Comparison

OB Wheels vs ASCCP Management Guidelines

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

Head to head
About

OB Wheels

This app calculates due dates, gestational age, and reconciles sonogram and LMP dates using a digital OB wheel and calendar. It offers a familiar interactive wheel for precise date calculations, accounting for leap years.

Highlights
  • Calendar calculator for EDD/EDC
  • Gestational age calculation
  • Interactive digital OB wheel
  • Reconciliation of due dates
  • Leap year accuracy
Features
Read full description

Does the world need another OB-wheel-due-date-calculator app? You bet! OB Wheels combines three things that clinicians need to derive all the dates necessary in pregnancy care, and no other app has this combination. It contains a calendar calculator to determine EDD (EDC) from LMP or from a sonogram report. The calendar calculator also provides gestational age (EGA) as of any date for a given EDD or LMP. Because the calculator works off the real calendar, it is accurate for leap years too. Then for all of you who miss your cardboard OB wheel, the app contains one which you can rotate, pinch and zoom, and generally play with just like a regular cardboard wheel. It's a little tricky to learn how to plant two fingers and rotate them rather than pinch-and-zoom to get rotation versus resizing. But the wheel works and it is accurate, especially so because you can zoom in to be sure where the little date hash lines lie. Finally, the app notes the most recent committee opinion scheme from ACOG on how one might reconcile due dates from LMP and sonograms to arrive at a single final EDD. To my knowledge, the scheme is authority-based and no better or worse than other schemes, but my practice and my learners need a single clear scheme, so this app includes one for easy reference. As an educator and clinician myself, I am grateful for feedback. Email me via the contact email at my website.

About

ASCCP Management Guidelines

Access evidence-based recommendations for managing abnormal cervical cancer screening results and precursors. This app helps healthcare professionals navigate consensus guidelines for post-colposcopy and post-treatment scenarios, offering precise risk estimation and tailored interventions.

Highlights
  • Risk-based management guidelines
  • Abnormal screening result management
  • Post-colposcopy management
  • Post-treatment management
  • Risk estimation
  • Evidence-based recommendations
Features
Read full description

The ASCCP Risk-Based Management Consensus Guidelines provide evidence-based recommendations for managing abnormal cervical cancer screening results and cancer precursors, including post-colposcopy and post-treatment scenarios. ASCCP is pleased to offer this app to streamline navigation of the ASCCP Risk-Based Management Consensus Guidelines for abnormal cervical cancer screening tests and cancer precursors. The guidelines articles, as published in the Journal of Lower Genital Tract Disease, as well as the comprehensive risk estimates, can be accessed through https://www.asccp.org/guidelines. These evidence-based management guidelines, initially developed in 2019, came together through a consensus process of 19 organizations. The updated management guidelines aim to: • Allow for a more complete and precise estimation of risk • Provide more appropriate intervention for high-risk individuals (detect and treat more precancer) • Recommend less intervention for low-risk individuals (decrease testing and treatment that won’t prevent cancer and may cause reproductive harm) • Allow for the future addition of new risk modifiers and screening and management technologies See https://www.asccp.org/UserGuide for tips on using the app.

Screenshots

OB Wheels4 screens
ASCCP Management Guidelines4 screens

Verdict

The call

The clearest difference is price: OB Wheels at Free against ASCCP Management Guidelines's $14.99. OB Wheels also leads on iOS requirement (7.0 vs 11.2). ASCCP Management Guidelines's advantage is rating (4.8 vs 2.3) and update cadence (every 3 months vs every 18 months). On ads, in-app purchases, monetization model 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

OB Wheels is free to download; ASCCP Management Guidelines costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ASCCP Management Guidelines holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: ASCCP Management Guidelines has 8.8K ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 20% of OB Wheels's written reviews are positive against 33% of ASCCP Management Guidelines's.

UpkeepUpdate frequency

OB Wheels ships an update every 18 months, ASCCP Management Guidelines every 3 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard7 real differences · 4 level
OB Wheels versus ASCCP Management Guidelines: the parameters behind the verdict, then further details
ParameterOB WheelsASCCP Management Guidelines
PriceFree — better$14.99
Rating2.3 (15 ratings)4.8 (8.8K ratings) — better
Positive reviews20.0% of reviews33.0% of reviews — better
Number of ratings158.8K — better
Update frequencyEvery 18 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank—#3 — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.0 — better11.2
Further details — not scored
Size3 MB47 MB
Age rating17+17+
DeveloperJoshua D. steinbergAmerican Society for Colposcopy and Cervical Pathology Inc

Customer experience

OB Wheels

All ratings15 ratings
Positive20.0%
Neutral13.3%
Negative66.7%
Written reviews10 reviews
Positive20.0%
Neutral10.0%
Negative70.0%

ASCCP Management Guidelines

All ratings8,595 ratings
Positive94.4%
Neutral2.0%
Negative3.6%
Written reviews94 reviews
Positive33.0%
Neutral12.8%
Negative54.3%

Bugs and requests

OB Wheels

Not enough reviews yet to summarise bugs or requests.

ASCCP Management Guidelines

Reported bugs

3 issues
  • Crashes after entering data
  • Missing options for certain clinical scenarios
  • Inconsistent recommendations compared to previous version

Requested features

4 requests
  • Better search functionality
  • Streamlined workflow
  • Improved algorithm visualization
  • Automatic updates for previous app users

In-app purchases

None

OB Wheels

No in-app purchases

None

ASCCP Management Guidelines

No in-app purchases

Questions

Is OB Wheels free?
OB Wheels is free to download, with no in-app purchases.
Is ASCCP Management Guidelines free?
ASCCP Management Guidelines costs $14.99, with no in-app purchases.
Which has better reviews, OB Wheels or ASCCP Management Guidelines?
ASCCP Management Guidelines is rated higher. OB Wheels averages 2.3 out of 5 from 15 ratings, while ASCCP Management Guidelines averages 4.8 from 8.8K ratings.
Do OB Wheels or ASCCP Management Guidelines have ads?
Neither OB Wheels nor ASCCP Management Guidelines shows ads.
Which is updated more often, OB Wheels or ASCCP Management Guidelines?
OB Wheels ships an update every 18 months, and ASCCP Management Guidelines every 3 months. Most recently, OB Wheels was updated on October 29, 2026 and ASCCP Management Guidelines on October 27, 2026.

Other comparisons