Siilo - Medical Messenger 17+

Secure healthcare messaging


    • 4.3 • 9 Ratings
    • Free



Siilo is a secure medical messaging app designed to help healthcare professionals and teams better collaborate on difficult cases, improve patient care, and share knowledge in a compliant way. Join over a quarter-million active users in Europe’s largest medical network.

End-to-end Encryption
PIN Code Protection – secure your conversations and data
Secure Media Library – separate personal and professional photos, videos, and files
Photo Editing – guarantee patient privacy with blur tool and treatment accuracy with arrows
GDPR, ISO-27001, NHS Complaint

User Verification – trust who you’re talking to
Medical Directory – connect with colleagues in your organisation, regionally, or globally
Profiles – provide essential details for other Siilo users to better find you

Cases – discuss anonymised patient cases separately within general chat threads
Groups – contact and bring together the right people at the right time
Voice & Video – initiate secure audio and video calls directly through Siilo

Siilo is GDPR, ISO-27001, and NHS compliant and partners with reputable healthcare associations such as AGIK and KAVA, as well as hospitals like UMC Utrecht, Erasmus MC, and departments at Charité to deliver organisational and departmental collaboration.

Siilo | Practice Medicine Together

“Siilo has great potential to control and manage major incidents. We’ve seen the benefits of WhatsApp in these situations, but with Siilo the benefits are even greater — it’s highly intuitive, familiar and it’s ready to use.”
– Darren Lui, Spinal and Orthopaedic Surgeon at St George’s Hospital, UK

“The SARS-CoV-2 pandemic requires optimal collaboration between primary and secondary care. By creating a regional network together with primary care physicians, we can effectively serve all people affected by this virus. With Siilo, the Red Cross Hospital specialists are demonstrating leadership by sharing knowledge and expertise, even beyond hospital walls.”
– Dr. Gonneke Hermanides, Infectious Disease Specialist, Red Cross Hospital Beverwijk Netherlands

“The possibilities we have with Siilo are enormous because we can receive very quick responses from our clinical peers securely from all over the country and benefit from different opinions on how best to treat patients.”
– Professor Holger Nef, a cardiologist and deputy medical director at The University Hospital of Giessen and director of the Heart Centre Rotenburg

“Everyone has interesting patient cases, but that information is not stored nationwide. With Siilo you can search the cases and see if someone asked the question before.”
– Anke Kylstra, AIOS Hospital Pharmacy in the Maxima Medical Center, JongNVZA board member

What’s New

Version 8.4.0

In Siilo's latest update, we shipped some performance improvements and have squashed some bugs to keep the app running smoothly.

Have any questions? Message us at Team Siilo!

Ratings and Reviews

4.3 out of 5
9 Ratings

9 Ratings

Barristermd ,

This is the WhatsApp for Medicine

Phenomenal app! Superior performance! No other secure messenger comes close to this app!

Shaddock2606 ,

Verification is ridiculous

Even though I have submitted my work email and my state license they still want more personal information to get full access. Seems to be a great app but the verification process seems a little too invasive.

Augusto2706 ,


Excellent and privately

Developer Response ,

Thank you for your review!

App Privacy

The developer, Siilo, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Identifiers

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Other Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contacts
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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