---
title: "Perfect OB Wheel - Reviews, Revenue and Downloads in Brazil | 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 — Brazil

![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/developer/evan-schoenberg-md-Euj) (United States)
**Category:** Medical
**Rating:** 4.9/5 (551 ratings)
**Price:** Free
**Bundle ID:** com.regularrateandrhythm.PerfectOBWheel
**Store:** Apple App Store
**Country:** Brazil
**Version:** 58 (released 2021-10-16)
**Original Release:** 2008-10-16
**Languages:** Arabic, English, French, Chinese, Italian, Japanese, Korean, Portuguese, Russian, Spanish, German

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

## 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 Brazil
- 5 stars: 508 (92%)
- 4 stars: 28 (5%)
- 3 stars: 3 (1%)
- 2 stars: 4 (1%)
- 1 stars: 8 (1%)

## Perfect OB Wheel Reviews in Brazil

### *---- "Duas cobranças"
O App para registro é necessário realizar um upgrade de R$27,90. Se a 1ª versão fosse gratuita ok, o problema que o que você paga por 10,00 é apenas para ver a data não pode deixar nada salvo. Para que serve então?
-- Thayvecchi, 2023-03-14

### **--- "Falta atualização para correção dos erros"
Preciso teclar com força nos números  do aplicativo para entrar os números. Isso acontece somente o aplicatico
-- Facioni, 2021-08-08

### ***** "Não consegui mexer no aplicativo!! Apenas calcular datas!!"
Por ser pago imaginei que tivesse mtas outras funções!!
-- colaco78, 2019-11-21

### ***-- "Dúvida"
Boa noite. Acabei de baixar o App. Esse salva as informações de idade gestacional de varias mulheres para se salvar como uma agenda ( ou profissional que trabalha na área) ou só a versão tracker ?
-- kelmjr, 2019-04-10

### ***** "Wrong EDC"
The EDC is being calculated in 41th week. It’s wrong EDC is on the 40th week. Please fix it!
-- obdoc9, 2019-02-19

### **--- "NÃO ESTÁ ABRINDO HÁ 2 dias"
Preciso de uma SOLUÇÃO urgente, estou sem informação de todas as minhas pacientes há 2 dias
-- Rê : ), 2019-02-19

### *---- "Bug após a última atualização"
O aplicativo eh ótimo. Mas deu bug depois da última atualização e não abre.
-- savilan, 2019-02-18

### *---- "Not working after last update!!!"
Don’t open on IOS 12.1.4 after last update on this Sunday!!!
-- hgeremia, 2019-02-18

### ***** "Ruim"
Parou de funcionar. Clica e nada acontece. Péssimo. Perdi minhas anotações
-- romnegr, 2019-02-18

### ***** "Ótimo App"
Organiza a vida de qualquer obstetra!! Recomendo a todos!
-- Ultramed12, 2019-02-02

### ***** "Practical and complete!"
I use it almost every day. Gives me all the information needed whit the press of a buton. The best app i found!
-- Victorleo, 2013-04-05

### ****- "Só falta suporte ao BRasil"
Pra ser 5 estrelas, falta apenas suporte ao português do Brasil
-- Vidademedico, 2013-03-16

### ***** "Bom"
Poderia ter espaço para comentários.
-- Fabricio GO, 2012-07-09

### ***** "Great app"
!!!!!!!
-- Tiago SP, 2012-04-23

### ***** "Bom"
Muito boa
-- Drmarbo, 2012-03-09

### ***** "Muito bom"
Perfeito
-- cpasamani, 2012-03-09

### ****- "Excelente"
Disco de papel nunca mais. Eh uma mão na roda! Vale a compra
-- Parteiro, 2012-02-26

### ***** "Ótimo!! Principalmente para plantões!!!"
Ótimo App!! Vale a pena comprar!!
-- FE&FER, 2012-02-18

### ****- "Muito bom para quem faz pré-natal!"
Bem completo, excelente para médicos que atuam em saúde de familia. Vale a compra!
-- Gi MD., 2012-02-11

