Perfect OB Wheel
Evan Schoenberg Medical iPhoneiPadiPod touch
Perfect OB Wheel is a paid Medical app for iPhone and iPad by Evan Schoenberg. Rated 4.9/5 from 3,596 ratings. Requires iOS 13.0. Updated August 11, 2026.
- Rating
- 4.9
- 3.5K ratings
- Price
- 1.99 USD
- on the App Store
- Size
- 14 MB
- Age 17+
- Updated
- Aug 11
- 2026 · v59.1
Screenshots
About Perfect OB Wheel
Simple, fast, yet more thorough than any other pregnancy wheel available for the iPhone, Perfect OB Wheel is better than just a replacement for your trusty paper wheel. Here's why Perfect OB Wheel is your best choice of gestational calculator: 1) Input flexibility: 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"). 2) Input speed: Other wheels for the iPhone make you conform to them for entering your patient's information. Why not be able to choose based on how you are holding the phone and what else you are doing at the same time? • Use the numeric entry pad (0 3 3 0 2 0 0 8) and immediately see the results, OR • Spin the date wheel at the bottom of the screen and tap Next. 3) 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. 4) Accurate results: Perfect OB Wheel provides exact dates and accounts for all calendar variance, including leap years. 5) Persistence: Perfect OB Wheel remembers the date and date type you last used and restores them when launched to streamline your workflow. 6) Perfect OB Tracker upgrade: Available as an in-app purchase update, the Perfect OB Tracker lets you track any number of pregnancies, with at-a-glance due date and gestational age and one-tap access to all the data Perfect OB Wheel provides. A picture and text notes can be kept on each patient. Postpartum tracking is also available. Passcode locking is available for HIPAA compliance.
Ratings & reviews
4.9
3.5K ratings
What’s new
Version 59.1 · Updated August 11, 2026
• Fixed a crash at launch on iPads running iOS 26. • New in Settings: Back Up All Data — export a complete copy of your patient database and photos. • The app now keeps automatic local snapshots of your database for extra data safety.
App privacy
The developer, Evan Schoenberg, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality
Alternatives to Perfect OB Wheel
Looking for apps like Perfect OB Wheel? Here are 6 similar apps on the App Store. The highest rated is Well Woman Visit App by NPWH (5.0/5), and 4 of the 6 are free to download.
-
Well Woman Visit App by NPWH
5.0
-
OB Wheel for Pregnancy
4.7
-
ACOG
4.9
-
Guide to Clinical Midwifery
4.6
-
ASCCP Management Guidelines
4.8
-
Oral Contraceptives
4.4
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Perfect OB Wheel | 4.9 / 5 (3,596 ratings) | 1.99 USD | August 11, 2026 | |
| Well Woman Visit App by NPWH | 5.0 / 5 (4) | Free | Jun 19, 2026 | Compare |
| OB Wheel for Pregnancy | 4.7 / 5 (39) | Free | Jan 21, 2024 | Compare |
| ACOG | 4.9 / 5 (6,334) | Free | May 14, 2026 | Compare |
| Guide to Clinical Midwifery | 4.6 / 5 (89) | Free | Sep 18, 2025 | Compare |
| ASCCP Management Guidelines | 4.8 / 5 (8,728) | 14.99 USD | Jul 15, 2026 | Compare |
| Oral Contraceptives | 4.4 / 5 (5) | 7.99 USD | May 27, 2025 | Compare |
Compare Perfect OB Wheel with the top alternatives: ratings, updates, ASO score and keyword gaps →