Reactiv

Reactiv was a digital health company developing gamified rehabilitation software and virtual therapy services. Founded in 2020 and based in Brooklyn, New York, it focused on helping people perform therapeutic exercises at home through interactive mobile experiences. Its work combined augmented reality, computer vision and occupational therapy, with particular attention to chronic pain and arthritis affecting the hands, wrists and fingers.

The company's central product, the Reactiv App, used a smartphone camera to track hand movements and joint motion. This approach removed the need for specialized wearable hardware, allowing therapeutic movements to control mobile games. The application addressed conditions including osteoarthritis, rheumatoid arthritis and psoriatic arthritis.

Rehabilitation through play

Reactiv translated repetitive rehabilitation movements into game interactions. Exercises included finger curls, fist extensions and forearm rotations. In a mini-game called Bubble Shooter, patients used therapeutic motions to aim and fire bubbles, connecting physical exercise with an immediate visual response.

The product was designed around the challenge of maintaining participation in home rehabilitation. Rather than relying solely on a conventional exercise routine, it embedded prescribed movements within short interactive activities. Computer vision also supported range-of-motion assessments, giving the software a role in both exercise delivery and progress tracking.

Software and clinical care

Alongside its application, Reactiv operated a virtual clinic staffed by licensed occupational therapists. Patients could receive telehealth evaluations and tailored programmes addressing joint protection, stiffness and chronic pain. The model combined mobile exercises with professional guidance and remote monitoring under Remote Therapeutic Monitoring frameworks.

This combination connected the exercise experience with clinical oversight: therapists evaluated patients remotely, while the application provided a way to perform rehabilitation activities between consultations. Reactiv's work therefore spanned consumer-facing mobile software and therapist-supported care, applying interactive technology to the practical demands of ongoing musculoskeletal rehabilitation.