One of the top options is Daily. This enterprise WebRTC foundation lets developers build large-scale, real-time voice and video features with high-definition recording and streaming. It's got end-to-end encryption and is covered by the EU-US Data Privacy Framework for privacy and HIPAA. Daily also offers APIs and SDKs for Android, iOS, JavaScript, and other platforms, and has flexible pricing with a free tier.
Another option is Dyte, which offers a collection of SDKs for building live, immersive experiences like audio/video conferencing and live streaming. Dyte is certified to meet major security standards like HIPAA, and it's got features like screen sharing, polls and AI-powered chat. It's also designed to scale and be reliable, which should be good for telehealth.
If you want something more flexible, Whereby offers an API and SDK for embedding video calling into web and mobile apps. It's got telehealth and digital mental health features like private and secure content, and supports many programming languages. Its scalable and customizable infrastructure is designed to increase user engagement and trust in many industries.