---
title: "Perfect OB Wheel - Bewertungen, Einnahmen und Downloads in Vereinigte Staaten | Apple App Store"
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"
---

# Perfect OB Wheel — Vereinigte Staaten
> Obstetrics calculator

![Perfect OB Wheel App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple115/v4/41/2b/2f/412b2f1c-70c6-4628-2aa8-815bc5602988/AppIcon-0-1x_U007emarketing-0-6-0-85-220.png/434x0w.png)

**Developer:** [Evan Schoenberg, M.D](https://apptail.io/de/developer/evan-schoenberg-md-Euj) (Vereinigte Staaten)
**Category:** Medical
**Rating:** 4.9/5 (3,527 ratings)
**Price:** Free
**Bundle ID:** com.regularrateandrhythm.PerfectOBWheel
**Store:** Apple App Store
**Country:** Vereinigte Staaten
**Version:** 58 (released 2021-10-16)
**Original Release:** 2008-10-16
**Languages:** English, Arabic, French, German, Italian, Japanese, Korean, Portuguese, Russian, Chinese, Spanish

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id293656711)
**AppTail Page:** [https://apptail.io/de/app/perfect-ob-wheel-KXZd/united-states](https://apptail.io/de/app/perfect-ob-wheel-KXZd/united-states)

## Perfect OB Wheel 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.

## Perfect OB Wheel Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/46/02/1a/46021a3d-419f-d1ea-90a9-68d64405a0b5/cc25da01-1c8a-4703-b936-9594577fb77d_1_iphone65_1.1-LMP.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/f6/7e/b4/f67eb486-512d-d3e1-0153-e72de24f4c0c/761f0f3b-8cba-49e4-86f0-40853eb998fe_2_iphone65_2.2-LMP_Results.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource125/v4/3b/71/10/3b711093-d160-a4b1-2c20-310651ab34b9/68986376-1042-4c8b-89d9-d2862d181c70_3_iphone65_3.3-As_of_Date_Results.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource115/v4/0a/65/50/0a6550c3-91ad-4c67-363e-5e43e426ae7d/3adc7b2f-1e7f-41a9-9b0e-0a4b9a817c7b_4_iphone65_4.4-X_Weeks.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple125/v4/c0/ab/27/c0ab27d1-2ed1-b6cc-afeb-64e3fe530fe9/pr_source.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple125/v4/ef/51/1b/ef511bd8-cadd-ea1a-cbeb-c4f3d6fd0474/pr_source.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple115/v4/b3/0b/c8/b30bc894-f951-322d-d95b-bbc874c12e67/pr_source.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple115/v4/36/2a/d7/362ad78b-fec4-2e12-8aec-9f07bc10242e/pr_source.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple115/v4/58/9f/06/589f0651-e1d0-38c4-dec4-51db7760c6e9/pr_source.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/Purple125/v4/06/2d/da/062dda6f-8eab-35b3-269d-93a9aaac88ef/pr_source.png/1242x2688.png)

## Perfect OB Wheel Rating Breakdown in Vereinigte Staaten
- 5 stars: 3,319 (94%)
- 4 stars: 165 (5%)
- 3 stars: 19 (1%)
- 2 stars: 9 (0%)
- 1 stars: 15 (0%)

## Perfect OB Wheel Reviews in Vereinigte Staaten

### ***** "Extremely helpful"
I am a nurse in a prenatal clinic and use this multiple times a day. So convenient having everything in one place whether you start with last menstrual period, estimated due date or gestational age, It all works quickly and flawlessly.
-- MizIrene, 2024-08-23

### ***** "OB doctor"
Couldn’t do my job without this app.
-- Dr Val Stephens, 2022-11-08

### ***** "Review"
Perfect wheel is well-named. Dr. Dave
-- Frustrated finding nickname:(, 2021-12-29

### *---- "rip off to force you to pay more"
they make a sound as if the $1.99 you pay is going to open up the advanced options only to find out that once you pay the money and use the app that you will need to pay an additional 4.99 for the full features described. The basic features that you get for the $1.99 are free from many websites and several other free apps that actually include the ability to save your due date etc. don’t waste your money if you want the simple information provided in the $1.99 app get it free from the American College of obstetrics and gynecology app or many others. Shame on you.
I just added an edit here because I found out that the American College of obstetrics and gynecology disagrees with the dating criteria utilized here and the trimester dating is off. So not only are you paying 1.99 you’re actually getting the wrong information.
by the way I am a board-certified OB/GYN
-- Docmalan, 2021-11-27

