Comparison

CTGi vs OEI Sim Pro

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

Head to head
About

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.

Highlights
  • Realistic fetal heart rate monitoring simulation
  • Economical training solution
  • Ideal for in-situ training
  • Advanced obstetric simulation
  • Built with everyday technology
Features
Read full description

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.

About

OEI Sim Pro

Features
Read full description

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 call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 8 level
CTGi versus OEI Sim Pro: the parameters behind the verdict, then further details
ParameterCTGiOEI Sim Pro
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 3 months — betterEvery 23 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPad
Requires iOS13.0 — better14.1
Further details — not scored
Size23 MB112 MB
Age rating17+4+
DeveloperiSimulate Pty LtdOperative Experience Inc

In-app purchases

None

CTGi

No in-app purchases

None

OEI Sim Pro

No in-app purchases

Questions

Is CTGi free?
CTGi is free to download, with no in-app purchases.
Is OEI Sim Pro free?
OEI Sim Pro is free to download, with no in-app purchases.
Do CTGi or OEI Sim Pro have ads?
Neither CTGi nor OEI Sim Pro shows ads.
Which is updated more often, CTGi or OEI Sim Pro?
CTGi ships an update every 3 months, and OEI Sim Pro every 23 months. Most recently, CTGi was updated on September 1, 2026 and OEI Sim Pro on September 8, 2026.

Other comparisons