### ***** "Rosso"
Vale a compra!
-- DrRosso, 2011-08-05

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

## Perfect OB Wheel In-App Purchases
| Item | Price |
|------|-------|
| Perfect OB Tracker | 29.90 R$ |

## Perfect OB Wheel Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Hong Kong SAR China | Medical | #1 |
| Top Paid | Indonesia | Medical | #7 |
| Top Paid | Dominican Republic | Medical | #17 |
| Top Paid | Argentina | Medical | #19 |
| Top Paid | Romania | Medical | #21 |
| Top Paid | Kuwait | Medical | #22 |
| Top Paid | Philippines | Medical | #23 |
| Top Grossing | Hong Kong SAR China | Medical | #24 |
| Top Paid | South Africa | Medical | #24 |
| Top Paid | New Zealand | Medical | #26 |
| Top Paid | Israel | Medical | #26 |
| Top Paid | Thailand | Medical | #26 |
| Top Paid | Chile | Medical | #27 |
| Top Paid | Germany | Medical | #28 |
| Top Paid | Canada | Medical | #29 |
| Top Paid | Lebanon | Medical | #29 |
| Top Paid | Greece | Medical | #30 |
| Top Paid | Hong Kong SAR China | Overall | #31 |
| Top Paid | Russia | Medical | #31 |
| Top Paid | Malaysia | Medical | #31 |
| Top Paid | Portugal | Medical | #33 |
| Top Paid | Brazil | Medical | #35 |
| Top Paid | Nigeria | Medical | #35 |
| Top Paid | Poland | Medical | #36 |
| Top Paid | Saudi Arabia | Medical | #38 |
| Top Paid | Italy | Medical | #38 |
| Top Paid | Pakistan | Medical | #40 |
| Top Paid | Peru | Medical | #44 |
| Top Paid | Türkiye | Medical | #45 |
| Top Paid | Egypt | Medical | #46 |
| Top Paid | Colombia | Medical | #46 |
| Top Paid | Ireland | Medical | #48 |
| Top Paid | United States | Medical | #50 |
| Top Paid | Ukraine | Medical | #52 |
| Top Paid | Mexico | Medical | #53 |
| Top Paid | Hungary | Medical | #59 |
| Top Grossing | Indonesia | Medical | #64 |
| Top Paid | United Arab Emirates | Medical | #70 |
| Top Paid | India | Medical | #70 |
| Top Paid | Spain | Medical | #74 |
| Top Paid | Vietnam | Medical | #78 |
| Top Paid | Australia | Medical | #90 |
| Top Paid | France | Medical | #99 |
| Top Paid | Denmark | Medical | #101 |
| Top Paid | United Kingdom | Medical | #104 |
| Top Paid | Singapore | Medical | #107 |
| Top Paid | Belgium | Medical | #120 |
| Top Paid | South Korea | Medical | #121 |
| Top Paid | Ecuador | Medical | #128 |
| Top Paid | Netherlands | Medical | #129 |
| Top Paid | Taiwan | Medical | #136 |
| Top Paid | Austria | Medical | #151 |
| Top Paid | Japan | Medical | #152 |
| Top Paid | Azerbaijan | Medical | #163 |
| Top Paid | Switzerland | Medical | #165 |
| Top Paid | China | Medical | #170 |
| Top Paid | Norway | Medical | #170 |
| Top Paid | Indonesia | Overall | #202 |
| Top Paid | Czechia | Medical | #207 |
| Top Paid | Sweden | Medical | #215 |
| Top Paid | Chile | Overall | #282 |
| Top Paid | Finland | Medical | #328 |
| Top Paid | Brazil | Overall | #339 |
| Top Paid | Canada | Overall | #348 |
| Top Paid | Dominican Republic | Overall | #414 |
| Top Paid | Philippines | Overall | #445 |