### ***** "I love this app!"
I’m and ER doc and I use this app all time. It has everything I need and nothing I don’t. I love it!
-- maggetyhatch, 2021-02-19

### ***** "Perfect app"
Great app !! I use it all the time.  Very practical and accurate. 
Highly recommend it ! 

R Bribiesca, NP
-- Rosy NP, 2020-12-29

### ***** "Best OB wheel I’ve found"
I’m an MFM who uses this wheel several times a day. Easily the fastest way and most flexible app I’ve used.
-- rnvdAgonfe!74. !(:4&, 2020-11-13

### ***** "Very Helpful"
This app fills in the gaps for me ALL the time. Can’t live without it
-- Heather Richmond, 2020-07-20

### ***** "Great app, some suggestions"
Excellent app. Love it. Would love if there are more fields for infant info, apgars and weight.
-- Mom from the VI, 2020-05-01

### ****- "Nice OB wheel app"
This app is quite useful. I like that you can save clients’ information and that the developer implemented a suggestion about highlighting today’s date. One problem I face is that you are not able to adjust cycle length. Most of the women I care for do not have 28day cycles. This can drastically change EDD. In order to take their cycle length into account I have to fudge LMP. I dislike having different dates for LMP in this app compared to their chart.
-- gingamohawk, 2020-04-09

### ***** "Love"
Love this app! As a L&D RN for many years, this app gives me a quick and accurate info!
-- Nurse Olga, 2019-10-14

### ****- "ACOG"
I LOVE this app. However, I do believe that the dating for the trimesters is off. I’m only ever interested in the end of the first trimester and ACOG states that the first trimester ends at 13weeks 6days. This app does not calculate accordingly. Can you please look into this and make a correction if there is a consensus?
-- Sharfitz, 2019-05-24

### ***** "On wheel"
It is the best and I have been doing this for since 1980🧐
-- The OB Kid, 2019-02-19

### *---- "Stopped working after update 45"
When I tape the app it opens then immediately closes.
-- J4L4N, 2019-02-17

### ***** "Help!"
Love the “delivered “ tracking ability, but the latest update is crashing when I try to use it. Please fix. The app is a lifesaver for me!
-- gleemarous, 2019-02-05

### ***** "Font"
I liked it better with the larger font-- the new smaller font is hard for my old eyes :)
-- Nateisgraet, 2019-02-04

### ***** "The best tool"
I have been a OB nurse for 10 years and this is my go to for all my dates LMP and more!!
-- shonRN, 2019-01-28

### ***** "Showed to my OB who loved it"
My OB was using this paper wheel thing. I showed her this app and she loved it.
-- Mellie from the Block, 2019-01-20

### ***** "Use it all the time!"
OB nurse for 12 years. Love it!
-- Jjclines, 2016-11-14

### ***** "CNM"
I am a Nurse Midwife and I use this app all the time. I love that you can calculate anything you need to know about dating and GA from whatever piece of info you have. I can't think of anything that I have needed to calculate that I couldn't do with this app. It is especially helpful in decoding some US reports that do not have all of the information spelled out for me in simple dating terms with EDD and GA.
-- Katie C CNM, 2016-02-12

[View all Perfect OB Wheel reviews and detailed analytics on AppTail](https://apptail.io/de/account/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Perfect OB Wheel In-App Purchases
| Item | Price |
|------|-------|
| Perfect OB Tracker | $4.99 |

