JRCALC PLUS vs ISTUMBLE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JRCALC PLUS
Access up-to-date national and regional prehospital care guidelines for UK professionals. This app provides essential clinical information, including medicines tables and algorithms, for registered trust members. It works offline, ensuring access to critical guidance even without a signal.
- Complete JRCALC Guidelines
- Regional and local guidance
- Clinical Notices for trusts
- Medicines tables, algorithms, and advice
- Offline functionality
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JRCALC Plus JRCALC Plus provides up to date national and regional guidance for prehospital professionals across the UK relevant to their local trust. In order to gain access to JRCALC Plus, you must be part of a registered trust. Trusts maintain authority over the allocation of subscriptions to their staff. Eligibility criteria varies between trusts, so please confirm with your directorate if you are unsure whether you are eligible for access. Developed by Class Professional Publishing, key features of the app are: - Contains the complete JRCALC Guidelines - Contains regional and local guidance - Contains Clinical Notices for registered trusts - Includes all medicines tables, algorithms and advice - Works offline: No signal? No problem! Visit www.classprofessional.co.uk/app-reset to set your password. ------------------------------------------ Class Professional are the exclusive publisher of the JRCALC Clinical Practice Guidelines and have developed JRCALC Plus, a unique app, so clinicians can access local and national guidelines all in one place. Class Publishing have exclusive licence to publish and distribute the national guidelines, which are authored by both the Joint Royal Colleges of Ambulance Liaison Committee and the Association of Ambulance Chief Executives. National guidelines complement local guidelines on conveyance, Emergency Departments and other health services.
ISTUMBLE
This medical assessment tool helps care providers determine the best course of action after a fall. It guides decisions on whether to lift a fallen person or call for an ambulance, aiming to reduce the time a person remains on the floor. The app is accredited for NHS use and works with lifting cushions for safe patient handling.
- Fall assessment algorithm
- Decision support for lifting or ambulance
- NHS accredited tool
- Works with Mangar Lifting Cushions
- Reduces time on floor
- Safe and dignified lifting
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Winncare has collaborated with the Welsh Ambulance Services NHS Trust to develop ISTUMBLE ®, an algorithm and app used to determine the appropriate course of action in the occurrence of a fall. ISTUMBLE® empowers care providers to make good decisions around when to lift a fallen person and when to call an ambulance. A nationally recognised tool, the ISTUMBLE ® app is accredited by Orcha for use within the NHS. Used in conjunction with Mangar Lifting Cushions, the combination safeguards a fallen person by providing a safe and dignified lift, whilst protecting healthcare workers and carers from injury acquired through manual handling. Importantly, the ISTUMBLE® algorithm has been demonstrated to reduce the length of time that a fallen person is on the floor.
Screenshots
Verdict
The clearest difference is review sentiment: JRCALC PLUS at 23% against ISTUMBLE's 0%. JRCALC PLUS also leads on update cadence (every 2 months vs every 10 months). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.
JRCALC PLUS ships an update every 2 months, ISTUMBLE every 10 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.
| Parameter | JRCALC PLUS | ISTUMBLE |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 23.1% of reviews — better | 0.0% of reviews |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 270 MB | 38 MB |
| Age rating | 17+ | 12+ |
| Developer | Class Publishing Ltd | MANGAR INTERNATIONAL LIMITED |
Customer experience
JRCALC PLUS
ISTUMBLE
In-app purchases
JRCALC PLUS
No in-app purchases
ISTUMBLE
No in-app purchases








