About

It started as a personal
tool.

Downloaded 700+ times across the App Store and Google Play as of August 2026. Built on a urology on-call, for urology trainees, by someone who kept running out of time to look things up.

Portrait of Nity G, urology SpR and author of UroRef Nity GUrology SpR · Author 700+Combined downloads
App Store + Google Play · Aug 2026
0+
Combined downloads*
0
Urology procedures
0
BAUS patient leaflets
0 0
Mean self-rated confidence / 5†

* Combined App Store and Google Play download total as of August 2026. Downloads do not represent verified unique users, active users or trainee status.
† Early feedback from a three-site quality-improvement evaluation. Participating trainees' mean self-rated confidence across common urology on-call presentations increased from 3.1 to 4.4 out of 5 after using UroRef. This preliminary, self-reported measure did not assess clinical competence, patient safety or patient outcomes.

01 What's in the app

Six things, reachable in seconds.

🩺Reference

Procedures

16 common urology procedures with consent risks, operative steps, post-op orders, and ward round checklists.

🚨On call

Emergencies

On-call decision trees for haematuria, retention, scrotal pain, priapism, penile fracture, paraphimosis, catheter problems, loin pain and fever, and more.

💊Prescribing

Drugs

Urology-specific drug doses, antibiotic protocols, renal adjustments, and drug interaction flags.

🧮Scoring

Calculators

IDENTIFY (haematuria cancer risk), MIMIC (stone passage), TWIST (torsion), eGFR, CPG, prostate volume.

🏥Outpatients

Clinic

Outpatient presentation frameworks, investigation pathways, referral guidance.

📄Patients

BAUS Leaflets

31 BAUS-approved patient information leaflets via QR code.

02 Who built it

Clinician by training,
builder by instinct.

I'm Nity - a urology SpR in the North West of England, and the person who writes and builds UroRef.

I trained in medicine at King's College London and took my MRCS with the Royal College of Physicians and Surgeons of Glasgow. Since then it has been the ordinary, unglamorous work of surgical training: clinics, lists, nights, on-calls, and the hundreds of small decisions that sit between them.

The other half of the story starts much earlier, and much further east. I grew up in Singapore, and my first websites were built in primary school with Microsoft FrontPage and basic Dreamweaver. That was as far as coding went for a long time. In between came the Singapore Youth Flying Club, two years of National Service in the army, and then medicine, which left little room for anything else. I only learned to code properly much later in life, teaching myself JavaScript and React in the gaps around hospital rota - and for a while the two lives ran quietly in parallel.

They collided on a urology on-call. The gap I kept hitting was never that the knowledge did not exist; it was that I could not reach it fast enough. So I built the thing I wanted in my pocket. That became UroRef, and UroRef became a family of tools - 3D anatomy you can turn over in your hands, a register that stops stents being forgotten, simulators that let you rehearse the operation before the operation.

These days I build in the open with the people who use it: trainees, trainers, and the BAUS Digital Innovation Group committee, where a lot of these conversations now happen.

UrologyClinical software3D & AR NHS quality improvementMedical education
Read why I built it
- The path so far
  1. Primary schoolFirst websites, in Singapore

    Microsoft FrontPage and basic Dreamweaver. Drag, drop, publish.

  2. Growing upSingapore Youth Flying Club

    A member of the club. Where the aviation further down this page began.

  3. After schoolTwo years in the army

    National Service. Two years in uniform before the next chapter.

  4. Medical schoolMBBS, King's College London

    Medicine took the foreground. The childhood websites were forgotten.

  5. SHO yearsUrology on-call

    Coude tips, on-call fog, and the private notes that would later become UroRef.

  6. MembershipMRCS, RCPS Glasgow

    The exams done, the surgical path committed to.

  7. RegistrarUrology SpR, North West

    Theatre lists by day, and a growing family of tools around them.

  8. Now700+ combined downloads

    Across the App Store and Google Play as of August 2026. Early three-site NHS quality-improvement feedback on trainee self-rated confidence; full result and limitations above.

03 Why I built it

Built by a similarly troubled soul.

UroRef was not built by someone pretending medicine is simple. It was built by someone who remembers exactly what it feels like when your brain goes blank at the wrong moment.

As an SHO on urology on call, the things that caught me out were rarely glamorous. I still remember quietly wondering what on earth people meant by a coude tip catheter. It was the practical details that got you, the ones everyone mentions so casually, as if you were simply expected to know them already.

And that is really the point. On call, the problem is rarely that the information does not exist. Your brain is busy juggling referrals, bleeps, ward problems, sick patients and the constant low-level worry that you might be missing something. On-call fog is real. Nobody is calmly thinking "let me search for that stone probability calculator I once heard about on a ward round". You need the answer quickly, safely and with as little friction as possible.

I came to believe that the number of button clicks matters more than people realise. A resource is not useful only because its content is correct. It is useful because you can reach it quickly, clearly and with minimal effort when you actually need it. In pressured environments, convenience is not a luxury. It is part of safety.

So, with some background in JavaScript and React, I built a small tool for myself. Feedback from trainees and trainers slowly shaped it into something more polished, and one tool has since become a family of them.

If it makes even one on-call shift a little easier, it has done its job.

