Comparison

OB Patient Tracker 2 vs OB Calc (cloud)

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

Head to head
About

OB Patient Tracker 2

This app helps obstetricians, midwives, and medical trainees manage patient lists with detailed pregnancy information. Track fetal weight, labs, notes, and delivery status. It streamlines data entry and provides insights into pregnancy progression and delivery rates.

Highlights
  • Patient list management
  • Pregnancy dating and due date tracking
  • Estimated Fetal Weight (EFW) calculation
  • Prenatal lab and ultrasound data entry
  • Post-delivery patient tracking
  • Delivery rate graphing
Features
Read full description

So you're a busy Obstetrician, nurse-midwife, medical student or resident. How often have you needed to have an instant reference to the ever-changing list of patients you follow in your busy practice? Most EMR's currently in use simply cannot quickly fulfill this need... OB Patient Tracker is the only solution available for iOS that can solve this problem. Our app will allow you to quickly access your list of patients including multiple dating criteria and final due date, current estimate of EFW (estimated fetal weight), prenatal lab results, demographic data, photo, patient notes and information regarding induction or cesarean date. Data entry is quick and easy, which streamlines adding new patients to your list on-the-fly. As your patients progress through their pregnancies, you will be able to easily add notes, lab results and ultrasound data which will help you better evaluate fetal growth patterns and even estimate current EFWs based on recent ultrasound results. These incredibly useful features allow you to identify at risk pregnancies and will become your "peripheral brain" in the field... available anywhere, anytime. After delivery, patients are moved to your "delivered list". This will help you keep track of the current age and status of the babies you've delivered. You'll also be able to graph your productivity as well as visually see your cesarean and operative delivery rates. While the primary users of our app are typically physicians and midwives, medical students and residents will also love this app because it allows them to keep track of their case lists. Be sure to give our app a try for free today! Our users tell us they can't live without this app in daily practice; we'd love to know it helps you as much as it helps them! Note that this app is written and tested by physicians for other physicians. Note that OB Patient Tracker 2 is sold as a subscription service to further promote development of new features. Note the following about automatically recurring subscriptions: • You may choose from subscription periods as including 1 month, 3 months, 6 months, or 12 months. • Payment will be charged to iTunes Account at confirmation of purchase • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period • Your account will be charged for renewal within 24-hours prior to the end of the current period at the same rate for the period you select • Subscriptions can be managed and changed from within the app and you are always free to cancel the auto-renewal by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Support contact: support@obpatienttracker.com • Privacy policy can be viewed here: https://www.obpatienttracker.com/files/OBPatientsPrivacyPolicy.htm • Terms of Use can be viewed here: https://www.obpatienttracker.com/files/OBPatientTrackerTermsOfUse.htm

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.

Screenshots

OB Patient Tracker 24 screens
OB Calc (cloud)4 screens

Verdict

The call

The clearest difference is review sentiment: OB Patient Tracker 2 at 43% against OB Calc (cloud)'s 0%. OB Patient Tracker 2 also leads on update cadence (every 4 weeks vs every 3 months) and ratings volume (28 vs 5). OB Calc (cloud)'s advantage is rating (5.0 vs 3.8) and monetization model (free with in-app purchases vs subscription). 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 Patient Tracker 2 sells 4 in-app purchases, starting at $5.99 per month and OB Calc (cloud) sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OB Calc (cloud) holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: OB Patient Tracker 2 has 28 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 43% of OB Patient Tracker 2's written reviews are positive against 0% of OB Calc (cloud)'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

OB Patient Tracker 2 ships an update every 4 weeks, OB Calc (cloud) every 3 months. Both last shipped on November 11, 2026.

Scorecard6 real differences · 4 level
OB Patient Tracker 2 versus OB Calc (cloud): the parameters behind the verdict, then further details
ParameterOB Patient Tracker 2OB Calc (cloud)
PriceFreeFree
Rating3.8 (28 ratings)5.0 (5 ratings) — better
Positive reviews42.9% of reviews — better0.0% of reviews
Number of ratings28 — better5
Update frequencyEvery 4 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS9.0 — better18.0
Further details — not scored
Size47 MB14 MB
Age rating12+4+
DeveloperGreg MooreGlen Botha

Customer experience

OB Patient Tracker 2

All ratings27 ratings
Positive63.0%
Neutral11.1%
Negative25.9%
Written reviews21 reviews
Positive42.9%
Neutral9.5%
Negative47.6%

OB Calc (cloud)

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

OB Patient Tracker 2

Subscriptions4
  • 1 Month Full Access$5.991 Month
  • 3 Months Full Access$15.993 Months
  • 6 Months Full Access$24.996 Months
Show 1 more
  • 12 Months Full Access$39.991 Year
2 purchases

OB Calc (cloud)

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

Questions

Is OB Patient Tracker 2 free?
OB Patient Tracker 2 is free to download, with in-app purchases available.
Is OB Calc (cloud) free?
OB Calc (cloud) is free to download, with in-app purchases available.
Which has better reviews, OB Patient Tracker 2 or OB Calc (cloud)?
OB Calc (cloud) is rated higher. OB Patient Tracker 2 averages 3.8 out of 5 from 28 ratings, while OB Calc (cloud) averages 5.0 from 5 ratings.
Do OB Patient Tracker 2 or OB Calc (cloud) have ads?
Neither OB Patient Tracker 2 nor OB Calc (cloud) shows ads.
Which is updated more often, OB Patient Tracker 2 or OB Calc (cloud)?
OB Patient Tracker 2 ships an update every 4 weeks, and OB Calc (cloud) every 3 months. Most recently, OB Patient Tracker 2 was updated on November 11, 2026 and OB Calc (cloud) on November 11, 2026.

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