CTGi vs OEI Sim Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CTGi
This app simulates a fetal heart rate monitor for obstetric training. It offers a realistic and economical platform for facilitators and students to learn and practice. Utilizing everyday technology, it provides an advanced simulation experience.
- Realistic fetal heart rate monitoring simulation
- Economical training solution
- Ideal for in-situ training
- Advanced obstetric simulation
- Built with everyday technology
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CTGi provides an economical, highly advanced and realistic fetal heart rate monitor simulation package. Using just two iPads, the lightness and simplicity of CTGi makes it ideal for in-situ training. CTGi gives facilitators a great tool for training and students an incredibly realistic platform to learn from. CTGi offers obstetric simulation as you’ve never seen it before, built off technology you use every day.
OEI Sim Pro
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OEI Sim Pro offers a sleek, new interface for control of your Operative Experience tactical simulators with powerful new features, including new clinical and trauma scenarios, scenario editor, drug recognition, expanded simulation logs and diagnostics as well as fully integrated 12-lead ECG patient monitoring, and advanced patient conditions and physiology for TCCS Pro and PCCS Pro male and female simulators. Provides touchscreen control of: Bleeding Respiratory Rate SPO2 ETCO2 Bilateral and Independent Chest Excursion Heart Rate Heart Sounds Patient Temperature Blood Pressure Independent Pulses at 14 Different Locations Airway Complication Airway Sounds Lung Sounds Blinking Eyes Simulation Activity Log Real-time Self-Diagnostics ECG Rhythms: Sinus Rhythm Sinus Bradycardia Sinus Tachycardia 1st Degree AV Block Junctional Rhythm Accelerated Junctional Rhythm Idioventricular Rhythm Accelerated Idioventricular Rhythm Supraventricular Rhythm Monomorphic VT Pulseless Ventricular Tachycardia (V-Tach) Pulseless Ventricular Fibrillation (V-Fib) Pulseless Electrical Activity (PEA) 2nd Degree AV block type 1 2nd Degree AV block type 2 Complete Heart block Supraventricular V-Tach Atrial Fibrillation Atrial Flutter Lung Sounds Precise control/playing of Lung Sounds relative to variations in Respiratory Rate Lung Sounds can be auscultated at the following locations: Left Anterior 1st Intercostal Anterior Lower Anterior Mid Axillary Right Anterior 1st Intercostal Anterior Lower Anterior Supported Lung Sounds include: No Sound Normal Wheeze Rhonchi Pleural Rub Crackles Coarse Heart Sounds Heart Sounds can be auscultated at the following locations: Aortic Pulmonic Mitral Tricuspid Supported Heart Sounds include: No Sound Normal S3 S4 S3 & S4 Early Systolic Murmur Mid Systolic Murmur Late Systolic Murmur Pan Systolic Murmur Late Diastolic Murmur Support for Airway Sounds No Sound Normal Stridor Bowel Sounds in four quadrants Patient Conditions Cardiovascular (BP) Hypertension Hypertension Stage 1 Hypertension Stage 2 Hypertensive Urgency Hypertensive Emergency (BP) Hypotension (HR) Bradycardia Mild Moderate Severe (HR) Tachycardia Mild Moderate Severe Hypovolemia Stage 1 Hypovolemia Stage 2 Hypovolemia Stage 3 Hypovolemia Stage 4 Respiratory Rate (RR) Bradypnea Acidosis, Respiratory Cheyne-Stokes Breathing Apneic breathing Tachypnea Akalosis, Respiratory Kussmaul breathing Temperature Hypothermia Stage 1 Hypothermia Stage 2 Hypothermia Stage 3 Hypothermia Stage 4 Hypothermia Stage 5 Hyperthermia Hypoglycemia Others Anaphylaxis Seizure Urine output
Verdict
The clearest difference is update cadence: CTGi at every 3 months against OEI Sim Pro's every 23 months. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CTGi ships an update every 3 months, OEI Sim Pro every 23 months. The most recent releases landed on September 1, 2026 and September 8, 2026 respectively.
| Parameter | CTGi | OEI Sim Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 months — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPad |
| Requires iOS | 13.0 — better | 14.1 |
| Further details — not scored | ||
| Size | 23 MB | 112 MB |
| Age rating | 17+ | 4+ |
| Developer | iSimulate Pty Ltd | Operative Experience Inc |
In-app purchases
CTGi
No in-app purchases
OEI Sim Pro
No in-app purchases






