Comparison

Perfect OB Tracker vs ESW Resource for Midwives

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Perfect OB Tracker

This app provides a comprehensive pregnancy wheel and tracker for medical professionals. It allows for managing multiple patients, calculating due dates, tracking gestational age, and even monitoring postpartum information. The tool offers quick calculations and detailed fetal growth estimates.

Highlights
  • Patient management
  • Due date calculation
  • Gestational age tracking
  • Postpartum tracking
  • Quick calculator
  • Fetal growth estimates
  • HIPAA compliant passcode lock
Features
Currently charting
Read full description

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

About

ESW Resource for Midwives

Access comprehensive information for managing obstetric emergencies. This app provides step-by-step instructions, documentation guidance, and handy resources like videos and algorithms based on the Emergency Skills Workshop (ESW) program.

Highlights
  • Emergency management instructions
  • Documentation guidance
  • Instructional videos
  • Clinical skills how-to
  • Algorithms and tables
  • Pop-up information boxes
Features
Read full description

Enjoy quick and easy access to comprehensive information on managing obstetric emergencies with ESW Mobile App. Be well-prepared, confident and systematic in your approach to handling emergencies using this app that is based on the Emergency Skills Workshop (ESW) program developed by the Association of Ontario Midwives. Key Features: Emergency management instructions - Review easy to understand yet thorough step-by-step instructions regarding management of all 8 of the obstetric emergencies contained in the AOM ESW program. Considerations before, during and after emergencies are also included. Documentation guidance – Discover general documentation tips for emergencies as well as specific documentation guidance related to postpartum hemorrhage, abnormal fetal heart rate and shoulder dystocia. Access to handy resources – Have at your fingertips instructional videos, ‘how-to’ instructions for hands-on clinical skills, equipment lists, algorithms, tables, and helpful diagrams to aid in emergency management. Pop-up information boxes – Throughout the app, find helpful information boxes that further explain important points. ESW Mobile App is intended mostly for reference before and after emergencies, and for study purposes when preparing for certification/recertification in emergency skills. Although the app can be used during emergencies, the degree of detail contained in the management steps is better suited for review purposes. This app is intended for use in conjunction with the complete ESW manual. Users of this app are strongly encouraged to refer to the manual for thorough explanation of management steps, and for a comprehensive analysis of the related research along with full citations.

Screenshots

Perfect OB Tracker4 screens
ESW Resource for Midwives4 screens

Verdict

The call

The clearest difference is price: ESW Resource for Midwives at Free against Perfect OB Tracker's $6.99. ESW Resource for Midwives also leads on review sentiment (100% vs 74%). Perfect OB Tracker's advantage is update cadence (every 2 weeks vs every 8 months) and chart position (#174 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

ESW Resource for Midwives is free to download; Perfect OB Tracker costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Perfect OB Tracker ships an update every 2 weeks, ESW Resource for Midwives every 8 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 6 level
Perfect OB Tracker versus ESW Resource for Midwives: the parameters behind the verdict, then further details
ParameterPerfect OB TrackerESW Resource for Midwives
Price$6.99Free — better
Rating4.9 (413 ratings) — better—
Positive reviews74.1% of reviews100.0% of reviews — better
Number of ratings413 — better—
Update frequencyEvery 2 weeks — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#174 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size12 MB56 MB
Age rating17+17+
DeveloperEvan SchoenbergAssociation of Ontario Midwives

Customer experience

Perfect OB Tracker

All ratings408 ratings
Positive97.8%
Neutral1.0%
Negative1.2%
Written reviews54 reviews
Positive74.1%
Neutral5.6%
Negative20.4%

ESW Resource for Midwives

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Perfect OB Tracker

Reported bugs

9 issues
  • App just stopped working properly
  • App stopped working out of nowhere
  • Lost all records when changing phones
  • Syncing data to iPad is not working
  • Dates change erratically when toggling between patients
Show 4 more
  • App doesn't open on iOS 6
  • Update caused app to not open and lost all info
  • Won't sync to new iPhone
  • iCloud option not working better

Requested features

48 requests
  • Ability to share data with assistants
  • More options for writing notes
  • More customizable for practice
  • Way to share data with assistants
  • Export list to Word or Excel
Show 43 more
  • Ability to copy and paste data
  • List of patients due each month through the year
  • Android version of the app
  • Ability to sync with other users
  • Enter phone number and dial directly from the app
  • Add delivery date to prevent patients appearing as post dates
  • Ability to keep track of delivered patients for reporting
  • Identify primary vs. secondary midwife clients
  • Amend name, MRN, and photo after setup
  • Ability to sync up with other people
  • Link to phone's calendar for appointments
  • Option to mark patients as delivered and archive them
  • Add alarm for certain dates
  • Postpartum tracking
  • Enter phone number and relate to phone agenda
  • Ability to keep patient name after delivery for a few months
  • Delivery date and postpartum date counter
  • Sync with iPad through the cloud
  • More functionality for gestational age and patient data (infections, blood type)
  • iCloud communication between devices
  • More complicated password system
  • Add delivery date and track time since birth for postnatal care
  • Option to enter phone number and dial directly
  • Add delivery date so patients don't appear as post dates
  • Ability to keep track of delivered patients for reporting
  • More options for notes and customization
  • Identify primary vs. secondary midwife clients
  • Amend name, MRN, and photo after setup
  • Sync with other users
  • Android version
  • Export data
  • More detailed patient information fields (parity, delivery route, age, comorbidity, health plan)
  • Add alarm for specific dates
  • Postpartum tracking
  • Link appointments to phone calendar
  • Option to delete delivered patients
  • More complicated password system
  • Sync with iPad via iCloud
  • Ability to keep patient name after delivery for follow-up
  • Delivery date and postpartum date counter
  • Sync with iPad through the cloud
  • More detailed patient data fields
  • iCloud sync between devices

ESW Resource for Midwives

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Perfect OB Tracker

No in-app purchases

None

ESW Resource for Midwives

No in-app purchases

Questions

Is Perfect OB Tracker free?
Perfect OB Tracker costs $6.99, with no in-app purchases.
Is ESW Resource for Midwives free?
ESW Resource for Midwives is free to download, with no in-app purchases.
Do Perfect OB Tracker or ESW Resource for Midwives have ads?
Neither Perfect OB Tracker nor ESW Resource for Midwives shows ads.
Which is updated more often, Perfect OB Tracker or ESW Resource for Midwives?
Perfect OB Tracker ships an update every 2 weeks, and ESW Resource for Midwives every 8 months. Most recently, Perfect OB Tracker was updated on November 6, 2026 and ESW Resource for Midwives on November 3, 2026.

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