Perfect OB Wheel59.1 - App Store
You'll be able to see results in few seconds.
Publisher Description
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.
Version History • 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. 59.1 Aug 11 • 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 58 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 57 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 56 09/29/2021 • We now support all iOS devices and screen sizes
• Dark mode support with additional fixes in this version
• Text size accessibility support
• Miscellaneous improvements 54 09/20/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
•Dark mode support
•Text size accessibility support
• Miscellaneous improvements 53 09/12/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
• Miscellaneous improvements 52 09/12/2021 • Perfect OB Wheel now supports all iOS devices and screen sizes
• Miscellaneous improvements 51 09/10/2021 Further improvements to potential time zone issues, including one that led to the 'age at birth' display to be 1 day off sometimes. 50 09/16/2019 Fixed Tracker date handling for users in time zones with a positive GMT offset, where some calculations appeared to be 1 day off the actual result.
Added a 'Today' button to reset the date picker to today's date. 49 08/11/2019 • Fixed the Done vs. Edit button when viewing a tracked patient's information 48 05/28/2019 • Separated Due and Delivered patients into distinct lists
• We believe we fixed the bug affecting 'Delivered' status resetting in some cases. Please let us know if you have any further issues. 47 05/20/2019 • Fixed a bug when displaying the postpartum age.
•Fixed a crash on launch in the previous version affecting some users. 46 02/18/2019 [Tracker]
Fixed a bug when displaying the postpartum age. 45 02/17/2019 • Added an option to make the patient list text size smaller.
• Fixed a crash in iOS 10 when setting a patient to 'delivered' status. 44 02/10/2019 Fixed a crash when changing details on a patient to Delivered status.
Improved bug reporting facilities. 43 02/07/2019 • Added support for larger ("dynamic") text sizes
[Tracker Upgrade]
• Fixed sort order and statistics related to patients marked as delivered 42 02/04/2019 [Tracker Upgrade]
• Fixed visibility of the notes section while typing
• Fixed layout issues for patients marked as delivered when using an iPad in landscape orientation
• Fixed taking pictures to associate with patients 41 01/21/2019 • Postpartum tracking within the Perfect OB Tracker upgrade!
• Updated for iOS 12
• Updated for iPhone Xs and Xs Max 40 01/16/2019 Fixed a few minor bugs in iOS 8
[Tracker]
• Greatly improved iCloud synchronization reliability
• Fixed a crash when editing the last name of a patient while the list is sorted alphabetically
• Fixed display of the patient list when the default iOS font size has been increased in iOS 8 39 10/25/2014 [Tracker]
Fixed adding new patients on iPad. 38 10/08/2014 [Perfect OB Tracker Upgrade]
Fixed bugs and improved performance of the iCloud synchronization feature 37 09/18/2014 [Perfect OB Tracker]
Fixed a crash when syncing with iCloud on iOS 6 36 01/23/2014 [Perfect OB Tracker]
Fixed a crash when attempting to synchronize if not logged into iCloud. Apologies for those inconvenienced by this bug! 35 01/14/2014 [Perfect OB Tracker]
Added iCloud synchronization! 34 01/09/2014
About Perfect OB Wheel
The company that develops Perfect OB Wheel is Evan Schoenberg, M.D.. The latest version released by its developer is 59.1.
To install Perfect OB Wheel on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Perfect OB Wheel as malware if the download link is broken.
How to install Perfect OB Wheel on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Perfect OB Wheel is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Perfect OB Wheel is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 59.1
posted on 2026-10-15
Version History • 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. 59.1 Aug 11 • 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 58 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 57 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 56 09/29/2021 • We now support all iOS devices and screen sizes
• Dark mode support with additional fixes in this version
• Text size accessibility support
• Miscellaneous improvements 54 09/20/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
•Dark mode support
•Text size accessibility support
• Miscellaneous improvements 53 09/12/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
• Miscellaneous improvements 52 09/12/2021 • Perfect OB Wheel now supports all iOS devices and screen sizes
• Miscellaneous improvements 51 09/10/2021 Further improvements to potential time zone issues, including one that led to the 'age at birth' display to be 1 day off sometimes. 50 09/16/2019 Fixed Tracker date handling for users in time zones with a positive GMT offset, where some calculations appeared to be 1 day off the actual result.
Added a 'Today' button to reset the date picker to today's date. 49 08/11/2019 • Fixed the Done vs. Edit button when viewing a tracked patient's information 48 05/28/2019 • Separated Due and Delivered patients into distinct lists
• We believe we fixed the bug affecting 'Delivered' status resetting in some cases. Please let us know if you have any further issues. 47 05/20/2019 • Fixed a bug when displaying the postpartum age.
•Fixed a crash on launch in the previous version affecting some users. 46 02/18/2019 [Tracker]
Fixed a bug when displaying the postpartum age. 45 02/17/2019 • Added an option to make the patient list text size smaller.
• Fixed a crash in iOS 10 when setting a patient to 'delivered' status. 44 02/10/2019 Fixed a crash when changing details on a patient to Delivered status.
Improved bug reporting facilities. 43 02/07/2019 • Added support for larger ("dynamic") text sizes
[Tracker Upgrade]
• Fixed sort order and statistics related to patients marked as delivered 42 02/04/2019 [Tracker Upgrade]
• Fixed visibility of the notes section while typing
• Fixed layout issues for patients marked as delivered when using an iPad in landscape orientation
• Fixed taking pictures to associate with patients 41 01/21/2019 • Postpartum tracking within the Perfect OB Tracker upgrade!
