Comparison

Perfect OB Tracker vs Prego OB Wheel

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

Head to head
About

Perfect OB Tracker

This app provides a comprehensive pregnancy wheel and tracker for medical professionals. It allows for managing multiple patients, calculating due dates, tracking gestational age, and even monitoring postpartum information. The tool offers quick calculations and detailed fetal growth estimates.

Highlights
  • Patient management
  • Due date calculation
  • Gestational age tracking
  • Postpartum tracking
  • Quick calculator
  • Fetal growth estimates
  • HIPAA compliant passcode lock
Features
Currently charting
Read full description

Simple, fast, yet more thorough than any other pregnancy wheel available for the iPhone, Perfect OB Tracker is better than just a replacement for your trusty paper wheel. • Keep track of any number of pregnant patients with at-a-glance due date and gestational age • Synchronize to all your iOS devices via iCloud (optional) • Sort by name or due date • Search by name or medical record number • Keep notes on each patient • Track postpartum, as well, noting delivery date, gender, and name • Quick Calculator lets you use the OB wheel without having to enter patient data for one-off calculations 1) Start with one of: • Last menstrual period (LMP) • Conception date • Estimated date of confinement/delivery (EDC) • Ultrasound dating: Number of weeks and days gestation as of a given date ("X Weeks"). Enter dates quickly with the intelligent keypad (which knows when you're done typing the month, for example, and automatically moves to the day) or with the spinning date wheel. 2) Get thorough results: All the information you would expect from a classic wheel, plus more: • Estimated Due Date • LMP Date • Conception Date • 1st Trimester End Date • 2nd Trimester End Date • Gestational Age • Conceptional Age • Expected Fetal Length based on standard fetal growth curves • Expected Fetal Weight based on standard fetal growth curves ("How much does my baby weigh, doctor?") Results are relative to 'today' by default; this can be quickly changed to reflect any date by tapping the 'today' button and selecting a new date. 3) Accurate results: Perfect OB Wheel provides exact dates and accounts for all calendar variance, including leap years. 4) Secure: HIPAA complaint passcode locking keeps your patient information safe

About

Prego OB Wheel

This app is a simple obstetrical calculator and patient tracker. It helps healthcare professionals quickly determine pregnancy dates, gestational age, and track patient progress. Save patient information and notes for easy reference.

Highlights
  • Calculate pregnancy dates (LMP, ultrasound, conception, EDD)
  • Determine gestational age
  • Track pregnancies
  • Track postpartum patients
  • Save patient notes (Rh, GBS, GTPAL)
  • List upcoming deliveries
Features
Read full description

Quick, accurate, easy-to-use obstetrical date calculator and patient tracker designed and developed by family physician Dr. Émilie Coudière, MD. Calculate pregnancy dates from LMP, ultrasound, conception, or EDD. Determine gestational age as of any date. Track pregnancies and postpartum patients. QUICKLY CALCULATE • Pregnancy dates from LMP, ultrasound, conception, or EDD. • Patient's gestational age as of today. • Gestational age on future date — i.e. How many weeks will my patient be on June 15th? • Date of future gestational age — i.e. When will my patient be 28 weeks? QUICKLY SAVE • Patients' dates by simply adding a name. • Add quick notes to patients — i.e. Rh, GBS, GTPAL, etc. • Add delivery date to track postpartum patients. QUICKLY REFERENCE • Previously saved patients. • List of upcoming deliveries. • List of postpartum patients. That's it. One screen. Super simple. Enjoy! Enjoying Prego OB Wheel? Please leave a review! It means a lot to us and helps others discover the app. Thanks and take care! * Terms of use are available at https://jeffreyfulton.carrd.co

Screenshots

Perfect OB Tracker4 screens
Prego OB Wheel4 screens

Verdict

The call

The clearest difference is update cadence: Perfect OB Tracker at every 2 weeks against Prego OB Wheel's every 2 months. Perfect OB Tracker also leads on chart position (#91 vs unranked) and review sentiment (74% vs 66%). Prego OB Wheel's advantage is price ($4.99 vs $6.99). On rating, ratings volume, ads and in-app purchases 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

Perfect OB Tracker costs $6.99 and Prego OB Wheel $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Perfect OB Tracker against 4.9 for Prego OB Wheel. Both are backed by a comparable volume of ratings — 413 and 325 respectively. Written reviews are what separate them: 74% of Perfect OB Tracker's written reviews are positive against 66% of Prego OB Wheel's.

UpkeepUpdate frequency

Perfect OB Tracker ships an update every 2 weeks, Prego OB Wheel every 2 months. Both last shipped on October 26, 2026.

