Obstetric Tools vs IGCalcPT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
IGCalcPT
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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
Verdict
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
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.
Obstetric Tools ships an update every 3 weeks, IGCalcPT every 2 months. Both last shipped on October 30, 2026.
| Parameter | Obstetric Tools | IGCalcPT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 69 MB | 31 MB |
| Age rating | 17+ | 17+ |
| Developer | Pedro Iniesta | OBGYNART - OBSTETRICIA, GINECOLOGIA E MEDICINA DA REPRODUCAO, LDA |
In-app purchases
Obstetric Tools
- Premium Monthly7 Days trial$1.991 Month
- Obstetric Tools Pro Monthly$3.991 Month
- Premium Annual7 Days trial$4.991 Year
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- Obstetric Tools Pro Annual$24.991 Year
IGCalcPT
No in-app purchases
Questions
Is Obstetric Tools free?
Is IGCalcPT free?
Do Obstetric Tools or IGCalcPT have ads?
Which is updated more often, Obstetric Tools or IGCalcPT?
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