Asker Ortho vs Ventlas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Asker Ortho
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Welcome to Asker Ortho, your ultimate mobile learning companion! Whether you are looking to master a new skill, prepare for exams, or advance your career, we bring the classroom directly to your fingertips. Designed for seamless learning, Asker Ortho offers a premium educational experience tailored to your pace and lifestyle. Key Features: - HD Video Lectures: Stream high-quality engaging lessons from top instructors. - Interactive Quizzes & Assignments: Test your knowledge and track your progress instantly. - Direct Communication: Seamlessly interact with your teachers and get your questions answered. - Smart Notifications: Never miss a live session, new course release, or important announcement. Join our growing community of successful learners today. Download Asker Ortho now and take the next step in your educational journey!
Ventlas
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Don't memorize ventilator waveforms. Watch them being made. Ventlas is an educational simulator that computes pressure, flow and volume waveforms from resistance and compliance using a single-compartment lung model. Nothing is hand-drawn: every trace is integrated from the equations, breath by breath. Because residual volume carries over between breaths, auto-PEEP emerges from the arithmetic rather than being painted in. [ ATLAS - 17 conditions ] Normal lung / ARDS / COPD and asthma / Cardiogenic pulmonary edema / Obesity and raised abdominal pressure / Atelectasis / Pulmonary fibrosis Mucus plug / Kinked tube / Tension pneumothorax / Endobronchial intubation / Circuit leak Double triggering / Flow starvation / Ineffective triggering / Auto-triggering / Reverse triggering Each condition is explained in four panels - mechanism, mechanics, waveform, clinical - with a severity slider in real units. What matters is what separates conditions that look alike: - Atelectasis vs fibrosis: does compliance improve when you raise PEEP? - Kinked tube vs mucus plug: does pressure fall in proportion to flow, or with its square? - Auto-triggering vs reverse triggering: does the negative deflection come before the breath, after it, or not at all? [ THREE MODES ] Volume control / Pressure control / Pressure support The same problem looks different in each mode, and that is the teaching point. Volume control shows it as rising pressure; pressure control shows it as falling volume. In pressure support the breath ends on flow rather than time, so high resistance stretches inspiration out. [ SIMULATOR - the patient answers back ] Work the ventilator and the patient changes over minutes. Saturation, end-tidal CO2, heart rate and mean arterial pressure are monitored continuously. An arterial blood gas takes two minutes to come back, and the result is the patient as they were when you drew it - not as they are now. Four scenarios with targets: ARDS, COPD, atelectasis, circuit leak. Every setting you change is logged with the vital signs of that moment, and the whole session can be exported at the end. [ MEASUREMENTS THAT REFUSE ] No plateau pressure without an inspiratory hold. No auto-PEEP without an expiratory hold. No compliance when patient effort or a leak makes it meaningless. Knowing why a number cannot be measured matters as much as the number. Korean and English. Works entirely offline. No account, no ads, no in-app purchases, no data collected. This is a medical education simulator. It is not a medical device and must not be used for diagnosis or to set a real ventilator. Every value shown is computed from a mathematical model and is not a recording from a real patient.
Screenshots
Verdict
The clearest difference is update cadence: Ventlas at every 3 days against Asker Ortho's every 16 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.
Asker Ortho ships an update every 16 months, Ventlas every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.
| Parameter | Asker Ortho | Ventlas |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 360 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamed Ahmed Radwan | Sang Joon Park |
In-app purchases
Asker Ortho
No in-app purchases
Ventlas
No in-app purchases
Questions
Is Asker Ortho free?
Is Ventlas free?
Do Asker Ortho or Ventlas have ads?
Which is updated more often, Asker Ortho or Ventlas?
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