Compare Waitlisted to these popular alternatives based on real-world usage and developer feedback.

Intercom is a customer communication platform with a suite of integrated products for every team—including sales, marketing, product, and support. Have targeted communication with customers on your website, inside apps, and by email.

Customer engagement platform for tech savvy marketers sending personalized, data-driven marketing, product, and transactional messages. Ideal for mid-market SaaS, FinTech, EdTech, mobile apps, marketplaces companies, and more.

Freshchat is a modern messaging software built for teams who want to ace customer conversations—marketing, sales, or support.

It is a free and open-source mail transfer agent that routes and delivers electronic mail. It is Wietse Venema's mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support it.

Braze is a comprehensive customer engagement platform that powers relevant and memorable experiences between consumers and the brands they love.

It is a software vendor for free and open-source customer experience management, digital asset management, product information management, multi-channel publishing and e-commerce software.

Autopilot’s intuitive drag and drop Journey canvas allows you to send the right message, on the right channel, at the right time. Automate your marketing, send personalized messages, build workflow and process in Salesforce, and more.

It is the first ECRM–an Ecommerce CRM designed for building personal and profitable relationships with your customers at scale. It uses customer insight, data, and smarter email marketing automation at scale. With the best customer experience, your brand will never blend in.

It is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. It is an excellent choice for both small and large installations. It's fast, simple to set up, requires no special administration and it uses very little memory.

It is a mobile engagement platform that helps forward-looking brands like Grab, Tinder, and Tesco meet the real-time needs of their customers.

It is a free and easy-to-use tool for businesses and organizations to manage their online presence across Google, including Search and Maps. If you verify and edit your business information, you can both help customers find your business and tell them your story.

Vero is an event-driven email marketing platform for engineering, marketing, and product teams - it gives you the visibility and clarity to help you collaborate and move faster in designing and sending emails using real-time customer data.

It is a live chat service which allows you to communicate with your customers easily, also with the help of chatbots. It is designed specifically for the WordPress community.

It adds scheduled sending and the easiest, most integrated email reminders to Gmail, helping you reach Inbox Zero.

250ok is an email deliverability tools company that produces a Software‐as‐a‐Service (“SaaS”) platform to monitor and measure the deliverability of email networks. These networks consist of companies sending various forms of messages including marketing, transactional, share, and others from various platforms.

It empowers digital marketing leaders and business owners with the only #omnichannel customer engagement platform built to accelerate business outcomes.

It is a personalization and engagement solution for businesses and organizations designed to improve sales and drive customer engagement throughout their whole experience.

Threads is an extremely flexible and powerful way to engage customers by building workflows and sending triggered emails.

It helps build lasting business relationships, right from your inbox. A sales engagement platform designed for sales professionals and account managers.

It helps B2B marketers drive new business & expand relationships with high-value accounts by orchestrating human connection at scale.

It is an all-in-one tool for email deliverability to make your Email Channel Reliable. It raises your sender reputation by interacting with real people in any language and helps you to hit the inbox of your prospect. Full automation.

PersistIQ is an all-in-one outbound sales platform. Sales teams use PersistIQ to turn cold leads into sales opportunities.

It offers an omni-channel live chat and AI-powered chatbots to generate more leads for your business and/or delight your customers with advanced customer service.

A data-driven marketing technology company that helps brands acquire more customers, retain them for longer and grow their value.

It is a lead generation platform. Lead generation doesn’t have to be painful. Drive growth with targeted Sales leads and increase sales by quickly finding, connecting and engaging with qualified prospects.
Your transactional email should NOT trigger spam or marketing filters. Flute Mail plugs into your existing API provider to properly isolate segments, boost inbox rates, and safely store your transactional email data.

Pinpoint email issues before you hit "send". Secure your emails from malicious actors and ensure your email delivery to the inbox.

Turn trial users into paid users & inactive users into engaged users with targeted, behavior-driven lifecycle messaging.

Dashly platform helps SaaS companies improve communications with their customers. Convert website traffic through every step of the funnel and reactivate inactive users with live chat, bots, and targeted messages.

It is an easy way to manage your outgoing emails from your apps. From creating and sending your emails to monitoring and managing their stats, you can do really useful things with it without worried about time zone disaverage.

It makes it easy to keep and manage a changelog for your products. Keep your users up to date and engaged with every update your team ships.

It is a conversational lead generation platform. Leadoo helps companies to convert more leads from website visitors.

It offers a simple REST-based JSON API enabling you to thoroughly check and verify email addresses right at the point of entry into your system.

It claims to be a modern multichannel customer support platform. Core features include live chat tool and cobrowsing that adds a personal touch to your service. It’s easy to install and use and has useful features like proactive chat invitations, real-time visitor list, typing insights, saved replies and more. The design can be customized as per your business needs.

Enrich your web application with interactive guides, hints, tips & tricks, and customer feedback without coding.

It is a conversion optimization tool to convert visitors into customers, grow your mailing list, and increase your sales.

It is an Email Tracking for Gmail and GSuite, adds the double check marks to your mail if it is read by recipient (Just like WhatsApp), Receives real-time pop-ups notification on your desktop when your emails are opened.

It is an advanced MTA built to handle the most critical reliability, performance, security, and deliverability requirements.

Cross-channel customer engagement platform enabling teams to improve engagement, reduce churn, increase trial conversions and revenue.

It is a developer-centric, open-source, omni-channel customer engagement platform. It shares the value proposition of other omni-channel customer engagement platforms.

It is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and become a credible sender for any ESP provider.

It is an all-in-one lead generation and sales acceleration service that helps automate customer acquisition with data-driven experiments, making failure impossible.

It simplifies customer data analysis, marketing and support. Our integrated crm, email marketing, live chat, feedback and more allows you to capture, engage and retain your customers from one single dashboard.

It is an open-source omni-channel customer messaging platform. It makes it easy for you to connect with your users through Emails, SMS, Slack, and many other channels. It also includes a no-code customer journey builder with which you can create visual flows describing how, when, and where customers should receive messages.

It is a WhatsApp first, omni-channel engagement platform to attract and re-engage prospects, sell instantly to customers and delight customers through contextual engagement

It helps marketers get the right information in front of the right website visitors and persuade them to take action. With Mulch you: Pull marketing assets from anywhere on-site and make them clearly visible Serve up offers, event information, newsletter sign-up Ask visitors about preferences and intent to help you further personalize experiences Accelerate prospects through the sales cycle Mulch is an easy add-on to your website with Wordpress and other CMS plugins and it’s free (no credit card needed).