Rigorous research in one secure platform
A clinically validated, end-to-end platform for compliant digital trials and secure multimodal data collection at scale.
Combining academic rigour with real-world usability to power studies and trials.
The juli platform allows fully customisable clinical, behavioural, and epidemiological studies and trials. It has already powered multiple peer-reviewed studies and engaged over 30,000 users across 40+ countries.
The advantages of juli
Data security and compliance first
GDPR, HIPAA, and SOC 2 compliant with secure and transparent data ownership and de-identified exports
Flexible and fast
Every element, from data types to interface, can be customised and deployed in weeks with grant-ready costing and live support
All-in-one platform
Capture extensive multimodal data alongside study management tools, engagement features, and health system integrations
Real engagement
Co-designed with participants, researchers, and clinicians to collect detailed, high-quality data and retain participants 7–10x longer than average
Award winning:
Trust and transparency at the core
You own your data, and juli never shares it with unauthorised third parties.
De-identified exports anytime in standard formats (e.g., CSV, JSON, FHIR)
Fully compliant with GDPR, HIPAA, and SOC 2 standards
Clear data governance policies are available on request.
Prices start at $3,400 - see our pricing page.
Engagement - the holy grail of health apps
Downloading health apps isn’t enough to drive impact. Users need to see a benefit, be engaged and stay interested enough to actually use them. Easier said than done; most apps and especially health apps struggle to achieve user engagement and retention.
Retention of juli users after 30 days. (Industry average: 3.7%)
Engagement: More than half of the active juli users use the app at least twice per week.

