SuprSend Alternatives (September 2025)

The world’s leader for customer messaging including mobile push notifications, web push, SMS, email & in-app messaging. Trusted by 1 million+ developers.

Integrate in minutes and send transactional emails via our REST API or SMTP. Scale with our reliable global infrastructure and deliver emails to your customer's inbox instantly.

Email API and SMTP relay to not just send and measure email sending, but also alert and optimise. We provide you with tools, expertise and support needed to reliably deliver emails to your customers inboxes on time, every time.

Start sending emails with our top-rated service. Sign up for free now to streamline your email sending process with API or SMTP.

Take your marketing to the next level​ with the leading self-serve Customer Engagement platform for cross-channel experiences.

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

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

Boost your business revenue with engaging messaging powered by the Pushwoosh omnichannel customer engagement platform.

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

Courier is a notification API built for developers. Design once, and deliver to any channel – email, Slack, SMS, push, and more – all through a single API.

Novu empowers developers and product teams to collaborate seamlessly on notification management. Its unified platform provides centralized content, type-safe schemas, and reusable components, facilitating efficient workflows. With code-first and no-code tools, teams can easily customize and deploy notifications across multiple channels like email, SMS, push, chat, and in-app. Novu enhances communication, reduces friction, and ensures reliable, scalable, and personalized user experiences while maintaining full visibility and control over notifications.

Elastic Email is a marketing platform, built on the most cost-effective delivery engine. Join tens of thousands of companies, which already send their emails!

Helping brands creating moments of delight. Because every superhero needs a sidekick.

Re-engage users with web and mobile push notifications. Test our feature-rich, GDPR-compliant solution today and enhance your communication strategy.

Grow your in-app subscription revenue with reliable purchase backend, real-time subscription analytics, and no-code monetization tests, all in one place.

Integrate seamlessly with Netcore's Email API for scalability, high deliverability, & real-time analytics. Designed for developers.

​​Multi-channel marketing automation platform with email, web push, SMS, and chatbots for Facebook, Telegram, WhatsApp, and Instagram — all combined in a free CRM.

Everything you need for more successful email delivery and performance management, from simple sending tools to deeply informative reporting.

Send bulk, transactional, & marketing emails with our easy-to-use and reliable SMTP. Check the quality of email and improve delivery. Get started for free!

Advance your app's capabilities: Integrate LinkedIn and WhatsApp for streamlined messaging and improved user experience.

SmartEngage offers Cross-Channel Marketing Automation and Broadcast for Email Newsletter, SMS, Facebook Chat Bot, and Push Notifications.

Simple, scalable and reliable. Hosted realtime APIs loved by developers and trusted by giants. Build live dashboards, notifications, geotracking, chat and more.

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.

Textedly is an easy text message marketing (SMS) platform. Increase revenue and mass communication using automated, bulk texting services.

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

Receive messages from various services, get notified in chatting apps, via web push, SMS, and voice calls. Notify.Events is the best service for collecting and managing notifications.

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

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Mailosaur removes the frustration of testing everything a user might do. 
Test password resets, replies, two-factor logins, and more.

Send targeted web push notifications to re-engage your website visitors. Supports all major browsers including Safari, Firefox & Chrome.

Use Mailmodo to create and send interactive emails your customers love. Drive conversions and get better email ROI. Sign up for a free trial now.

Mailercloud is the ultimate platform for growing businesses, offering smart and intuitive email marketing tool to help you thrive in the digital world.

PushEngage is the world's best push notification service that works on both desktop browsers and mobile devices, trusted by 25,000+ happy customers!

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

Loops makes email marketing for modern SaaS companies easy. It's the best way to create, send and track beautiful email campaigns.

Email delivery, perfected with Mailtinni! 💌 Your new SMTP service: fast, reliable, highly secure. 🚀

| Web push, Heatmaps, AB Testing, Analytics Software.

Access the best tools available in email, helping your newsletter scale and monetize like never before.

Create emails with ease using Dyspatch's email builder software. Our interactive email builder helps you design emails for any purpose.

AiSensy is the Smartest WhatsApp Engagement Platform based on official WhatsApp Business APIs. Broadcast offers, automate notifications & solve for support.

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

Apphud is a platform to build, measure and improve iOS and Android auto-renewable subscriptions. Start using mobile app analytics tool for free today.

Newsletter software for people like you.

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for devolopers by developers. Try for free

Engage your customers like never before with CleverTap’s all-in-one customer engagement platform. From personalized messaging to automated campaigns, CleverTap platform offers a suite of powerful tools to help you connect with your audience at every stage of the customer journey. Get started with CleverTap today.

Rock-solid reputation and a reliable API with endless possibilities for sending your transactional emails.

🚀Boost your text message marketing with speeds up to 1000 SMS per second. FREE Trial and instant FREE Text Number, start today...

The best Shopify web push notification app to market your sales and products, recover abandoned carts, and send personalized promotions. Convert one-time store visitors into subscribers, send promotions directly to their device screens, and increase conversions.

Learn how to use Mailchimp Transactional Email to send targeted and event driven messages to anyone, fast—with best-in-class deliverability.

Business Messaging with a Personal Touch

SMTP email relay service that is powerful, secured and reliable. Send better transactional emails and integrate easily with our email API.

Pushly’s push notification platform creates First Party data which drives return visits, increases subscription rates, and generates multi-channel revenue.

Unlock deeper deliverability insights, more efficiency and supercharged performance with the complete email package. Our email signals platform provides visual renderings and deep insights on your program's performance, paired with a best-in-class professional services team. So you can land every send.