## Perfect OB Wheel Discovered Keywords
- perfect ob wheel

## Apps Similar to Perfect OB Wheel
- [ASCCP Management Guidelines](https://apptail.io/app/asccp-management-guidelines-sqH/brazil)
- [ACOG](https://apptail.io/app/acog-HZZ/brazil)
- [Well Woman Visit App by NPWH](https://apptail.io/app/well-woman-visit-app-by-npwh-zHsb/brazil)
- [Guide to Clinical Midwifery](https://apptail.io/app/guide-to-clinical-midwifery-iPcc/brazil)
- [MD on Call](https://apptail.io/app/md-on-call-ubGc/brazil)
- [Fetal Heart Rate 5-tier](https://apptail.io/app/fetal-heart-rate-5-tier-VuPd/brazil)
- [Simple Pregnancy Wheel](https://apptail.io/app/simple-pregnancy-wheel-ARPd/brazil)
- [Oral Contraceptives](https://apptail.io/app/oral-contraceptives-WYZd/brazil)
- [OB Wheel for Pregnancy](https://apptail.io/app/ob-wheel-for-pregnancy-vPZm/brazil)
- [Motion: Labor and Birth Tool](https://apptail.io/app/motion-labor-and-birth-tool-LJFp/brazil)

## Perfect OB Wheel Available In
- [United States](https://apptail.io/app/perfect-ob-wheel-KXZd/united-states)
- [Brazil](https://apptail.io/app/perfect-ob-wheel-KXZd/brazil)
- [Canada](https://apptail.io/app/perfect-ob-wheel-KXZd/canada)
- [Mexico](https://apptail.io/app/perfect-ob-wheel-KXZd/mexico)
- [Chile](https://apptail.io/app/perfect-ob-wheel-KXZd/chile)
- [Italy](https://apptail.io/app/perfect-ob-wheel-KXZd/italy)
- [Australia](https://apptail.io/app/perfect-ob-wheel-KXZd/australia)
- [United Kingdom](https://apptail.io/app/perfect-ob-wheel-KXZd/united-kingdom)
- [South Africa](https://apptail.io/app/perfect-ob-wheel-KXZd/south-africa)
- [Thailand](https://apptail.io/app/perfect-ob-wheel-KXZd/thailand)
- [Philippines](https://apptail.io/app/perfect-ob-wheel-KXZd/philippines)
- [Russia](https://apptail.io/app/perfect-ob-wheel-KXZd/russia)
- [Argentina](https://apptail.io/app/perfect-ob-wheel-KXZd/argentina)
- [Colombia](https://apptail.io/app/perfect-ob-wheel-KXZd/colombia)
- [New Zealand](https://apptail.io/app/perfect-ob-wheel-KXZd/new-zealand)
- [Saudi Arabia](https://apptail.io/app/perfect-ob-wheel-KXZd/saudi-arabia)
- [Türkiye](https://apptail.io/app/perfect-ob-wheel-KXZd/turkey)
- [Portugal](https://apptail.io/app/perfect-ob-wheel-KXZd/portugal)
- [Romania](https://apptail.io/app/perfect-ob-wheel-KXZd/romania)
- [Poland](https://apptail.io/app/perfect-ob-wheel-KXZd/poland)
- [Spain](https://apptail.io/app/perfect-ob-wheel-KXZd/spain)
- [India](https://apptail.io/app/perfect-ob-wheel-KXZd/india)
- [Ireland](https://apptail.io/app/perfect-ob-wheel-KXZd/ireland)
- [Greece](https://apptail.io/app/perfect-ob-wheel-KXZd/greece)
- [Israel](https://apptail.io/app/perfect-ob-wheel-KXZd/israel)
- [Switzerland](https://apptail.io/app/perfect-ob-wheel-KXZd/switzerland)
- [Indonesia](https://apptail.io/app/perfect-ob-wheel-KXZd/indonesia)
