VBAC Calculator Downloads & RevenueVBAC Calculator - Predict success rates for vaginal birth after cesarean · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperBetter Leap Media
CategoryMedical
Price2.99 USD
Released
Rating★ 4.5 (10)
Version1.1
Age rating12+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)1k+ worldwide
VBAC Calculator - Predict success rates for vaginal birth after cesarean update history & changes
Last change · 7 events since 17 May 2016Full timeline ↓📈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
- 📈VBAC Calculator - Predict success rates for vaginal birth after cesarean entered the top 100Top Paid · Medical · BR
- 📈VBAC Calculator - Predict success rates for vaginal birth after cesarean charting in a new countryBrazil
- 📈VBAC Calculator - Predict success rates for vaginal birth after cesarean entered the top 100Top Paid · Medical · US
- 📈VBAC Calculator - Predict success rates for vaginal birth after cesarean charting in a new countryUnited States
- 🆕VBAC Calculator - Predict success rates for vaginal birth after cesarean first spotted by AppInsider#20 in Top Paid · Medical · Canada
- 🆕VBAC Calculator - Predict success rates for vaginal birth after cesarean 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
4.5 ★
10 ratings
Measured
VBAC Calculator - Predict success rates for vaginal birth after cesarean on the App Store
App details
App ID
1113088441
Publisher
David Papandrew
On the store since
May 2016
10 years on the store
Minimum OS
iOS 9.3+
iPhone 4s and later
Devices
iPhone · iPad
Content rating
12+
2 content notes below
Languages
1
EN
Size
11 MB
Also listed in
Health & Fitness
Content notesInfrequent/Mild Medical/Treatment InformationInfrequent/Mild Sexual Content and Nudity
VBAC Calculator - Predict success rates for vaginal birth after cesarean 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 |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.5 ★
10 ratings
Measured
Ratings
10
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.6★
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.
About VBAC Calculator - Predict success rates for vaginal birth after cesarean
The VBAC Calculator is a convenient tool for predicting the success rate of a vaginal birth after cesarean (VBAC). The app consists of 3 calculators which use patient-specific data in order to generate a predictive score.
The "Standard" calculator uses the widely-used predictive model published in Grobman, William A., et al., “Development of a nomogram for prediction of vaginal birth after cesarean delivery,” Obstetrics & Gynecology, volume 109(4), pp. 806-812, 2007. This predictive model uses pre-pregnancy BMI and prior medical history to predict VBAC success rates. It can be used at any time during the term of pregnancy during a clinical visit.
The "Standard + Admission Factors" calculator is a variant of the 2007 Grobman prediction method as found in the following publication: Grobman William A., et al., “Does information available at the time of admission for delivery improve prediction of successful birth after cesarean?” American Journal of Perinatology, volume 26(10), pp.693-701, 2009. This model uses additional information at time of hospital admission to predict VBAC success rates.
Lastly, the "Simple" calculator also uses information at time of admission (same as the "Standard + Admissions Factors" calculator). The source for this predictive calculator is: Metz, Tori D., et al., “Simple, validated vaginal birth after cesarean delivery prediction model for use at the time of admission,” Obstetrics & Gynecology, volume 122(3), pp.571-578, 2013. This is a straight-forward prediction method that combines BMI and age information with the well-known Bishop Score calculation to determine VBAC success.
Please note that is app is provided solely for educational purposes and should not be used in lieu of sound, professional medical guidance.
The "Standard" calculator uses the widely-used predictive model published in Grobman, William A., et al., “Development of a nomogram for prediction of vaginal birth after cesarean delivery,” Obstetrics & Gynecology, volume 109(4), pp. 806-812, 2007. This predictive model uses pre-pregnancy BMI and prior medical history to predict VBAC success rates. It can be used at any time during the term of pregnancy during a clinical visit.
The "Standard + Admission Factors" calculator is a variant of the 2007 Grobman prediction method as found in the following publication: Grobman William A., et al., “Does information available at the time of admission for delivery improve prediction of successful birth after cesarean?” American Journal of Perinatology, volume 26(10), pp.693-701, 2009. This model uses additional information at time of hospital admission to predict VBAC success rates.
Lastly, the "Simple" calculator also uses information at time of admission (same as the "Standard + Admissions Factors" calculator). The source for this predictive calculator is: Metz, Tori D., et al., “Simple, validated vaginal birth after cesarean delivery prediction model for use at the time of admission,” Obstetrics & Gynecology, volume 122(3), pp.571-578, 2013. This is a straight-forward prediction method that combines BMI and age information with the well-known Bishop Score calculation to determine VBAC success.
Please note that is app is provided solely for educational purposes and should not be used in lieu of sound, professional medical guidance.
Latest updates
1.1
UI improvements and bug fixes.