## Perfect OB Wheel Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Bezahlt | Thailand | Medical | #5 |
| Top Bezahlt | Italien | Medical | #9 |
| Top Bezahlt | Argentinien | Medical | #15 |
| Top Bezahlt | Dominikanische Republik | Medical | #16 |
| Top Bezahlt | Mexiko | Medical | #18 |
| Top Bezahlt | Südafrika | Medical | #22 |
| Top Bezahlt | Australien | Medical | #22 |
| Top Bezahlt | Rumänien | Medical | #22 |
| Top Bezahlt | Kuwait | Medical | #23 |
| Top Bezahlt | Israel | Medical | #25 |
| Top Bezahlt | Chile | Medical | #25 |
| Top Bezahlt | Philippinen | Medical | #25 |
| Top Bezahlt | Griechenland | Medical | #28 |
| Top Bezahlt | Portugal | Medical | #28 |
| Top Bezahlt | Libanon | Medical | #29 |
| Top Bezahlt | Neuseeland | Medical | #29 |
| Top Bezahlt | Russland | Medical | #30 |
| Top Bezahlt | Malaysia | Medical | #32 |
| Top Bezahlt | Indonesien | Medical | #35 |
| Top Bezahlt | Kolumbien | Medical | #36 |
| Top Bezahlt | Polen | Medical | #36 |
| Top Bezahlt | Nigeria | Medical | #36 |
| Top Bezahlt | Saudi-Arabien | Medical | #38 |
| Top Bezahlt | Pakistan | Medical | #42 |
| Top Bezahlt | Sonderverwaltungsregion Hongkong | Medical | #44 |
| Top Bezahlt | Peru | Medical | #44 |
| Top Bezahlt | Brasilien | Medical | #45 |
| Top Bezahlt | Kanada | Medical | #48 |
| Top Bezahlt | Ägypten | Medical | #48 |
| Top Bezahlt | Türkei | Medical | #49 |
| Top Bezahlt | Irland | Medical | #53 |
| Top Bezahlt | Ukraine | Medical | #57 |
| Top Bezahlt | Ungarn | Medical | #58 |
| Top Umsatz | Thailand | Medical | #61 |
| Top Bezahlt | Indien | Medical | #65 |
| Top Bezahlt | Vereinigte Arabische Emirate | Medical | #73 |
| Top Bezahlt | Vietnam | Medical | #75 |
| Top Bezahlt | Spanien | Medical | #76 |
| Top Bezahlt | Vereinigte Staaten | Medical | #77 |
| Top Umsatz | Kolumbien | Medical | #92 |
| Top Bezahlt | Frankreich | Medical | #99 |
| Top Bezahlt | Singapur | Medical | #108 |
| Top Bezahlt | Dänemark | Medical | #109 |
| Top Bezahlt | Vereinigtes Königreich | Medical | #110 |
| Top Bezahlt | Südkorea | Medical | #116 |
| Top Bezahlt | Belgien | Medical | #119 |
| Top Bezahlt | Ecuador | Medical | #127 |
| Top Bezahlt | Niederlande | Medical | #132 |
| Top Bezahlt | Taiwan | Medical | #134 |
| Top Bezahlt | Japan | Medical | #146 |
| Top Bezahlt | Österreich | Medical | #151 |
| Top Bezahlt | Italien | Overall | #156 |
| Top Bezahlt | Thailand | Overall | #158 |
| Top Bezahlt | Aserbaidschan | Medical | #163 |
| Top Bezahlt | China | Medical | #166 |
| Top Bezahlt | Schweiz | Medical | #166 |
| Top Bezahlt | Norwegen | Medical | #168 |
| Top Bezahlt | Tschechien | Medical | #209 |
| Top Bezahlt | Deutschland | Medical | #220 |
| Top Bezahlt | Schweden | Medical | #220 |
| Top Bezahlt | Chile | Overall | #276 |
| Top Bezahlt | Mexiko | Overall | #291 |
| Top Bezahlt | Finnland | Medical | #327 |
| Top Bezahlt | Dominikanische Republik | Overall | #409 |
| Top Bezahlt | Australien | Overall | #435 |
| Top Bezahlt | Philippinen | Overall | #451 |

