Comparison

OB Calc (cloud) vs Storc

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

Head to head
About

OB Calc (cloud)

This medical app helps obstetricians efficiently calculate key patient test date windows. It offers multiple calculation methods and allows for saving patient data and generating PDF reports. A free trial is available, followed by a subscription for full access.

Highlights
  • LMP, EDC, Ultrasound, CRL, and IVF calculations
  • Customizable test date ranges
  • Cross-device data syncing
  • PDF report generation
  • Save individual patient data
Features
Read full description

While similar to a pregnancy wheel, OB Calc (cloud) is specifically designed by an obstetrician, for obstetricians. Finally obstetricians have an efficient and simple method to calculate the important test date windows for patients. CALCULATION METHODS • Last Menstrual Period (LMP) • Expected Delivery Date (EDC) • Sonogram Date and Fetal Age (Sonogram) • Crown Rump Length (CRL) • In Vitro Fertilization (IVF) Try the app for free for 7 days. A low monthly autorenewable subscription gives users access to premium features such as all calculation methods and saving of individual patient data. You can reach the developer directly at support@inpocketsolutions.com FEATURES • LMP, EDC, Ultrasound, CRL and IVF Method Calculations • Customize up to 15 tests, with date ranges • Data synced across multiple devices • Generate a PDF file • Save individual patient data CRL data reference : https://obgyn.onlinelibrary.wiley.com/doi/pdf/10.1002/uog.7654 Terms & Conditions: https://inpocketsolutions.com/terms ** Disclaimer Remember to test out the app on your specific device to ensure calculations are verified to your expectation.

About

Storc

Features
Read full description

Storc is an OBGYN patient tracker designed to make managing all of your patients, information and appointments as easy as possible through our app. All information including patient information, delivery dates synced to your calendar and more are managed in the cloud so you never have to worry about losing any of your important data. We are currently building a personal web dashboard that can do everything your app can do (plus extras such as viewing your statistics) all from your desktop, which syncs in real time with your app so information is always kept up to date and can be managed by your secretaries! Terms of Service (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mystorc.com/PrivacyPolicy

Screenshots

OB Calc (cloud)4 screens
Storc4 screens

Verdict

The call

The clearest difference is update cadence: Storc at every 4 weeks against OB Calc (cloud)'s every 3 months. Storc also leads on iOS requirement (15.1 vs 18.0). 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. OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month and Storc sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OB Calc (cloud) ships an update every 3 months, Storc every 4 weeks. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.

Scorecard2 real differences · 8 level
OB Calc (cloud) versus Storc: the parameters behind the verdict, then further details
ParameterOB Calc (cloud)Storc
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size14 MB38 MB
Age rating4+4+
DeveloperGlen BothaYuliyan Stefanov

In-app purchases

2 purchases

OB Calc (cloud)

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Premium (Annual)$29.991 Year
2 purchases

Storc

Subscriptions2
  • Standard monthly7 Days trial$2.991 Month
  • Standard annually$29.991 Year

Questions

Is OB Calc (cloud) free?
OB Calc (cloud) is free to download, with in-app purchases available.
Is Storc free?
Storc is free to download, with in-app purchases available.
Do OB Calc (cloud) or Storc have ads?
Neither OB Calc (cloud) nor Storc shows ads.
Which is updated more often, OB Calc (cloud) or Storc?
OB Calc (cloud) ships an update every 3 months, and Storc every 4 weeks. Most recently, OB Calc (cloud) was updated on September 21, 2026 and Storc on September 11, 2026.

Other comparisons