Perfect OB Tracker 17+

Obstetrics wheel and tracker

Evan Schoenberg

Designed for iPad

    • 4.9 • 345 Ratings
    • $6.99



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

What’s New

Version 3.9

• Enhanced iCloud sync! Synchronization is now both more reliable and faster.
• Corrected a bug that could create duplicate entires.
• Fixed delivery date calculations in time zones near the international date line such as Australia and New Zealand.
•Various other fixes

Ratings and Reviews

4.9 out of 5
345 Ratings

345 Ratings

birthsister1 ,


I use every tool in this app. I love that it track not only the EDD but also the age of baby post birth. And the spot to record sex and name of baby is so helpful for tired midwife brains. I frequently use the calculator as well. My only request would be a way to share data with my assistants so that we don’t all have to enter the same clients. 🤞🏼💜

K. Marie. ,

Great for Midwives

As a CPM, I love using this app to track clients. Seeing their due dates, who is within delivery range, etc. Very helpful when a client texts to be able to quickly see their dates. Love the calculator features as well.

itislulu ,

Great app!

I use this app regularly and find it very useful.

Updates I would like to see that would make it more useful include:
- iCloud syncing so that I have access to all patient info on my iPad and my iPhone
- the ability to add a delivery date so the patients do not appear as post dates on my app. I would like to be able to keep track of them in the app for reporting purposes at the end of the year.

Developer Response ,

We’ve added both these requests! :)

App Privacy

The developer, Evan Schoenberg, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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