Obstetric Tools: OB Calculator
Pedro Iniesta Medical iPhoneiPadiPod touch
Obstetric Tools: OB Calculator is a free Medical app for iPhone and iPad by Pedro Iniesta. Rated 4.8/5 from 4 ratings. Requires iOS 15.1.
- Rating
- 4.8
- 4 ratings
- Price
- Free
- on the App Store
- Size
- 69 MB
- Age 17+
- Updated
- Oct 22
- 2026 · v3.0.0
Screenshots
About Obstetric Tools: OB Calculator
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/
What’s new
Version 3.0.0 · Updated October 22, 2026
3.0 brings more obstetric and neonatal tools, clearer explanations and tables, a redesigned introduction and Pro screen, and improvements for phones and tablets.
App privacy
The developer, Pedro Iniesta, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location: Coarse Location
- Identifiers: User ID, Device ID
- Usage Data: Product Interaction, Advertising Data
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Usage Data: Advertising Data, Product Interaction
Used for: Third-Party Advertising, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: User ID, Device ID
- Purchases: Purchase History
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
Used for: Third-Party Advertising, Analytics, App Functionality
Alternatives to Obstetric Tools: OB Calculator
Looking for apps like Obstetric Tools: OB Calculator? Here are 6 similar apps on the App Store. The highest rated is OB Calc (cloud) (5.0/5), and all 6 are free to download.
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OB Calc (cloud)
5.0
-
Obstetrical Calculator
-
Obstetrics Calculator
5.0
-
OB Tracker for Care Teams
4.7
-
MSD Manual Guide to Obstetrics
4.0
-
OB Wheel
4.3
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Obstetric Tools: OB Calculator | 4.8 / 5 (4 ratings) | Free | October 22, 2026 | |
| OB Calc (cloud) | 5.0 / 5 (5) | Free | Jul 21, 2026 | Compare |
| Obstetrical Calculator | – | Free | May 12, 2025 | Compare |
| Obstetrics Calculator | 5.0 / 5 (1) | Free | Jan 25, 2025 | Compare |
| OB Tracker for Care Teams | 4.7 / 5 (50) | Free | Oct 25, 2026 | Compare |
| MSD Manual Guide to Obstetrics | 4.0 / 5 (4) | Free | Jul 18, 2026 | Compare |
| OB Wheel | 4.3 / 5 (10) | Free | Jun 19, 2025 | Compare |