Double Lumen Downloads & RevenueDouble Lumen · App Store
Double Lumen is #64 in Medical Paid in United States and charting in 3 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperCrystal Clear Solutions
CategoryMedical
Price4.99 USD
Released
Rating★ 5.0 (1)
Version3.31
Age rating17+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)1k+ worldwide
📈Entered the top 100📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 6 events in the last 12 months
- 📈Double Lumen entered the top 100Top Paid · Medical · US
- 📈Double Lumen charting in a new countryUnited States
- 📈Double Lumen charting in a new countryMexico
- 📈Double Lumen charting in a new country in 2 chartsGermany · Italy
- 🆕Double Lumen first spotted by AppInsider#55 in Top Paid · Medical · United Kingdom
- 🆕Double Lumen released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
Best rank now
#64
Medical PaidMeasured
Double Lumen on the App Store
App details
App ID
459376323
Publisher
Crystal Clear Solutions
On the store since
Sep 2011
15 years on the store
Minimum OS
iOS 9.0+
iPhone 4s and later
Devices
iPhone · iPad · Watch
Universal purchase
Content rating
17+
1 content note below
Languages
1
EN
Size
92 MB
Also listed in
Education
Content notesFrequent/Intense Medical/Treatment Information
Double Lumen downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | MedicalPaid | #64 |
 Japan | MedicalPaid | #194 |
 Italy | MedicalPaid | #181 |
Apps near Double Lumen on the chart
Medical Paid, around #64.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
1.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Medical apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about Double Lumen
From the 15 most recent App Store reviews in the US.
Mostly positive (100% of recent reviews give 4–5 stars). People like it for being useful.
What people like
- Useful: “Recommend for anyone wanting practice with DLT placement!!”
About Double Lumen
This is real video double lumen and bronchial blocker simulator.
As the chief of thoracic anesthesia I have noticed that residents and even some attendings have trouble recognizing correct DLT placement. The problem is that there are fewer teaching cases requiring DLTs than regular ETTs, and you usually have an impatient surgeon hovering around you, leaving you little time to visually process what you are seeing through the bronchoscope.
We have created a DLT simulator that takes the patient, surgeon and all constraints out of the equation, giving you all the time you need to learn this valuable skill. The simulator gives you a basic control set allowing you to push the DLT in, pull it out, change the viewable lumen and finally confirm when you think the position is correct. The simulator will let you know how you are doing.
The simulator starts with a basic teaching program, going over a full bronchoscopy exam. You can then view a correctly and incorrectly placed DLT. From this point you have access to 10 simulations, including bronchial blocker positioning. The first few simulation help walk you through the correct movement in order to properly seat and confirm the placement of the left-sided DLt. As you advance through the simulations, you are given more control over the positioning. The video images are real bronchoscopy images so you are seeing what you would actually visualize in the operating room.
A lot of time went into capturing and editing video images. Even more time went into developing an intelligent simulator to take into account the multiple choices one has when moving the DLT. The result is the first bronchoscopy simulator that gives you the realistic feeling of actually looking down the bronchoscope, performing the exam and manipulating the DLT or blocker all by yourself.
As the chief of thoracic anesthesia I have noticed that residents and even some attendings have trouble recognizing correct DLT placement. The problem is that there are fewer teaching cases requiring DLTs than regular ETTs, and you usually have an impatient surgeon hovering around you, leaving you little time to visually process what you are seeing through the bronchoscope.
We have created a DLT simulator that takes the patient, surgeon and all constraints out of the equation, giving you all the time you need to learn this valuable skill. The simulator gives you a basic control set allowing you to push the DLT in, pull it out, change the viewable lumen and finally confirm when you think the position is correct. The simulator will let you know how you are doing.
The simulator starts with a basic teaching program, going over a full bronchoscopy exam. You can then view a correctly and incorrectly placed DLT. From this point you have access to 10 simulations, including bronchial blocker positioning. The first few simulation help walk you through the correct movement in order to properly seat and confirm the placement of the left-sided DLt. As you advance through the simulations, you are given more control over the positioning. The video images are real bronchoscopy images so you are seeing what you would actually visualize in the operating room.
A lot of time went into capturing and editing video images. Even more time went into developing an intelligent simulator to take into account the multiple choices one has when moving the DLT. The result is the first bronchoscopy simulator that gives you the realistic feeling of actually looking down the bronchoscope, performing the exam and manipulating the DLT or blocker all by yourself.
Latest updates
3.31
