Comparison

DART Sim for iPhone vs Rapid Response Tx

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DART Sim for iPhone

This educational application simulates a cardiac monitor and ECG rhythm simulator, allowing users to practice various medical procedures like defibrillation, capnography, and x-rays. It's designed for instructors and students to hone their skills using their iPhone.

Highlights
  • 26 cardiac rhythms
  • 12-lead rhythm viewing/printing
  • 18 capnography waveforms
  • 20 trauma/medical x-rays
  • ACLS, PALS, and NRP scenarios
  • Defibrillation simulation
  • Medication administration practice
Features
Read full description

Turn an iPhone into a realistic cardiac monitor and defibrillator for simulation training. DART Sim gives instructors a patient they can control, and gives learners a device that looks, sounds and behaves like the one in the room. Now completely rebuilt for the phone. WHY INSTRUCTORS CHOOSE DART SIM • Realistic from the first beat. Four waveform lanes with ECG, arterial pressure, pulse oximetry and capnography. Pulse tone that drops in pitch with saturation. Alarms that blink and sound. Values that read "--" until the patient is connected, and go flat when the rhythm is pulseless. • 37 rhythms at your fingertips. From normal sinus to VF, torsades, heart blocks, pacing capture and post-shock conversion. Choose the rhythm the patient converts to after the next shock, or keep them in arrest. • A real defibrillator workflow. Press THERAPY and the monitor becomes a defibrillator: select energy, charge, stand clear, shock. Synchronized cardioversion with sense markers that waits for the R wave. Press MONITOR to go back to the full-screen monitor. • Transcutaneous pacing you control. Demand pacing with a capture threshold you set: decide the output at which the patient captures, or make them refuse to capture at any output. Learners have to find capture on the ECG, not assume it. • AED mode. Push ANALYZE and the device talks learners through STAND CLEAR, SHOCK ADVISED or NO SHOCK ADVISED, charging, and a CPR interval with metronome, following manufacturer energy protocols. • CPR feedback. Compression rate, chest compression fraction, depth and release, with a code timer that keeps running through pauses so debriefs have numbers to point at. Pair a SimCPR chest pad over Bluetooth to see the learner's real rate and depth live. • Teach rhythm interpretation on screen. Tap the ECG for a true-scale paper grid or a printed-strip view, freeze the trace, then measure intervals with on-screen calipers and march lines. • Made for the phone. Full-width waveforms, large energy and pacer keys you can work with a thumb, and a monitor-only screen that fills the display until you call up the therapy controls. BUILT FOR THE CLASSROOM • 122 built-in scenarios covering ACLS, PALS and NRP, each stepping rhythm, vitals, capnogram and chest X-ray on a timer or at the instructor's pace. Change the rhythm by hand at any point and the scenario carries on. Build and save your own in the scenario editor. • Medication log with 38 drugs, routes and doses, plus an automatic code record of every rhythm change, shock, pacing change and NIBP reading for debriefing. Add your own medications or actions, and organize them in tabs by course. • 12-lead tracings for 26 rhythms, 20 chest X-rays, and your own photos from the camera roll attached to any rhythm. • Instructor controls that stay out of sight. A discreet gear menu, a hardware keyboard shortcut card, and the free DART Sim Remote app so you can run the patient from across the room over Bluetooth. • Built-in User Manual and keyboard shortcut card that you can read in the app, print, or share. • In English or Spanish, following the phone's language, with units by country: °F or °C, mmHg or kPa, cm or inches. • Works on any iPhone, in landscape, with no account, no subscription and no internet connection required. DART Sim is used by fire departments, EMS agencies, nursing programs and hospital education teams to run codes without a $20,000 simulator. One phone, one app, every rhythm. FOR TRAINING AND EDUCATION ONLY. DART Sim is a simulator, not a medical device. It does not measure anything from a real person and must not be used for clinical diagnosis, monitoring or treatment of patients.

About

Rapid Response Tx

This educational tool helps clinicians practice managing deteriorating patients. It focuses on rapid assessment, stabilization, and immediate management strategies during critical events. Designed for learning and informational purposes only.

Highlights
  • Stabilization strategies
  • Focused patient assessment
  • Key data review
  • Immediate management guidance
  • Educational tool for clinicians
Features
Read full description

Think faster. Act sooner. RRTx is an educational tool for clinicians managing deteriorating patients. The app focuses on what matters most during a rapid response: stabilization, focused assessment, key data review, and immediate management. DISCLAIMER — Educational Use Only Rapid Response Guide is intended for educational and informational purposes only. It does not provide professional medical advice and must not be used as a substitute for clinical judgment or institutional protocols. Always seek the advice of a physician or other qualified healthcare provider with any questions regarding a medical condition or treatment. Never disregard professional medical advice or delay seeking it because of something read in this app. In a medical emergency, call emergency services immediately. Nothing in this app constitutes professional medical advice, diagnosis, or treatment. All clinical decisions must be made by a qualified healthcare professional with full knowledge of the patient's individual circumstances and in accordance with approved local practice standards. Always verify information against current institutional policies, pharmacists, and up-to-date references before applying in patient care. To the maximum extent permitted by law, the developers are not liable for any damages arising from use of this application, including damages related to patient care or clinical decisions.

Screenshots

DART Sim for iPhone4 screens
Rapid Response Tx3 screens

Verdict

The call

The clearest difference is review sentiment: Rapid Response Tx at 100% against DART Sim for iPhone's 0%. Rapid Response Tx also leads on price (Free vs $99.99) and rating (5.0 vs 3.3). DART Sim for iPhone's advantage is ratings volume (4 vs 1) and iOS requirement (16.4 vs 26.2). 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

CostPrice · In-app purchases · Ads · Monetization

Rapid Response Tx is free to download; DART Sim for iPhone costs $99.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Rapid Response Tx holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 0% of DART Sim for iPhone's written reviews are positive against 100% of Rapid Response Tx's.

UpkeepUpdate frequency

DART Sim for iPhone ships an update every 56 months, Rapid Response Tx every 2 days. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

Scorecard7 real differences · 3 level
DART Sim for iPhone versus Rapid Response Tx: the parameters behind the verdict, then further details
ParameterDART Sim for iPhoneRapid Response Tx
Price$99.99Free — better
Rating3.3 (4 ratings)5.0 (1 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings4 — better1
Update frequencyEvery 56 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.4 — better26.2
Further details — not scored
Size21 MB13 MB
Age rating4+17+
DeveloperSTAR CPR San DiegoAndrew McGowan

Customer experience

DART Sim for iPhone

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Rapid Response Tx

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

DART Sim for iPhone

No in-app purchases

None

Rapid Response Tx

No in-app purchases

Questions

Is DART Sim for iPhone free?
DART Sim for iPhone costs $99.99, with no in-app purchases.
Is Rapid Response Tx free?
Rapid Response Tx is free to download, with no in-app purchases.
Which has better reviews, DART Sim for iPhone or Rapid Response Tx?
Rapid Response Tx is rated higher. DART Sim for iPhone averages 3.3 out of 5 from 4 ratings, while Rapid Response Tx averages 5.0 from 1 ratings.
Do DART Sim for iPhone or Rapid Response Tx have ads?
Neither DART Sim for iPhone nor Rapid Response Tx shows ads.
Which is updated more often, DART Sim for iPhone or Rapid Response Tx?
DART Sim for iPhone ships an update every 56 months, and Rapid Response Tx every 2 days. Most recently, DART Sim for iPhone was updated on October 25, 2026 and Rapid Response Tx on October 15, 2026.

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