Practical gastroenterology decision support.
Explore clinical decision-support tools, calculators, educational reviews, and clinical cases in one place.
Launching first on the web, with Android and iOS to follow. Clinical calculators will be free.
Structured inputs. Cited, reviewable outputs.
Each module asks focused questions, then lays out options to consider with the reasoning and references behind them.
Modules at launch
Ulcerative Colitis
PLUSAdult ulcerative colitis — outpatient management, acute severe UC, and remission monitoring.
Crohn’s Disease
PLUSAdult Crohn’s disease — active luminal disease, treatment response, and post-operative care.
Chronic Hepatitis B
PLUSHBV serologic interpretation and phase classification per AASLD/IDSA 2025 and EASL 2025.
Pancreatic Cyst Evaluation
PLUSSynthesized Kyoto 2024 / ACG 2018 / AGA 2015 classification, risk stratification, and surveillance guidance.
GI Bleeding
PLUSUpper and lower GI bleeding risk stratification, triage, and management algorithms.
In development
Planned after launch. Shown so you know what is being worked on; timing is not guaranteed.
Clinical calculators, free at launch
The easiest way to start with GI Compass when it launches. Each calculator shows its formula, reference thresholds, evidence, and limitations alongside the result. New calculators are added regularly.
Get notified at launch
Learn with GI Compass
Explore gastroenterology educational reviews and clinical cases alongside practical clinical decision-support tools.
Written by Viyan Udawatta, MD, with full references. More reviews and clinical cases will be added.
Built to be checked, and learned from
Cited to the source
Recommendations carry inline citations to the guideline or study behind them, so you can review the basis yourself.
Consistent by design
Rule-based, not generative: the same inputs give the same structured output every time, which makes it faster to use and easier to learn from.
No patient data stored
Clinical values you enter are processed only on your device, held only while the app is open, and cleared when it is fully closed.
Not a static reference
Content is reviewed as guidelines and evidence change, and new work is shaped by feedback. Suggest a module.
Unlock every released Plus module
Plans available at launch. Plus unlocks all released Plus clinical decision-support modules. Monthly and annual plans provide the same Plus access. Calculators remain free.
Paid subscriptions renew automatically until canceled. Price, billing period, renewal, and cancellation terms are shown before you subscribe. See the Terms of Service.
Put your professional-development budget to work
GI Compass may qualify for reimbursement through your institution’s CME or professional-development funds. Keep your purchase receipt to submit a reimbursement request.
About the Founder
Dr. Viyan Udawatta is a gastroenterologist in Raleigh, where he cares for patients with gastrointestinal and liver conditions, with a particular focus on inflammatory bowel disease. He graduated magna cum laude from Case Western Reserve University with a Bachelor of Arts in chemistry and cognitive science.
He founded GI Compass to help healthcare professionals navigate evolving evidence and apply it in everyday clinical decisions. As its founder and clinical architect, he leads the translation of published guidance and research into practical decision pathways, bringing clinical experience to the app’s design. His goal is to support both the decision at hand and the knowledge clinicians carry forward.
Board Certifications
- Gastroenterology — American Board of Internal Medicine
- Internal Medicine — American Board of Internal Medicine
Medical Education and Training
- Medical School: University of Chicago Pritzker School of Medicine
- Internal Medicine Residency: UPMC Montefiore
- Gastroenterology Fellowship: The Ohio State University Wexner Medical Center
Previous Academic Appointment
- Inflammatory Bowel Disease Faculty: The Ohio State University, 2019–2020
Common questions
When does GI Compass launch?
Soon. Join the waitlist and we’ll email you when it is available.
Who is GI Compass for?
Healthcare professionals. It is not intended for patients or the general public. Full eligibility details are in the Terms of Service.
Why doesn’t GI Compass use an AI chatbot?
GI Compass is built around structured clinical pathways rather than an open-ended conversation. The goal is to help clinicians work through clinical questions without composing prompts or reading through lengthy generated responses. A consistent format also supports learning, making it easier to revisit the reasoning behind a decision.
AI-assisted tools support parts of the development process, but the app’s clinical pathways are developed under physician direction and reviewed before release.
How does GI Compass fit alongside other clinical resources?
GI Compass brings focused decision support and education into everyday clinical work. It complements society guidelines, primary literature, and other reference tools by helping clinicians navigate clinical questions in a structured format. It supports, rather than replaces, the treating professional’s clinical judgment.
Why did GI Compass start with inflammatory bowel disease?
GI Compass grew out of Dr. Udawatta’s experience caring for patients with IBD and discussing diagnostic and treatment questions with colleagues. Those conversations highlighted a shared challenge: navigating an expanding body of evidence and determining how it applies to an individual patient.
The project began as a practical IBD resource and expanded as he recognized opportunities to bring the same approach to other areas of gastroenterology and hepatology.
How are GI Compass’s clinical pathways developed?
Development starts with published medical society guidelines, supported by the studies they cite and relevant research published afterward. Evidence is assessed for its methods, strength, and applicability to the clinical question.
Dr. Udawatta leads this process and translates the evidence into the app’s clinical inputs, decision pathways, and guidance. AI-assisted tools help identify and synthesize source material under his direction. He personally reviews and approves every module’s clinical recommendations before release.
How is GI Compass kept up to date?
Dr. Udawatta monitors new guidelines and research through ongoing journal review and conducts scheduled reviews of the app’s clinical content. User feedback also helps identify areas that need clarification, correction, or reassessment.
Clinical content can contain errors, and evidence evolves. Reported concerns are reviewed, and changes to recommendations undergo clinical review and approval before release.
What is free, and what does Plus include?
Clinical calculators are free. Plus unlocks all released Plus clinical decision-support modules. Monthly ($19.99) and annual ($199.99) plans provide the same Plus access.
Does the educational content award CME credit?
No. GI Compass educational content does not currently award CME credit.
What happens to the clinical values I enter?
They are processed only on your device and held in the app’s memory while you use it — never saved to storage. If you switch to another app without closing GI Compass, your current case stays open so you can return to it; fully closing the app clears it. Never enter names, dates of birth, record numbers or other patient identifiers.
Can I cancel?
Yes. A subscription bought on our website can be canceled online in your account settings or by emailing [email protected]. App store subscriptions are canceled through that store.
Which devices does it work on?
GI Compass will launch first in modern web browsers, with Android and iOS apps to follow.
Be first to know when GI Compass launches
Leave your email and we’ll let you know as soon as it is available.
Intended use
GI Compass is designed for use by licensed physicians, advanced practice providers, and other qualified healthcare professionals acting within the scope of their professional license, training, institutional privileges, and applicable law, or by trainees, including medical students, residents, or fellows, using the Service under appropriate supervision. GI Compass is not intended for use by patients, caregivers, or members of the general public for self-diagnosis or self-treatment.
GI Compass does not provide medical advice to patients, does not diagnose or treat any disease or condition, and does not make or direct clinical decisions. All outputs are intended to support, and not replace, the independent professional judgment of the treating clinician. See the Terms of Service for full details.