websites, and marketing channels. The platform also tracks SMS conversations, website form submissions, and online chats to provide a consolidated view of customer engagement. AI-powered analytics automatically transcribe, summarize, score, and analyze conversations to identify customer sentiment, purchasing intent, and potential sales opportunities. CTM includes AI voice agents that can answer inbound calls, qualify prospects, schedule appointments, and route inquiries to appropriate team members. Workflow automation tools support lead distribution, customer follow-ups, notifications, and CRM updates based on configurable business rules. Its reporting capabilities include real-time dashboards, advertising ROI analysis, agent performance monitoring, and campaign attribution reports. CTM integrates with marketing, analytics, and CRM platforms through native integrations, APIs, webhooks, and customizable automation tools.

Customer experience shouldn't run on disconnected tools and static scripts. Dialpad Contact Center brings voice, digital channels, and human agents together in a single AI-native platform, built to act — not just record — on every customer interaction. This is Agentic AI in practice: agents that reason through a problem, take the next step, and drive it to resolution without waiting on a human to intervene. Where legacy systems leave data trapped in silos, Dialpad Contact Center closes that gap, linking voice and data so context travels with the customer instead of getting lost between systems. The payoff compounds. Dialpad has already generated over 775 million AI recaps, and each new interaction adds to a growing base of operational intelligence — sharper resolution paths, more productive agents, better outcomes quarter over quarter. None of it runs unchecked: Dialpad's Guardian layer keeps AI operations secure and governed, so intelligence scales without sacrificing oversight. In practice, that means up to 80% of issues get resolved autonomously, freeing your team to focus on the conversations that genuinely need a human. Intelligence works at the edge; people stay at the center of the experience. And you don't have to take the ROI on faith. Through Dialpad's Proving Ground, enterprises can validate performance and cost savings before rolling out at scale — a far more reliable path than betting on a brittle, rules-based bot.

The ultimate uptime monitoring service. Get 50 monitors with 5-minute checks completely free. Set up in seconds and stay informed about your website’s health at all times. Website monitoring: Get instant alerts when your website goes down. Reliable and accurate monitoring helps you fix issues before they affect users and prevent revenue loss. SSL certificate monitoring: Avoid losing visitors due to expired SSL certificates. Get notified 30 days before expiration so you can renew in time. Ping and port monitoring: Check if your server is online or if your email service is running on port 465. Monitor any port you need with real-time alerts. Cron job monitoring: Track scheduled tasks with heartbeat monitoring. We verify if the request arrives on time, making sure server-side jobs and internet-connected devices are running properly. Status pages: Create up to 100 branded status pages, protect them with a password, and allow subscribers to receive updates. Stay informed with email, SMS, voice calls, push notifications, or integrations with Slack, Zapier, PagerDuty, Telegram, Discord, Microsoft Teams, Google Chat, and more. Maintenance windows: Pause monitoring when you schedule downtime to avoid unnecessary alerts

3CX is an open-standards, software-based IP PBX that provides complete Unified Communications right out of the box. 3CX is suitable for all industries and sizes. It can provide everything you need, from mobility and status to advanced call center features and more, at a fraction the cost. 3CX is ideal for remote companies and includes mobile apps, video conference, and website live chat. The installation, management, and maintenance of the PBX are so simple that you can easily manage it yourself, on your own appliance, server, or on a cloud-based platform. You can also choose to have it hosted on 3CX for an easy solution.

ActiveCampaign is an autonomous marketing platform that revolutionizes the workflows of marketers, agencies, and entrepreneurs. The platform powers forms, landing pages, email, SMS, WhatsApp, automation, and a CRM, as well as the ability to integrate with over 1000 applications. With Active Intelligence, it's easy to create personalized, engaging, data-driven marketing campaigns. Other platforms focus on reporting past failures; ActiveCampaign’s Active Intelligence swiftly flags potential problems and creates opportunities proactively. Predictive insights and goal-driven AI agents replace dashboards and guesswork. Within a single tool, you get real-time reporting and proactive optimizations in addition to market-leading deliverability. That means you can act on insights faster, easily streamline processes, and drive growth for your business. By combining a user-friendly interface with a comprehensive suite of features, the platform is powerful, accessible, and designed to scale with your business. It's 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.

Dun & Bradstreet’s ChatD&B offers a powerful, AI-driven chat interface that simplifies how organizations research and assess companies. Instead of traditional complex filtering, users interact naturally by asking questions in their own words to receive tailored insights such as company financials, risk scores, and market data. The platform taps into the vast Dun & Bradstreet Data Cloud to deliver real-time, reliable information that supports smarter, faster business decisions. Enhanced features include visibility into the data sources behind results, chat history for audit trails, and quick answers to product-related queries. ChatD&B is designed to optimize workflows across sales, finance, and risk management by providing instant access to trusted company data. It helps teams discover new opportunities, evaluate customers, and make confident decisions all through easy chat conversations. The platform also enables better compliance and verification by allowing users to track and reference past interactions. With ChatD&B, organizations can accelerate growth and reduce operational friction.

SearchUnify is an enterprise Agentic AI platform built to transform customer support through autonomous, intelligent operations. Powered by SearchUnifyFRAG™ (Federated Retrieval Augmented Generation), the SCORE framework, and Agentic RAG, the platform unifies siloed enterprise data to deliver contextually accurate, real-time responses across the support lifecycle. Its core product suite includes Cognitive Search for AI-powered retrieval across fragmented knowledge sources, SearchUnifyGPT™ for cited generative AI answers across every support touchpoint, SUVA (Virtual Assistant) for autonomous multi-turn query resolution, Knowbler for knowledge creation and management, and Agent Helper for real-time AI assistance during case resolution. The Agentic AI Suite deploys eight purpose-built agents across the support lifecycle. The AI Support Agent handles end-to-end self-service case resolution. The AI SupportPlus Agent autonomously resolves CRM tickets, initiates clarification loops when context is missing, and hands off complex cases with full context. The AI Classification Agent manages real-time case tagging and routing. The AI Escalation Manager predicts and mitigates escalation risk. The AI Knowledge Agent automates knowledge creation and identifies content gaps. The AI Competency Agent resolves complex L2 technical workflows autonomously. The AI Agent Partner provides in-the-moment guidance to support teams. The AI Case Quality Auditor evaluates 100% of closed cases for continuous improvement. The platform supports BYOLLM, Model Context Protocol (MCP), and a governance layer with role-based access control, PII masking, and compliance with ISO 27001, HIPAA, and SOC 2. It integrates with 100+ enterprise platforms including Salesforce, Zendesk, and ServiceNow.