Scorecard6 real differences · 5 level
Perfect OB Tracker versus Prego OB Wheel: the parameters behind the verdict, then further details
ParameterPerfect OB TrackerPrego OB Wheel
Price$6.99$4.99 — better
Rating4.9 (413 ratings)4.9 (325 ratings) — better
Positive reviews74.1% of reviews — better65.5% of reviews
Number of ratings413 — better325
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#91 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size12 MB7 MB
Age rating17+4+
DeveloperEvan SchoenbergJeffrey Fulton

Customer experience

Perfect OB Tracker

All ratings408 ratings
Positive97.8%
Neutral1.0%
Negative1.2%
Written reviews54 reviews
Positive74.1%
Neutral5.6%
Negative20.4%

Prego OB Wheel

All ratings324 ratings
Positive97.8%
Neutral1.9%
Negative0.3%
Written reviews29 reviews
Positive65.5%
Neutral10.3%
Negative24.1%

User reviews

Perfect OB Tracker

From 413 App Store ratings

What we love

  • 👍 Easy to use
  • 👍 Convenient
  • 👍 Helpful for tracking clients
  • 👍 Tracks EDD and age post-birth
  • 👍 Records sex and name of baby

Room to improve

  • 🐛 App stopped working
  • 🐛 Only states weeks, not days
  • 🐛 Lost records when changing phones
  • 🐛 Data sync issues with iPad
  • 🐛 Lacks options for notes and customization

Prego OB Wheel

From 325 App Store ratings

What we love

  • 👍 Easy to use interface
  • 🚀 Fast and accurate calculations
  • 👍 Practical and helpful in clinic
  • 👍 Straightforward and no-frills design
  • 👍 Good for identifying patients near due date

Room to improve

  • 🐛 Lag in loading patient lists
  • 🐛 Postpartum patients appear first, pushing current patients down
  • 🐛 Limited information can be included per case
  • 🐛 Text on screen not appearing properly on some devices
  • 🐛 Difficulty sharing data with team members

Bugs and requests

Perfect OB Tracker

Reported bugs

9 issues
  • App just stopped working properly
  • App stopped working out of nowhere
  • Lost all records when changing phones
  • Syncing data to iPad is not working
  • Dates change erratically when toggling between patients
Show 4 more
  • App doesn't open on iOS 6
  • Update caused app to not open and lost all info
  • Won't sync to new iPhone
  • iCloud option not working better

Requested features

48 requests
  • Ability to share data with assistants
  • More options for writing notes
  • More customizable for practice
  • Way to share data with assistants
  • Export list to Word or Excel
Show 43 more
  • Ability to copy and paste data
  • List of patients due each month through the year
  • Android version of the app
  • Ability to sync with other users
  • Enter phone number and dial directly from the app
  • Add delivery date to prevent patients appearing as post dates
  • Ability to keep track of delivered patients for reporting
  • Identify primary vs. secondary midwife clients
  • Amend name, MRN, and photo after setup
  • Ability to sync up with other people
  • Link to phone's calendar for appointments
  • Option to mark patients as delivered and archive them
  • Add alarm for certain dates
  • Postpartum tracking
  • Enter phone number and relate to phone agenda
  • Ability to keep patient name after delivery for a few months
  • Delivery date and postpartum date counter
  • Sync with iPad through the cloud
  • More functionality for gestational age and patient data (infections, blood type)
  • iCloud communication between devices
  • More complicated password system
  • Add delivery date and track time since birth for postnatal care
  • Option to enter phone number and dial directly
  • Add delivery date so patients don't appear as post dates
  • Ability to keep track of delivered patients for reporting
  • More options for notes and customization
  • Identify primary vs. secondary midwife clients
  • Amend name, MRN, and photo after setup
  • Sync with other users
  • Android version
  • Export data
  • More detailed patient information fields (parity, delivery route, age, comorbidity, health plan)
  • Add alarm for specific dates
  • Postpartum tracking
  • Link appointments to phone calendar
  • Option to delete delivered patients
  • More complicated password system
  • Sync with iPad via iCloud
  • Ability to keep patient name after delivery for follow-up
  • Delivery date and postpartum date counter
  • Sync with iPad through the cloud
  • More detailed patient data fields
  • iCloud sync between devices

Prego OB Wheel

Reported bugs

8 issues
  • Lag in loading patients list
  • Text on screen doesn't appear properly
  • Last update ruined functionality
  • Cannot check simple EDD
  • No reset unless you save
Show 3 more
  • US date input for gestation is fiddly to undo
  • New version not in French
  • Gives false EDD

Requested features

7 requests
  • Search tab for patients
  • Separate tabs for antenatal and postnatal patients
  • Cloud function for syncing between devices
  • Option to calculate gestational age by ultrasound
  • Highlight today's date on date wheels
Show 2 more
  • Option for Spanish language
  • Handy, classy, and mistake-free update

In-app purchases

None

Perfect OB Tracker

No in-app purchases

None

Prego OB Wheel

No in-app purchases

Questions

Is Perfect OB Tracker free?
Perfect OB Tracker costs $6.99, with no in-app purchases.
Is Prego OB Wheel free?
Prego OB Wheel costs $4.99, with no in-app purchases.
Which has better reviews, Perfect OB Tracker or Prego OB Wheel?
Prego OB Wheel is rated higher. Perfect OB Tracker averages 4.9 out of 5 from 413 ratings, while Prego OB Wheel averages 4.9 from 325 ratings.
Do Perfect OB Tracker or Prego OB Wheel have ads?
Neither Perfect OB Tracker nor Prego OB Wheel shows ads.
Which is updated more often, Perfect OB Tracker or Prego OB Wheel?
Perfect OB Tracker ships an update every 2 weeks, and Prego OB Wheel every 2 months. Most recently, Perfect OB Tracker was updated on October 26, 2026 and Prego OB Wheel on October 26, 2026.

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