NCalc vs ISTUMBLE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NCalc
Calculate the National Early Warning Score (NEWS) quickly and accurately. This app supports both original NEWS and NEWS2 scoring systems, updating the score in real-time as data is entered. It also allows for adding notes to each score to align with local policies.
- NEWS and NEWS2 scoring
- Real-time score updates
- Tap for recommended actions
- Add custom notes
- Error-free calculations
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This app has a single purpose - to allow you to calculate the National Early Warning Score quickly, easily and without error. This app includes both the original NEWS and NEWS2. The NEWS score is updated as you input data. Tapping the score takes you to the recommended actions. In addition you can add notes for each score to fit with local policy.
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 in-app purchases: ISTUMBLE at none against NCalc's 1. ISTUMBLE also leads on ads (none vs shown). NCalc's advantage is update cadence (every 2 months vs every 10 months). On price, review sentiment, device support and iOS requirement 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. NCalc sells 1 one-off in-app purchase. ISTUMBLE asks for nothing beyond the download.
NCalc ships an update every 2 months, ISTUMBLE every 10 months. The most recent releases landed on August 23, 2026 and September 22, 2026 respectively.
| Parameter | NCalc | ISTUMBLE |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 38 MB |
| Age rating | 12+ | 12+ |
| Developer | Lindum Medical Ltd | MANGAR INTERNATIONAL LIMITED |
Customer experience
NCalc
ISTUMBLE
In-app purchases
NCalc
- NCalc - remove advertising$1.99
ISTUMBLE
No in-app purchases
