NIHSS Calculator vs RenalTracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NIHSS Calculator
This tool helps healthcare professionals quickly and accurately calculate the National Institutes of Health Stroke Scale (NIHSS) score. It features an intuitive interface for bedside use, providing instant severity grading and working offline.
- Complete 15-item NIHSS scoring
- Real-time total score updates
- Instant severity classification
- Optimized for clinical use
- Works fully offline
- One-tap reset
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NIHSS Calculator is a fast, accurate, and beautifully designed NIH Stroke Scale scoring tool, built for neurologists, stroke physicians, emergency doctors, nursing staff, and medical students working in acute stroke care. Designed by Dr Atif Elnil (MBBS MRCP, Stroke Unit St George's Hospital London UK), this app brings the complete 15-item NIHSS to your pocket with a clean, intuitive interface optimised for use at the bedside, in the emergency department, and on the stroke ward. WHAT'S INCLUDED All 15 NIHSS items scored in full: • 1a — Level of consciousness • 1b — LOC questions (month and age) • 1c — LOC commands (eyes and hand) • 2 — Best gaze • 3 — Visual fields • 4 — Facial palsy • 5a/5b — Motor arm (left and right, scored separately) • 6a/6b — Motor leg (left and right, scored separately) • 7 — Limb ataxia • 8 — Sensory • 9 — Best language (aphasia) • 10 — Dysarthria • 11 — Extinction and inattention INSTANT SEVERITY GRADING The total score updates in real time as you score each item, with immediate severity classification: • 0 — No stroke symptoms • 1–4 — Minor stroke • 5–10 — Moderate stroke • 11–15 — Moderate-severe stroke • 16–20 — Severe stroke • 21–42 — Very severe stroke DESIGNED FOR CLINICAL USE • Large, touch-friendly response buttons optimised for use with gloves or in a hurry • Progress indicator shows how many items have been scored • One-tap reset to start a new patient assessment • Works fully offline — no internet connection required • No login, no account, no data collected WHO IS THIS FOR? • Stroke physicians and neurologists • Emergency medicine doctors • Acute stroke nursing staff • Stroke specialist nurses and ANPs • Medical students on neurology and emergency placements • Paramedics and pre-hospital teams IMPORTANT NOTICE NIHSS Calculator is a clinical decision-support tool for use by qualified healthcare professionals. It does not recommend for or against thrombolysis or thrombectomy. All clinical decisions must be made by a qualified clinician using full clinical assessment and local guidelines. This application is intended for educational and informational purposes only. It is not a substitute for professional clinical judgment, local guidelines, or specialist advice. Always follow institutional protocols and consult appropriate medical professionals when making treatment decisions.
RenalTracker
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Track daily fluid intake, optional urine output, and optional vitals — built for dialysis and post-transplant care plans. Set your plan from your care team, log drinks quickly, and see progress for today and the week. Records stay on your device by default, with optional private iCloud sync. Features Today view with plan progress and fast add buttons Week overview and insights, including PDF export for clinic visits Optional health readings (weight, blood pressure, glucose, and more) Reminders, widgets, and an Apple Watch companion Optional Sync with iCloud (your private CloudKit database) Siri After installing, open Renal Tracker once so Siri can register its shortcuts. If a phrase isn’t recognised yet, open the Shortcuts app and add the Renal Tracker shortcut first (or check Settings → Siri & Shortcuts). Try phrases like: “Log my usual drink in Renal Tracker” “Log my drink in Renal Tracker” “How much have I drunk today in Renal Tracker” “Check my intake in Renal Tracker” “Log urine output in Renal Tracker” “Open today in Renal Tracker” Important Renal Tracker is a personal record-keeping aid, not a medical device, and does not give medical advice. Fluid plans and clinical thresholds should come from your renal or transplant team.
Screenshots
Verdict
The clearest difference is price: RenalTracker at Free against NIHSS Calculator's $2.99. NIHSS Calculator's advantage is iOS requirement (16 vs 18.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
RenalTracker is free to download; NIHSS Calculator costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | NIHSS Calculator | RenalTracker |
|---|---|---|
| Price | $2.99 | Free — better |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 16 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 4 MB |
| Age rating | 17+ | 17+ |
| Developer | ATIF ELNIL | JASON JAY MICHAEL CASTER |
In-app purchases
NIHSS Calculator
No in-app purchases
RenalTracker
No in-app purchases





