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

Outreach Box is an AI-powered sales engagement, marketing automation and email outreach platform designed to help businesses find warm leads, scale outreach campaigns, and close more deals. With intelligent automation, unlimited email outreach, advanced deliverability, AI-generated personalized solution, and real-time campaign analytics, Outreach Box enables sales and marketing teams, agencies, and marketers to increase business reach and automate daily works for better output.

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.

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.

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 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.

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.

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.

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

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

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

Free email verifier & checker to validate email addresses instantly. Reduce bounces and verify emails in real time.

Sidemail is an all-in-one email delivery platform for startups that makes sending emails simple. It has everything for delivering and managing emails – email API, transactional emails, email marketing and automation, contact management, no-code email editor, email templates, subscribe forms, and more. Perfect for teams & developers that want reliable deliverability without the bloat. We're based in the EU and GDPR compliant.

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

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.

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 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.

Saastoast sends real-time push notifications for key SaaS events, trial signups, upgrades, feature usage, churn risks, and more, keeping founders motivated and customer-centric by showing momentum as it happens.

Docutracker lets you see when and how people read your documents, providing real-time engagement analytics to optimize follow-ups.

Aepto is an AI-powered domain monitoring platform built to give full visibility and control over domains spread across multiple providers. Instead of logging into separate registrar, hosting, and email dashboards, Aepto centralizes everything into one clean interface and continuously monitors domain health using public signals and AI analysis. Once a domain is added, Aepto automatically scans the registrar, hosting setup, email configuration, pricing, and renewal details—no APIs or integrations required. It monitors email deliverability, DNS records, website and subdomain uptime, content changes, and suspicious activity such as nameserver changes or lock status updates. When something goes wrong, Aepto alerts you early and clearly explains what happened and which provider to contact. Aepto also helps track domain expenses, visualize spending, assign ROI, organize domains into folders, and customize pricing and provider details when needed. Advanced features include AI-powered domain discovery, domain watch for tracking expiring domains you don’t own, distributed uptime monitoring, and customizable white-labeled status pages with incidents and maintenance updates. Designed for businesses, agencies, and teams that rely on domains for live websites, email, and APIs, Aepto focuses on proactive monitoring and clarity—so nothing breaks silently and small issues don’t turn into bigger problems.

Cursor for Marketing Emails. Email Marketing Platform for SaaS founders

NoimosAI is the all-in-one autonomous AI marketing platform that helps individuals and companies grow their brand and sales. Simply set a goal, and our team of specialized AI agents handles the rest—from research and strategy to execution. It integrates with your existing apps, works proactively across every marketing channel, and delivers personalized, data-backed results.

Picmim is an AI-first social media management platform with an intelligent assistant that acts as a strategic partner for marketing teams, agencies, and SMBs. Our AI helps create data-driven content strategies that drive real growth and engagement, moving beyond simple scheduling to deliver measurable success.

Stacksweller is an innovative tool designed to enhance your Substack experience by allowing you to effortlessly schedule and publish notes. With its automation features, you can grow your audience without the hassle of keeping your laptop on. Discover viral note ideas, maximize your content's potential, and simplify your Substack scheduling process. Ideal for writers looking to engage and monetize their audience effectively, Stacksweller streamlines your contentblob:https://stackshare.io/04f2fe4a-8422-456d-98dc-0aba43066e37 management, helping you achieve Substack growth with ease. Visit us to learn more and take your Substack to the next level.

Stacksweller is an innovative tool designed to enhance your Substack experience by allowing you to effortlessly schedule and publish notes. With its automation features, you can grow your audience without the hassle of keeping your laptop on. Discover viral note ideas, maximize your content's potential, and simplify your Substack scheduling process. Ideal for writers looking to engage and monetize their audience effectively, Stacksweller streamlines your content management, helping you achieve Substack growth with ease. Visit us to learn more and take your Substack to the next level.

AI-driven personalization engine that delivers product and content recommendations, precise targeting for promotions and content, and A/B testing—boosting engagement and conversions across web, mobile apps, and email.

Tired of juggling tools? SmartWebi unifies sales funnels, CRM, marketing automation, scheduling & payments — all in one AI-powered platform.

Zeitblast is a SaaS SMS marketing platform built for real estate wholesalers, investors and local service businesses. It enables compliant outbound messaging, automated follow-ups, campaign tracking, and lead engagement at scale. Users can launch text campaigns quickly while maintaining carrier compliance and operational control.
Ark is the AI first email API. Send transactional emails with native MCP support, sub-second delivery, and 99.9% deliverability.
Self-hosted email marketing platform with Docker deployment. Visual workflow builder, multi-channel messaging, and attribution tracking. Uses MongoDB and BullMQ for job scheduling. Built for teams requiring data ownership and infrastructure control.

Clean, qualify, and personalize your prospect data with AI-powered workflows. Upload your lead list and let Lead Spice do the heavy lifting.