What is Twilio?
Twilio is a cloud platform that enables developers to build real-time communications features for their applications. It provides APIs for voice, SMS, video, WhatsApp, and other messaging services.
9 alternatives to Twilio to consider
We’ll now look at alternatives to Twilio - competing technologies that allow you to build realtime experiences for end-users.
Ably
Ably is realtime infrastructure for AI, chat and live apps. It’s trusted by 7k+ companies and powers more WebSocket connections than any other pub/sub platform. We run the delivery layer, so ordering, reconnects and failover are handled for you. Simple APIs and use case specific SDKs mean there’s no infrastructure to build or maintain.
Key Ably features and capabilities
- Performance: 6.5ms message delivery latency within a region, and a 37ms global median round trip.
- Integrity: Each publisher’s messages arrive in order at every subscriber. Clients that reconnect within two minutes resume automatically, and History covers longer gaps.
- Reliability: Designed for 99.999999% message survivability, with each acknowledged message stored in multiple physical locations.
- Availability: 7+ years without a global outage. Regional incidents are routed around automatically across 12 regions and 750+ edge locations. 99.999% uptime SLA on Business and Enterprise.
- One platform, six products: Pub/Sub, AI Transport, Chat, Spaces, LiveObjects and LiveSync share the same guarantees.
- Integrations and SDKs: Pre-built integrations for Kafka, AWS Lambda, Cloudflare Workers and Datadog, and SDKs for 20+ languages.
- Pricing: Priced by monthly active users, with every product in every package. Free for up to 500 MAUs; Pro from $29 a month, billed annually.
Vonage
Vonage API offers a comprehensive suite of communication APIs for voice, SMS, and video, catering to businesses seeking a programmable communication platform. With its powerful SMS capabilities and global reach.
Bird
Bird (formerly MessageBird) is a cloud communications platform that offers SMS, voice, chat, and video capabilities. It focuses on enabling omnichannel communication for businesses, allowing them to connect with customers across various channels seamlessly.
Agora
Agora offers realtime communication services through APIs, enabling developers to integrate voice, video, and live-streaming features into mobile, desktop, and web applications.
Amazon SNS
AWS Simple Notification Service (SNS) is a fully managed notification service that uses the Pub/Sub model to provide message delivery from publishers to subscribers.
Firebase
Firebase is a cloud-native backend by Google that allows developers to build mobile and web applications. Firebase services include Firebase Realtime data, Firestore database, authentication, and Firebase Cloud Messaging (FCM), among others.
Sinch
Sinch provides cloud-based communications solutions, including voice, messaging, and video APIs. It focuses on enabling companies to integrate communication features into their applications easily, with strong support for mobile messaging.
Sendbird
Sendbird provides APIs and SDKs for mobile and web to integrate live chats and realtime messaging with message history, typing indicators, and push notifications features. It uses WebSocket connections and offers customizability using UI kits and backend integrations. It also supports video and audio integrations for calls.
Quickblox
QuickBlox provides APIs and SDKs for building realtime chat, voice, and video communication apps. It includes chat UI kits, AI-powered assistants, push notifications, and custom video conferencing options.
Disclaimer: The information on the alternatives presented here was based on documentation and resources freely available online and was last updated on 2 Nov 2026. Be sure to double-check everything before you make any decisions. If you do find anything incorrect or out of date, then please let us know.
Try Ably for free to discover the benefits for yourself
Ably has built reliable realtime infrastructure so you don’t have to. On our free plan you benefit from:
- Up to 500 monthly active users (MAUs)
- Every Ably product and protocol
- No credit card required