## Perfect OB Wheel Discovered Keywords
- perfect ob wheel

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## Perfect OB Wheel Available In
- [Vereinigte Staaten](https://apptail.io/de/app/perfect-ob-wheel-KXZd/united-states)
- [Brasilien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/brazil)
- [Kanada](https://apptail.io/de/app/perfect-ob-wheel-KXZd/canada)
- [Mexiko](https://apptail.io/de/app/perfect-ob-wheel-KXZd/mexico)
- [Chile](https://apptail.io/de/app/perfect-ob-wheel-KXZd/chile)
- [Italien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/italy)
- [Australien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/australia)
- [Vereinigtes Königreich](https://apptail.io/de/app/perfect-ob-wheel-KXZd/united-kingdom)
- [Südafrika](https://apptail.io/de/app/perfect-ob-wheel-KXZd/south-africa)
- [Thailand](https://apptail.io/de/app/perfect-ob-wheel-KXZd/thailand)
- [Philippinen](https://apptail.io/de/app/perfect-ob-wheel-KXZd/philippines)
- [Russland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/russia)
- [Argentinien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/argentina)
- [Kolumbien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/colombia)
- [Neuseeland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/new-zealand)
- [Saudi-Arabien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/saudi-arabia)
- [Türkei](https://apptail.io/de/app/perfect-ob-wheel-KXZd/turkey)
- [Portugal](https://apptail.io/de/app/perfect-ob-wheel-KXZd/portugal)
- [Rumänien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/romania)
- [Polen](https://apptail.io/de/app/perfect-ob-wheel-KXZd/poland)
- [Spanien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/spain)
- [Indien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/india)
- [Irland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/ireland)
- [Griechenland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/greece)
- [Israel](https://apptail.io/de/app/perfect-ob-wheel-KXZd/israel)
- [Schweiz](https://apptail.io/de/app/perfect-ob-wheel-KXZd/switzerland)
- [Indonesien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/indonesia)
- [Frankreich](https://apptail.io/de/app/perfect-ob-wheel-KXZd/france)
- [Malaysia](https://apptail.io/de/app/perfect-ob-wheel-KXZd/malaysia)
- [Dominikanische Republik](https://apptail.io/de/app/perfect-ob-wheel-KXZd/dominican-republic)
- [Japan](https://apptail.io/de/app/perfect-ob-wheel-KXZd/japan)
- [Kuwait](https://apptail.io/de/app/perfect-ob-wheel-KXZd/kuwait)
- [Österreich](https://apptail.io/de/app/perfect-ob-wheel-KXZd/austria)
- [Sonderverwaltungsregion Hongkong](https://apptail.io/de/app/perfect-ob-wheel-KXZd/hong-kong)
- [Peru](https://apptail.io/de/app/perfect-ob-wheel-KXZd/peru)
- [Ecuador](https://apptail.io/de/app/perfect-ob-wheel-KXZd/ecuador)
- [Pakistan](https://apptail.io/de/app/perfect-ob-wheel-KXZd/pakistan)
- [Deutschland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/germany)
- [Kroatien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/croatia)
- [Vietnam](https://apptail.io/de/app/perfect-ob-wheel-KXZd/vietnam)
- [Niederlande](https://apptail.io/de/app/perfect-ob-wheel-KXZd/netherlands)
- [Schweden](https://apptail.io/de/app/perfect-ob-wheel-KXZd/sweden)
- [Ägypten](https://apptail.io/de/app/perfect-ob-wheel-KXZd/egypt)
- [Ungarn](https://apptail.io/de/app/perfect-ob-wheel-KXZd/hungary)
- [Sri Lanka](https://apptail.io/de/app/perfect-ob-wheel-KXZd/sri-lanka)
- [Norwegen](https://apptail.io/de/app/perfect-ob-wheel-KXZd/norway)
- [Singapur](https://apptail.io/de/app/perfect-ob-wheel-KXZd/singapore)
- [Bulgarien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/bulgaria)
- [Belgien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/belgium)
- [Taiwan](https://apptail.io/de/app/perfect-ob-wheel-KXZd/taiwan)
- [Ukraine](https://apptail.io/de/app/perfect-ob-wheel-KXZd/ukraine)
- [Slowakei](https://apptail.io/de/app/perfect-ob-wheel-KXZd/slovakia)
- [Nigeria](https://apptail.io/de/app/perfect-ob-wheel-KXZd/nigeria)
- [Kaimaninseln](https://apptail.io/de/app/perfect-ob-wheel-KXZd/cayman-islands)
- [Algerien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/algeria)
- [Aserbaidschan](https://apptail.io/de/app/perfect-ob-wheel-KXZd/azerbaijan)
- [Armenien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/armenia)
- [Dänemark](https://apptail.io/de/app/perfect-ob-wheel-KXZd/denmark)
- [Lettland](https://apptail.io/de/app/perfect-ob-wheel-KXZd/latvia)
- [Belarus](https://apptail.io/de/app/perfect-ob-wheel-KXZd/belarus)
- [Bahrain](https://apptail.io/de/app/perfect-ob-wheel-KXZd/bahrain)
- [Libanon](https://apptail.io/de/app/perfect-ob-wheel-KXZd/lebanon)
- [Slowenien](https://apptail.io/de/app/perfect-ob-wheel-KXZd/slovenia)

---

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