Comparison

Obstetrical Calculator vs OB Wheel+

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

Head to head
About

Obstetrical Calculator

This medical application provides essential calculations for obstetrics. It serves as a clinical support tool, but all results require confirmation by a healthcare professional. It is not a replacement for professional medical judgment.

Highlights
  • Obstetrical calculations
  • Clinical support tool
  • Requires professional confirmation
  • Supports iOS devices
Features
Read full description

Obstetrical Calculator updates for ios *.02 All calculations must be confirmed before use. The suggested results are not a substitute for clinical judgment. Neither expresoweb.com nor any other party involved in the preparation or publication of this site shall be liable for any special, consequential, or exemplary damages resulting in whole or part from any user's use of or reliance upon this material

About

OB Wheel+

This medical app offers precise pregnancy calculations for healthcare professionals and expectant parents. It features multiple calculation modes, projected gestational age, and a timeline of key clinical milestones and screenings. Users can also filter milestones by trimester and compare fetal growth with relatable size comparisons.

Highlights
  • Multiple calculation modes (LMP, EDD, IVF, GA)
  • Projected gestational age calculation
  • Clinical milestone timeline
  • Trimester filtering
  • Fetal size comparisons
Features
Read full description

Designed by Andrew Yu, MD, A double board certified OB/GYN and Clinical Informatics. OB Wheel+ is a streamlined and reliable tool for calculating essential pregnancy dates. Whether you are a clinician in a fast-paced environment or an expectant parent tracking milestones, this app provides the accuracy you need with an intuitive, modern interface. Key Features: • Multiple Calculation Modes: Calculate based on Last Menstrual Period (LMP), Known Due Date (EDD), IVF Transfer Date (Day 3 or Day 5), or Gestational Age (GA) from a specific scan date. • Projected GA: Easily determine what the gestational age will be on any future date. • Clinical Milestones: Automatically generates a comprehensive timeline for essential screenings, including NIPT, Anatomy Scan, Glucose testing, and vaccinations including RSV during the appropriate season. • Trimester Filtering: Focus on the milestones that matter right now with easy T1, T2, and T3 filters. • Fetal Size Comparisons: Track baby’s growth with relatable size comparisons. Medical Disclaimer: This app is intended for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this application.

Screenshots

Obstetrical Calculator4 screens
OB Wheel+4 screens

Verdict

The call

The clearest difference is in-app purchases: OB Wheel+ at none against Obstetrical Calculator's 4. On price, ads, device support and iOS requirement 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. Obstetrical Calculator sells 4 one-off in-app purchases. OB Wheel+ asks for nothing beyond the download.

Scorecard2 real differences · 8 level
Obstetrical Calculator versus OB Wheel+: the parameters behind the verdict, then further details
ParameterObstetrical CalculatorOB Wheel+
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 20 months—
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.6
Further details — not scored
Size4 MB11 MB
Age rating4+17+
DeveloperManuel PosadasAndrew Yu

Customer experience

Obstetrical Calculator

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

OB Wheel+

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Obstetrical Calculator

One-time4
  • Give a little$0.99
  • Remove Advertisements$0.99
  • Give a lot$4.99
Show 1 more
  • Make my day$9.99
None

OB Wheel+

No in-app purchases

Questions

Is Obstetrical Calculator free?
Obstetrical Calculator is free to download, with in-app purchases available.
Is OB Wheel+ free?
OB Wheel+ is free to download, with no in-app purchases.
Do Obstetrical Calculator or OB Wheel+ have ads?
Both Obstetrical Calculator and OB Wheel+ show ads.

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