Ottehr is an open-source EHR designed for developers to customize and deploy for their specific needs. It offers features like patient registration, appointment scheduling, patient engagement through SMS and chat, revenue cycle management, and telehealth integration. The platform is built to be modular, allowing for easy adaptation and integration with existing systems, and includes tools for clinical notes, e-prescriptions, and diagnostic orders.

Oystehr offers a hosted headless EHR platform for healthcare developers, including FHIR API support, cloud infrastructure, compliance, identity management, messaging, telemed, eRx, real-time eligibility and claim submission as a single service, enabling both HIPAA and ONC compliance for healthcare applications.

Athenahealth provides a platform featuring integrated electronic health records, telehealth services, interoperability, revenue cycle management, and population health management, designed to streamline clinical workflows and improve patient care delivery.