iArrest vs Electrolytes Emergencies
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iArrest
This app assists healthcare professionals during cardiac arrest calls by providing structured guidance based on the latest resuscitation guidelines. It includes timers for critical interventions and generates detailed event logs for documentation. Designed for paramedics and hospital clinicians, it acts as a reminder for essential tasks in high-pressure situations.
- Structured cardiac arrest guidance
- Adult resuscitation scenarios
- Based on UK Resuscitation Council Guidelines 2021
- Timers for rhythm analysis and adrenaline
- Audible and visual intervention reminders
- Continuous use prevention of sleep mode
- Detailed event logging
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iArrest was developed to give healthcare professionals a powerful tool to navigate stressful and challenging cardiac arrest calls. Whether as a Paramedic on scene or as a clinician in hospital, this app can assist in running structured and effective adult cardiac arrest scenarios. Developed by clinicians working in large inner city teaching hospitals, this app takes into consideration the most recent Resuscitation Council (UK) Guidelines 2021. It serves as an aide-memoire for basic tasks that can easily be overlooked in stressful scenarios. iArrest also incorporates a number of timers to assist with rhythm analysis, adrenaline timings and arrest documentation. It will remind the user via audible and visual cues about necessary interventions even if a clinician’s phone is muted. iArrest has been programmed to prevent phones from going into sleep mode, in order to ensure continuous use throughout the arrest. iArrest will record the exact time an important event or an intervention has occurred and present the user with a detailed log of events. These logs can be copied to the clipboard and used for documentation and record keeping. iArrest is currently undergoing extensive testing in simulated and real world scenarios. We are continuously improving and expanding on iArrest’s functionality. Disclaimer: iArrest can not replace sound knowledge in Advance Life Support and should not be used by non-ALS trained clinicians. Use this app at your own risk and always use appropriate clinical judgement. Please familiarise yourself with the functionality of this app before using it in real life scenarios. The creators of this app shall not be liable for any claims or losses arising from the use or misuse of this app, its contents, any omissions from its contents, or otherwise. By using this app you agree to these terms and conditions.
Electrolytes Emergencies
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Electrolytes Emergencies — complete evidence-based guide to electrolyte emergencies for acute medicine clinicians. FREE TO TRY — no purchase needed: - Home overview — all electrolyte conditions at a glance - Hyponatraemia — full dedicated pathway, correction rates, SIADH FULL ACCESS — £14.99 one-time purchase: Unlocks all sections including: - Hypokalaemia and Hyperkalaemia — ECG changes, severity-graded management - Hypocalcaemia and Hypercalcaemia — causes, IV calcium, bisphosphonates - Hypomagnesaemia and Hypermagnesaemia - Hypophosphataemia - DKA — JBDS protocol, fixed-rate insulin, resolution criteria - Calculators — correction formulas, osmolality, anion gap - Special Situations — renal failure, cardiac arrest, pregnancy - References — full guideline citations One-time purchase. No subscription. Works fully offline. For clinical decision support only. Always apply clinical judgement.
Screenshots
Verdict
The clearest difference is in-app purchases: iArrest at none against Electrolytes Emergencies's 1. iArrest also leads on iOS requirement (12.0 vs 16). Electrolytes Emergencies's advantage is update cadence (every 9 days vs every 13 months). On price, 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. Electrolytes Emergencies sells 1 one-off in-app purchase. iArrest asks for nothing beyond the download.
iArrest ships an update every 13 months, Electrolytes Emergencies every 9 days. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.
| Parameter | iArrest | Electrolytes Emergencies |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 94.1% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 13 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 16 |
| Further details — not scored | ||
| Size | 31 MB | 1 MB |
| Age rating | 12+ | 17+ |
| Developer | Maximilian Neun | ATIF ELNIL |
In-app purchases
iArrest
No in-app purchases
Electrolytes Emergencies
- Electrolytes — Full Access$14.99
Questions
Is iArrest free?
Is Electrolytes Emergencies free?
Do iArrest or Electrolytes Emergencies have ads?
Which is updated more often, iArrest or Electrolytes Emergencies?
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