If you're looking for a TalkJS replacement, the top candidate is Sendbird. It's a communications API platform that covers a lot of ground, including chat, AI chatbots, SMS, and voice and video calls. Sendbird's relatively high-level APIs, SDKs and UI kits make it easy to use on different platforms, and it's got features like targeted messaging, group chat and message translation. It's also got several pricing tiers, including a free developer plan and custom enterprise deals.
Another good option is Stream. It's an API for building social networks, activity feeds and chat apps, with a focus on scalability and reliability. Stream has a powerful Chat Messaging API with offline support and moderation controls. It also has an Activity Feeds API and a Video & Audio API, so it's a good option for developers who want a lot of flexibility. Pricing tiers range from a free tier for up to 100 MAU to more expensive options, so you can pick the best option for your needs and budget.
If you're looking for a more specialized AI chatbot service, Chatbase is worth a look. You can build chatbots and embed them in your website or use them through an API, which is good for customer support and lead generation. Chatbase supports multiple languages and can pull data from a variety of sources like Slack and WhatsApp. The service has tiered pricing, including a free option, so it's accessible to businesses that want to use AI to improve customer service.
Last, QuickBlox offers an instant messaging platform with APIs and SDKs for Android, iOS and web apps. It's got features like embedded chat, voice and video chat, and secure file transfer. It supports big security standards, and its pricing is flexible, so QuickBlox is good for developers who are just getting started or who are scaling up. It's used by companies in a variety of industries, including health care and finance.