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.
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.
- Patient management
- Due date calculation
- Gestational age tracking
- Postpartum tracking
- Quick calculator
- Fetal growth estimates
- HIPAA compliant passcode lock
Read full descriptionHide 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
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.
- Calculate pregnancy dates (LMP, ultrasound, conception, EDD)
- Determine gestational age
- Track pregnancies
- Track postpartum patients
- Save patient notes (Rh, GBS, GTPAL)
- List upcoming deliveries
Read full descriptionHide 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
Verdict
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
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.
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.
Perfect OB Tracker ships an update every 2 weeks, Prego OB Wheel every 2 months. Both last shipped on October 26, 2026.
| Parameter | Perfect OB Tracker | Prego OB Wheel |
|---|---|---|
| Price | $6.99 | $4.99 — better |
| Rating | 4.9 (413 ratings) | 4.9 (325 ratings) — better |
| Positive reviews | 74.1% of reviews — better | 65.5% of reviews |
| Number of ratings | 413 — better | 325 |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #91 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | Evan Schoenberg | Jeffrey Fulton |
Customer experience
Perfect OB Tracker
Prego OB Wheel
User reviews
Perfect OB Tracker
From 413 App Store ratingsWhat 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 ratingsWhat 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 moreShow fewer
- 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 moreShow fewer
- 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 moreShow fewer
- 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 moreShow fewer
- Option for Spanish language
- Handy, classy, and mistake-free update
In-app purchases
Perfect OB Tracker
No in-app purchases
Prego OB Wheel
No in-app purchases
Questions
Is Perfect OB Tracker free?
Is Prego OB Wheel free?
Which has better reviews, Perfect OB Tracker or Prego OB Wheel?
Do Perfect OB Tracker or Prego OB Wheel have ads?
Which is updated more often, Perfect OB Tracker or Prego OB Wheel?
Other comparisons















