Comparison

Obstetric Tools vs IGCalcPT

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

Head to head
About

Obstetric Tools

This clinical toolkit provides obstetricians and midwives with a precise, fast, and comprehensive pregnancy wheel and calculator. It offers evidence-based results for optimizing patient care, even offline, and includes various essential medical tests and scales.

Highlights
  • Advanced Gestogram (Pregnancy Wheel)
  • Estimated Due Date (EDD) & Gestational Age (GA) calculation
  • Estimated Fetal Weight (EFW) calculator
  • Maternal BMI & Weight Gain tracker
  • Bishop Score, Apgar Score, and other clinical scales
  • 100% Offline Functionality
  • Evidence-based clinical information
Features
Read full description

Keep obstetric and neonatal reference tools together, from pregnancy dating to newborn assessment. Obstetric Tools is designed for midwives, obstetricians and other healthcare professionals. PREGNANCY AND MATERNAL CARE Use the pregnancy wheel to calculate gestational age and estimated due date. Explore IVF dating, estimated fetal weight with Hadlock IV, BMI and pregnancy weight gain, serial beta-hCG change, amniotic fluid assessment, twin weight discordance, mean arterial pressure and blood loss calculations. NEWBORN CARE AND CLINICAL SCALES Find Apgar, Bishop, Silverman-Andersen, Edinburgh, PUQE-24, LATCH and other reference scales. Calculate corrected age and newborn weight change. Search the tool catalog and open explanations, reference tables and sources from each tool. FREE TOOLS AND OPTIONAL PRO Use the available free tools or choose an individual monthly or annual auto-renewing Pro subscription for all Pro tools and an ad-free experience. The store shows the price and billing period before purchase. Manage or cancel renewal in your store settings. No app account is required. PRIVACY AND CLINICAL USE Clinical calculations run on your device. Technical usage, purchase and diagnostic data are described in the privacy policy; clinical inputs are not included in analytics events. For professional information and education. This app is not a medical device and does not diagnose, prescribe or replace clinical judgement. Check results against the clinical context, original references and your local protocols. Privacy: https://milkynest.com/privacy/ EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

IGCalcPT

Features
Read full description

IGCalcPt is a precise gestational age and fetal weight percentile calculator for healthcare professionals, built around growth charts specific to the Portuguese population and recommended by the Portuguese Society of Maternal-Fetal Medicine. KEY FEATURES Accurate gestational age calculation: • Multiple methods: LMP, conception date, embryo transfer (day 2–5), estimated due date • Automatic conversion between dates and gestational ages • Interactive calculator for any date • Before a patient's dating is changed, shows today's GA by the stored dating and by the new one • Correct handling of time zones and leap years Portuguese fetal percentiles: • Growth charts validated for the Portuguese population • Percentiles by sex (male, female, both), with one decimal below P10 and above P90 • Twins and triplets: each fetus with its own reference table, and weight discordance flagged from 20% • Interactive fetal growth charts with zoom • Visual comparison with previous measurements Patient management: • Profiles with clinical notes • Full measurement and percentile history; saved weights can be corrected • Saved weights follow a corrected dating and the fetal sex • Close a pregnancy and start the next one on the same record • Undo after deleting a patient, a weight or a pregnancy • Quick search by name or ID • JSON backup and restore • PDF report with chart and measurements, dated, with the GA on the day Specialised calculators: • CRL (crown-rump length): GA at 5–14 weeks (Robinson & Fleming) • Fetal biometry: estimated weight by Hadlock (BPD, HC, AC, FL) • Automatic integration between calculators Accessibility and privacy: • Dark mode and a dedicated high-visibility mode • Interface in Portuguese, English and French • Fully offline: data are stored on the device and are not sent to the developer • The device's own backup may include the data • No ads, no tracking, no data collection SCIENTIFIC BASIS Based on the doctoral research of Dr. Ricardo Santos using Portuguese population data: Sousa-Santos RF, Miguelote RF, Cruz-Correia RJ, Santos CC, Bernardes JFMAL. Development of a birthweight standard and comparison with currently used standards. Eur J Obstet Gynecol Reprod Biol 2016;206:184-193. WHO IS IT FOR Obstetricians, gynaecologists, maternal-fetal medicine specialists, sonographers, specialised nurses and residents. MEDICAL DISCLAIMER This application is intended for qualified healthcare professionals. Calculators and percentiles are decision-support tools and do not replace clinical judgement.

Screenshots

Obstetric Tools4 screens
IGCalcPT4 screens

Verdict

The call

The clearest difference is in-app purchases: IGCalcPT at none against Obstetric Tools's 4. IGCalcPT also leads on ads (none vs shown). Obstetric Tools's advantage is update cadence (every 3 weeks vs every 2 months). On price, 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

Both are free to download. Obstetric Tools sells 4 in-app purchases, starting at $1.99 per month. IGCalcPT asks for nothing beyond the download.

UpkeepUpdate frequency

Obstetric Tools ships an update every 3 weeks, IGCalcPT every 2 months. Both last shipped on October 30, 2026.

Scorecard3 real differences · 6 level
Obstetric Tools versus IGCalcPT: the parameters behind the verdict, then further details
ParameterObstetric ToolsIGCalcPT
PriceFreeFree
Rating4.8 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size69 MB31 MB
Age rating17+17+
DeveloperPedro IniestaOBGYNART - OBSTETRICIA, GINECOLOGIA E MEDICINA DA REPRODUCAO, LDA

In-app purchases

4 purchases

Obstetric Tools

Subscriptions4
  • Premium Monthly7 Days trial$1.991 Month
  • Obstetric Tools Pro Monthly$3.991 Month
  • Premium Annual7 Days trial$4.991 Year
Show 1 more
  • Obstetric Tools Pro Annual$24.991 Year
None

IGCalcPT

No in-app purchases

Questions

Is Obstetric Tools free?
Obstetric Tools is free to download, with in-app purchases available.
Is IGCalcPT free?
IGCalcPT is free to download, with no in-app purchases.
Do Obstetric Tools or IGCalcPT have ads?
Obstetric Tools shows ads; IGCalcPT does not.
Which is updated more often, Obstetric Tools or IGCalcPT?
Obstetric Tools ships an update every 3 weeks, and IGCalcPT every 2 months. Most recently, Obstetric Tools was updated on October 30, 2026 and IGCalcPT on October 30, 2026.

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