NB On Call vs iRefer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NB On Call
A secure, judgment-free community for GMC-registered GPs to share clinical and non-clinical cases. Ask questions, get peer advice, and track your Continuing Professional Development (CPD) automatically. Join thousands of UK GPs in this protected network.
- Share clinical and non-clinical cases
- Anonymized posting option
- Judgment-free discussion zone
- Easy-to-use interface
- Protected network with GMC verification
- Automatic CPD tracking
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The NB On Call app has been created by GPs for GPs and it is only accessible by GMC registered GPs. NB On Call’s aim is to foster a community where trusted GP peers can openly share both clinical and non-clinical problems, drawing upon the collective expertise of their peers. What is NB on Call? - Share both clinical and non-clinical cases with trusted GP peers - No judgement zone - there is no such thing as asking a ‘stupid question’. - Anonymised posting for your comfort if required. - Easy to use - designed to ask questions and find answers as quickly as possible. - Protected network - all registrants must provide a valid GMC number. - Free of charge - no fees or charges. - CPD Tracker - Time spent on NB On Call is automatically tracked and added to your CPD tracker. With almost 5000 UK GPs already active on NB on Call, why not join in the conversation today?
iRefer
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The iRefer guidelines have been published by the Royal College of Radiologists since 1989 and are aimed at all healthcare professionals to help determine the best, safest and most appropriate imaging investigations. This application provides on the go access to the iRefer guidelines, even when offline.
Screenshots
Verdict
The clearest difference is in-app purchases: NB On Call at none against iRefer's 1. On price, update cadence, ads 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
Both are free to download. iRefer sells 1 in-app purchase, starting at $149.99 per year. NB On Call asks for nothing beyond the download.
NB On Call ships an update every 3 weeks, iRefer every 6 weeks. The most recent releases landed on October 17, 2026 and October 14, 2026 respectively.
| Parameter | NB On Call | iRefer |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 34 MB |
| Age rating | 12+ | 17+ |
| Developer | GPFORUM SOLUTIONS LIMITED | The Royal College of Radiologists |
In-app purchases
NB On Call
No in-app purchases
iRefer
- iRefer Individual Plan$149.991 Year
