Question: Can you recommend a platform that allows me to add in-app messaging with rich media attachments to my telehealth app?

If you want a full-fledged platform to integrate in-app messaging with rich media attachments to your telehealth app, ZEGOCLOUD is a good option. The company offers APIs and SDKs for real-time voice, video and chat, and its telehealth and healthcare products are designed for telehealth and other health care use cases. It also supports rich media attachments, offline messages, read receipts and live streaming, so it's a good foundation for your needs.

Another good option is Sendbird, a communications API company that spans a broad range of communication channels, including chat, voice and video. Sendbird's APIs, SDKs and UI kits are highly abstracted so it's easy to add messaging to your app, and it's got a strong security and compliance program to ensure your messaging is reliable and secure.

Tencent RTC is another option, offering APIs and SDKs for video, voice and chat. It's designed for multiple platforms and offers tools like live streaming and conference SDKs. It's geared for high availability and low latency, so it's good for situations where real-time communication is critical, like telehealth and live events.

Last, QuickBlox offers APIs and SDKs to add chat, voice and video calling to your mobile and web apps. It's got a lot of features, including push notifications and secure file transfer, and it's certified for major security standards like HIPAA and GDPR. More than 30,000 developers use QuickBlox, so it's a good option if you're looking for a messaging foundation that's proven at scale.