Salesmsg is a texting platform with all the software, integrations, and resources you need for SMS marketing, sales outreach, customer service and your business.

Attentive is the most comprehensive personalized text messaging solution. 99% open rates, 30%+ click-through rates, and 25x+ ROI.

Eliminate long lines with our waitlist app, reservations booking system, and powerful 2-way customer SMS. Try it free today.

Litmus is the all-in-one email marketing platform that provides the tools and solutions your team needs to make every send count. Try for free today!

Discover the Best SMS Marketing Software Platform for your business. Increase customer engagement with our Text Message Marketing Software. Sign up for our free trial now.

StoryPorts is a modern email design studio that helps content creatives to build agile messages, liberated from the challenges of design and testing.

Receive highly-available, low-latency publish-subscribe (pub-sub) notifications to Oracle Functions, email, SMS, and partner endpoints, including Slack, PagerDuty, and ServiceNow.

Explore HandySends SendGrid Email API transactional email service! Discover its features, pros, and cons to send transactional emails.

PushAlert allows you to send push notifications to your website subscribers on Chrome, Firefox and Safari. Signup for free and send unlimited notifications.

Communicate with customers via the channel of their choice – SMS, social and integrations. All via our messaging platform for businesses. United States

Resolve critical product and downtime issues before your customers are impacted. Zenduty integrates with all your monitoring tools and alerts your engineers via Phone, Slack, Push notifications, Email, SMS, and Microsoft Teams. You can organize all your incident communications, manage your on-call, brings in all your playbooks, and analytics in one place, and resolve incidents blazingly fast.

Explore AuthMailer transactional email service! Discover its features, pros, and cons to send transactional emails.

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.

Incidents in your systems? Automatic notification for your operations center Incidents in your systems? Automatic notification for your operations center Integrate your monitoring alarms, classify them and notify your team in real time using 24Cevent, with phone calls, email, Whatsapp, Slack, Teams, among others. Try it now! A key player for teams around the world

Trigger thousands of messages in minutes. Integrate seamlessly. Only pay for what you need. Try Brevo's Messaging API for free — no credit card needed.

MILVUS Centralize o atendimento e aumente a produtividade da sua equipe Veja como automatizar seus processos, otimizar a gestão da sua equipe e os resultados da sua empresa. Faça um teste grátis Acesso ilimitado à plataforma sem cartão de crédito Solicite uma reunião Fale com um de nossos especialistas MILVUS Centralize o atendimento e aumente

Create AI-personalized workflows across all messaging channels. Discover how SleekFlow's Conversational AI revolutionizes and automates customer interactions.

Ecommerce email marketing, automated emails and SMS - switch to Omnisend and increase your sales without increasing your workload.

Intelligent popups and notifications that drive more sales and positive shopping experiences with personalization and AI.

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

Get the emails of your anonymous visitors. Own your data, grow email lists, and re-engage shoppers or corporate buyers with Opensend's lead generation services.

The ultimate email marketing software and marketing automation platform that will not break your bank. Try Moosend for free!

JangoSMTP - Transactional Emails Made Easy. Highest Inbox Results. Live US-Based Support. API and SMTP Relay Sending.

MailUp is your complete email and SMS delivery solution that combines powerful email marketing tools with SMTP relay and plugins for e-commerce, CRM, and CMS systems

The most trusted name in mass notifications for emergencies and day-to-day communications, Regroup keeps people safe and informed.

Streamline your emailing and boost your sales with Mailjet. We serve all your email and SMS needs with one simple and powerful service.

School notification systems need reliability, security, and ease of use to be effective. That’s why K12 schools trust SchoolMessenger.

LaraPush is the best self hosted push notification tool that enables efficient and independent delivery and management of your push notifications. Unlike other services, LaraPush requires only a one-time payment, that's it!

Enterprise Communications Platform as a Service (CPaaS)

Amazon SNS is a managed messaging service for communication, allowing messaging between decoupled microservices applications or directly to users with SMS texts, mobile push, and email.

Unlock the power of your communications data. The Nylas communication APIs remove complexity & empower teams to create seamless user experiences.

WebEngage offers CDP, Omnichannel Campaign Manager and Web & App Personalization Engine - to help brands boost their revenue from existing customers.

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.

ilert makes handling incident response, on call management and uptime monitoring a breeze for your teams. Sign up for a free 14 day trial!

Parcel streamlines your development workflow to help you rapidly code high-quality emails. Get started for free!

We make text message marketing and SMS marketing easy. Increase revenue and build customer loyalty with our SMS marketing software.

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

MailChannels ensures your customers' emails are always delivered. Trusted by the fastest-growing hosting providers.

Mass notification systems broadcast messages to inform employees and the public of an emergency. Everbridge is a trusted leader in mass notifications.

Automate cross-channel campaigns with Blueshift’s customer engagement platform that combines the power of AI, a CDP, and marketing automation.

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

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

Discover AhaSend, the Email Service Provider dedicated to revolutionizing transactional emails. Enjoy hassle-free pricing at $0.50 per 1,000 emails and experience unmatched delivery times. No hidden fees, no brackets, just straightforward service designed for your peace of mind.

Flexmail is het e-mailmarketing platform voor effectieve en gepersonaliseerde e-mails. Beheer je campagnes, analyseer statistieken en groei met onze software.

Delivering dynamic email templates for receipts, invoices, and notifications from Stripe events. In other words, we take the hassle out of managing email responses to your Stripe customers.

Notifii is the leading package tracking software and communication platform for apartments, student housing & corporate buildings. Package logging done in seconds, instant notifications, and keep all of your community's notifications in one place with Notifii.