Comparison

Preg Wheel vs ACOG

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

Head to head
About

Preg Wheel

This app provides a digital pregnancy wheel for iPhone users, eliminating the need for a physical one. It allows for quick input of key dates and offers accurate results, accounting for calendar variations. The app also saves your information for future use and includes important dates for screenings throughout the pregnancy.

Highlights
  • Input LMP, EDD, EGA, and IVF dates
  • Accurate date calculations with leap year support
  • Save and restore input dates
  • Track important screening test dates
  • View dates for 1st Trimester US, CVS, Quad Screen, and more
Features
Read full description

Simple and fast pregnancy wheel available for the iPhone, No need to carry a paper wheel. The best part is the app is completely free. Features ------------------------------- 1) Quickly input various dates with the date wheel: • Last menstrual period (LMP) • Estimated date of delivery (EDD) • Estimated Gestational Age (EGA) • IVF dates 2) Accurate results: Preg Wheel provides exact dates and accounts for all calendar variance, including leap years. 3) Persistence: Preg Wheel can save the date and date type and restore them when launched to streamline your workflow. 4) Now with even more relevant dates for the entire pregnancy. Know in advance when specific screening tests need to be performed. • 1st Trimesters US • CVS • Quad Screen • Amino • Anatomy US • GTT • Anti-D Prophylaxis • GBS Screen • Elective Delivery

About

ACOG

This app provides obstetricians and gynecologists with essential tools and resources for women's healthcare. Access clinical guidelines, practice advisories, and helpful calculators to support your medical practice.

Highlights
  • EDD Calculator
  • Indicated Delivery tool (members only)
  • Clinical Consensus documents
  • Clinical Practice Guidelines
  • Practice Advisories
Features
Read full description

The American College of Obstetricians and Gynecologists Ob-Gyns: Download the ACOG app and stay connected with authoritative information from the leading experts in women’s health care. Get valuable tools, resources, and clinical guidelines to help you in your practice. • EDD Calculator – Calculate the due date according to guidelines jointly developed by ACOG, AIUM, and SMFM • Indicated Delivery (ACOG members only) – Provides members with suggestions related to the timing of delivery based on selected conditions, the patient’s EDD/EGA, and ACOG’s clinical guidance • Clinical Consensus, Clinical Practice Guidelines, and Practice Advisories – Get the latest on techniques, clinical management issues, and emerging issues in obstetric and gynecologic practice • And more!

Screenshots

Preg Wheel4 screens
ACOG4 screens

Verdict

The call

The clearest difference is rating: ACOG at 4.9 against Preg Wheel's 4.0. ACOG also leads on review sentiment (90% vs 59%) and ratings volume (6.3K vs 62). Preg Wheel's advantage is iOS requirement (10.0 vs 17.0). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ACOG holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: ACOG has 6.3K ratings behind it against 62, so its average is the more settled of the two. Written reviews point the same way: 59% of Preg Wheel's written reviews are positive against 90% of ACOG's.

UpkeepUpdate frequency

Preg Wheel ships an update every 9 months, ACOG every 3 months. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

Scorecard5 real differences · 5 level
Preg Wheel versus ACOG: the parameters behind the verdict, then further details
ParameterPreg WheelACOG
PriceFreeFree
Rating4.0 (62 ratings)4.9 (6.3K ratings) — better
Positive reviews58.6% of reviews89.6% of reviews — better
Number of ratings626.3K — better
Update frequencyEvery 9 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.0
Further details — not scored
Size24 MB29 MB
Age rating17+17+
DeveloperAndrew YuFountainhead Mobile Solutions

Customer experience

Preg Wheel

All ratings62 ratings
Positive72.6%
Neutral4.8%
Negative22.6%
Written reviews58 reviews
Positive58.6%
Neutral1.7%
Negative39.7%

ACOG

All ratings6,335 ratings
Positive99.2%
Neutral0.5%
Negative0.3%
Written reviews48 reviews
Positive89.6%
Neutral4.2%
Negative6.3%

User reviews

Preg Wheel

From 62 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 🚀 Fast calculations
  • ✅ Accurate results
  • 👍 Great for medical professionals
  • 👍 Efficient paper wheel alternative

Room to improve

  • 🐛 Not updated for latest iOS
  • 🐛 Functionality issues after updates
  • 🐛 IVF dating function not working
  • 🐛 Inconsistent calculations
  • 🐛 App crashes/shuts down

ACOG

From 6.3K App Store ratings

What we love

  • 🚀 Quick access to clinical guidance
  • 👍 Well-organized and easy to navigate
  • 🔍 Convenient way to stay up-to-date with guidelines
  • ⚡ Essential for OB-GYNs and providers
  • 📚 Excellent resource for clinical reference

Room to improve

  • 🐛 Occasional crashes and compatibility issues
  • 🔍 Could use more advanced search functionality
  • 👨‍⚕️ Requires ACOG membership to access full features

Bugs and requests

Preg Wheel

Reported bugs

13 issues
  • IVF dating function does not work
  • Cannot calculate due date based on weeks and ultrasound date
  • LMP does not change when due date is entered, and vice versa
  • App not compatible with iOS 14
  • App not compatible with iOS 11
Show 8 more
  • App not compatible with iOS 7
  • App not working after iPhone updates
  • App crashes or shuts down
  • Gestational weeks are wrong
  • All numbers came up wrong
  • Does not work on iPad anymore
  • Freezes phone
  • Instant shutdown

Requested features

5 requests
  • Update for latest iOS
  • Update IVF dating function
  • Add FTS window
  • Ensure compatibility with newer devices/OS
  • Local time zone support

ACOG

Reported bugs

2 issues
  • App crashes on launch after updates
  • Compatibility issues with older iOS versions

Requested features

3 requests
  • Bishop score calculator
  • More extensive search engine
  • Improved user interface

In-app purchases

None

Preg Wheel

No in-app purchases

None

ACOG

No in-app purchases

Questions

Is Preg Wheel free?
Preg Wheel is free to download, with no in-app purchases.
Is ACOG free?
ACOG is free to download, with no in-app purchases.
Which has better reviews, Preg Wheel or ACOG?
ACOG is rated higher. Preg Wheel averages 4.0 out of 5 from 62 ratings, while ACOG averages 4.9 from 6.3K ratings.
Do Preg Wheel or ACOG have ads?
Neither Preg Wheel nor ACOG shows ads.
Which is updated more often, Preg Wheel or ACOG?
Preg Wheel ships an update every 9 months, and ACOG every 3 months. Most recently, Preg Wheel was updated on October 15, 2026 and ACOG on October 18, 2026.

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