- [Dominican Republic](https://apptail.io/app/perfect-ob-wheel-KXZd/dominican-republic)
- [Japan](https://apptail.io/app/perfect-ob-wheel-KXZd/japan)
- [Malaysia](https://apptail.io/app/perfect-ob-wheel-KXZd/malaysia)
- [France](https://apptail.io/app/perfect-ob-wheel-KXZd/france)
- [Austria](https://apptail.io/app/perfect-ob-wheel-KXZd/austria)
- [Hong Kong SAR China](https://apptail.io/app/perfect-ob-wheel-KXZd/hong-kong)
- [Kuwait](https://apptail.io/app/perfect-ob-wheel-KXZd/kuwait)
- [Peru](https://apptail.io/app/perfect-ob-wheel-KXZd/peru)
- [Pakistan](https://apptail.io/app/perfect-ob-wheel-KXZd/pakistan)
- [Germany](https://apptail.io/app/perfect-ob-wheel-KXZd/germany)
- [Croatia](https://apptail.io/app/perfect-ob-wheel-KXZd/croatia)
- [Vietnam](https://apptail.io/app/perfect-ob-wheel-KXZd/vietnam)
- [Ecuador](https://apptail.io/app/perfect-ob-wheel-KXZd/ecuador)
- [Netherlands](https://apptail.io/app/perfect-ob-wheel-KXZd/netherlands)
- [Sweden](https://apptail.io/app/perfect-ob-wheel-KXZd/sweden)
- [Egypt](https://apptail.io/app/perfect-ob-wheel-KXZd/egypt)
- [Hungary](https://apptail.io/app/perfect-ob-wheel-KXZd/hungary)
- [Sri Lanka](https://apptail.io/app/perfect-ob-wheel-KXZd/sri-lanka)
- [Norway](https://apptail.io/app/perfect-ob-wheel-KXZd/norway)
- [Singapore](https://apptail.io/app/perfect-ob-wheel-KXZd/singapore)
- [Bulgaria](https://apptail.io/app/perfect-ob-wheel-KXZd/bulgaria)
- [Belgium](https://apptail.io/app/perfect-ob-wheel-KXZd/belgium)
- [Taiwan](https://apptail.io/app/perfect-ob-wheel-KXZd/taiwan)
- [Ukraine](https://apptail.io/app/perfect-ob-wheel-KXZd/ukraine)
- [Slovakia](https://apptail.io/app/perfect-ob-wheel-KXZd/slovakia)
- [Nigeria](https://apptail.io/app/perfect-ob-wheel-KXZd/nigeria)
- [Cayman Islands](https://apptail.io/app/perfect-ob-wheel-KXZd/cayman-islands)
- [Algeria](https://apptail.io/app/perfect-ob-wheel-KXZd/algeria)
- [Azerbaijan](https://apptail.io/app/perfect-ob-wheel-KXZd/azerbaijan)
- [Armenia](https://apptail.io/app/perfect-ob-wheel-KXZd/armenia)
- [Denmark](https://apptail.io/app/perfect-ob-wheel-KXZd/denmark)
- [Latvia](https://apptail.io/app/perfect-ob-wheel-KXZd/latvia)
- [Belarus](https://apptail.io/app/perfect-ob-wheel-KXZd/belarus)
- [Bahrain](https://apptail.io/app/perfect-ob-wheel-KXZd/bahrain)
- [Lebanon](https://apptail.io/app/perfect-ob-wheel-KXZd/lebanon)
- [Slovenia](https://apptail.io/app/perfect-ob-wheel-KXZd/slovenia)

---

## About AppTail

[AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends.

- [Search Apps](https://apptail.io)
- [Top Charts](https://apptail.io/top-iphone-apps)
- [Sign Up for Full Access](https://apptail.io/account/signup?utm_campaign=ai-crawl&utm_content=footer)

*Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*