• Updated for iOS 12
• Updated for iPhone Xs and Xs Max 40 01/16/2019 Fixed a few minor bugs in iOS 8
[Tracker]
• Greatly improved iCloud synchronization reliability
• Fixed a crash when editing the last name of a patient while the list is sorted alphabetically
• Fixed display of the patient list when the default iOS font size has been increased in iOS 8 39 10/25/2014 [Tracker]
Fixed adding new patients on iPad. 38 10/08/2014 [Perfect OB Tracker Upgrade]
Fixed bugs and improved performance of the iCloud synchronization feature 37 09/18/2014 [Perfect OB Tracker]
Fixed a crash when syncing with iCloud on iOS 6 36 01/23/2014 [Perfect OB Tracker]
Fixed a crash when attempting to synchronize if not logged into iCloud. Apologies for those inconvenienced by this bug! 35 01/14/2014 [Perfect OB Tracker]
Added iCloud synchronization! 34 01/09/2014
version 58
posted on 2026-07-24
Version History • 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 58 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 57 10/16/2021 Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably. 56 09/29/2021 • We now support all iOS devices and screen sizes
• Dark mode support with additional fixes in this version
• Text size accessibility support
• Miscellaneous improvements 54 09/20/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
•Dark mode support
•Text size accessibility support
• Miscellaneous improvements 53 09/12/2021 • Perfect OB Tracker now supports all iOS devices and screen sizes
• Miscellaneous improvements 52 09/12/2021 • Perfect OB Wheel now supports all iOS devices and screen sizes
• Miscellaneous improvements 51 09/10/2021 Further improvements to potential time zone issues, including one that led to the 'age at birth' display to be 1 day off sometimes. 50 09/16/2019 Fixed Tracker date handling for users in time zones with a positive GMT offset, where some calculations appeared to be 1 day off the actual result.
Added a 'Today' button to reset the date picker to today's date. 49 08/11/2019 • Fixed the Done vs. Edit button when viewing a tracked patient's information 48 05/28/2019 • Separated Due and Delivered patients into distinct lists
• We believe we fixed the bug affecting 'Delivered' status resetting in some cases. Please let us know if you have any further issues. 47 05/20/2019 • Fixed a bug when displaying the postpartum age.
•Fixed a crash on launch in the previous version affecting some users. 46 02/18/2019 [Tracker]
Fixed a bug when displaying the postpartum age. 45 02/17/2019 • Added an option to make the patient list text size smaller.
• Fixed a crash in iOS 10 when setting a patient to 'delivered' status. 44 02/10/2019 Fixed a crash when changing details on a patient to Delivered status.
Improved bug reporting facilities. 43 02/07/2019 • Added support for larger ("dynamic") text sizes
[Tracker Upgrade]
• Fixed sort order and statistics related to patients marked as delivered 42 02/04/2019 [Tracker Upgrade]
• Fixed visibility of the notes section while typing
• Fixed layout issues for patients marked as delivered when using an iPad in landscape orientation
• Fixed taking pictures to associate with patients 41 01/21/2019 • Postpartum tracking within the Perfect OB Tracker upgrade!
• Updated for iOS 12
• Updated for iPhone Xs and Xs Max 40 01/16/2019 Fixed a few minor bugs in iOS 8
[Tracker]
• Greatly improved iCloud synchronization reliability
• Fixed a crash when editing the last name of a patient while the list is sorted alphabetically
• Fixed display of the patient list when the default iOS font size has been increased in iOS 8 39 10/25/2014 [Tracker]
Fixed adding new patients on iPad. 38 10/08/2014 [Perfect OB Tracker Upgrade]
Fixed bugs and improved performance of the iCloud synchronization feature 37 09/18/2014 [Perfect OB Tracker]
Fixed a crash when syncing with iCloud on iOS 6 36 01/23/2014 [Perfect OB Tracker]
Fixed a crash when attempting to synchronize if not logged into iCloud. Apologies for those inconvenienced by this bug! 35 01/14/2014 [Perfect OB Tracker]
Added iCloud synchronization! 34 01/09/2014 [Tracker upgrade]
Fixed sort menu appearance on iOS 7. 33 09/27/2013
version 58
posted on 2021-10-16
• 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
version 58
posted on 2021-10-16
Oct 16, 2021
Version 58
• 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
version 58
posted on 2021-10-16
Oct 16, 2021 Version 58
• 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
version 56
posted on 2021-09-29
Sep 29, 2021 Version 56
Disabled iCloud Sync in this version as it was not working well; we will re-enable it once it is updated for iOS 15 and working reliably.
version 54
posted on 2021-09-20
Sep 20, 2021 Version 54
• We now support all iOS devices and screen sizes
• Dark mode support with additional fixes in this version
• Text size accessibility support
• Miscellaneous improvements
version 53
posted on 2021-09-12
Sep 12, 2021 Version 53
• Perfect OB Tracker now supports all iOS devices and screen sizes
•Dark mode support
•Text size accessibility support
• Miscellaneous improvements
version 50
posted on 2019-09-16
Sep 16, 2019 Version 50
Further improvements to potential time zone issues, including one that led to the 'age at birth' display to be 1 day off sometimes.
version 39
posted on 2008-10-16
Disclaimer
Official App Store Link
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