The UroRef ecosystem of clinical tools
The ecosystem, so far
To all the FYs and CTs: I can assure you, UroRef was built by a similarly troubled soul.
01 Build it on the ward, not in a boardroom.

Every tool here started as a problem I had in front of a patient, and gets used on a real shift long before I call it finished.

02 Measure it, or it did not happen.

Confidence scores, adoption numbers, segmentation accuracy, forgotten-stent rates. If a tool claims to help, the claim should state what was measured, how, and what it does not show.

03 Stay firmly in scope.

None of this replaces clinical judgement, local guidance, senior advice or formal protocol. Knowing where a tool stops is part of designing it.

04 The projects · five scenes

One clinical problem.
One focused tool. Repeated.

Everything below started as a real friction point in training, on-call work or NHS quality improvement. Nothing here replaces judgement or local guidance. It just makes the useful thing easier to reach.

01
Scene 01 / Clinical referenceLive

UroRef

Smarter on-call. Better decisions.

An offline-core companion for the first difficult minutes of a urological problem: decision pathways, checklists, operative notes, calculators, doses and escalation prompts. In early feedback from a three-site quality-improvement evaluation, participating trainees' mean self-rated confidence increased from 3.1 to 4.4 out of 5 after using UroRef. This preliminary, self-reported measure did not assess clinical competence, patient safety or patient outcomes. Ask Ariadne · An optional online AI feature. A query sends the text you enter, recent chat context and selected-site context to UroRef's service and its AI provider. Do not enter patient-identifiable information. See the Privacy Policy.

iOSAndroidWebOffline coreOptional online AI
Get the app
02
Scene 02 / MRI · 3D · ARLive

ProstateView

From MRI to 3D understanding.

A browser-based 3D prostate MRI learning environment: a verified case library, Spatial Lab drills like Locate the Lesion, a TURP AR simulator and a report visualiser. Flat images become anatomy you can walk around.

Dice 0.947Spatial LabTURP ARReport visualiser
Explore ProstateView
03
Scene 03 / Endourology planningIn development

CalyxView

See every calyx. Plan every step.

CT-derived 3D collecting-system and stone anatomy for ureteroscopy planning, with an experimental scope-tip perspective. See the collecting system before the scope does.

CT → 3DURS planningScope-tip viewStone disease
Preview CalyxView
04
Scene 04 / Surgical educationLive

UroOps3D

Learn the operation, not just the steps.

Realistic 3D endourology teaching built around anatomy, decisions and complications. Each complication is an Oops Card: the model, the mechanism, the save and the viva answer. Starting with TURBT, expanding to TURP, URS and PCNL.

3D animationOops CardsViva-ready
Visit UroOps3D
05
Scene 05 / Quality improvementIn service

MCHT Stent Register

Data that drives change. Outcomes that matter.

A clinician-built ureteric stent register for Mid Cheshire Hospitals NHS Foundation Trust, on Power Apps and SharePoint, with automated alerts and due dates nobody has to remember. Forgotten stents fell from 12% to 0%, capture rose from 57% to 88%, and multicentre adoption is being explored.

Power AppsSharePointAutomated alertsNHS QI
Next Coming attractions

In the pipeline.

Android XRPipeline

UroRef Spatial

An anatomy and procedure trainer for the coming wave of XR glasses: spatial anatomy plus TURP, URS and nephrectomy rehearsal.

Mobile 3DMVP

Companion Viewer

A pocket 3D kidney and stone viewer, turning CT into models you can rotate at the bedside for PCNL planning.

AndrologyIn build

AndroRecover

A clean, minimalist companion for andrology recovery, covering twelve structured pathways from surgery to normal life.

eLogbookMVP

UroFlow Log

A photo-to-structured-case logbook assistant: snap the list, review the parse, keep the evidence of your training.

- Beyond the ward

Off duty, still curious.

The projects get the headlines, but most of them were born from the same restlessness that fills the rest of my time.

Chess

Around 1000 Elo and climbing, one Chessable course at a time. The endgame study is going better than the blitz record.

Geopolitics & strategy

Maps, supply chains and long games. The night-shift reading that has nothing to do with urology, mostly.

Tabla

Rhythm practice in the gaps between shifts.

Aviation

From the Singapore Youth Flying Club to an enthusiast with a private pilot's licence gathering dust somewhere. One day.

05 Governance

Where this tool stops.

UroRef is an independent quick-reference tool for healthcare professionals. It is not a substitute for clinical judgement, senior advice, or local protocols.

Clinical content cites relevant sources, including EAU, NICE and BAUS guidance. Review of guideline-dependent content against the 2026 EAU Guidelines is in progress. Until a section's review is complete, verify it against the current source guidance and your local protocols.

Content is authored by Nity G, Urology SpR. UroRef is not affiliated with or endorsed by EAU, NICE or BAUS.

With thanks to

  • Mr Yehia Abdallah
  • Mr Grigorios Athanasiadis
  • Mr Tom Farmer
  • Mr Oladapo Feyisetan
  • Mr Rob Mason
  • Mr Chirag Patel
  • Mr Omar Shareef

And urology trainees across the North West Deanery.

Questions or feedback?

If something is wrong, tell me.

If you're a trainee with feedback, a colleague with an idea, or a team that wants to test useful things properly, my inbox is open.