# Dr. Sapto ObstetriCalc — Obstetric & GA Calculator

> Obstetric & GA Calculator (iPhone/iPad app by Sapto Sutardi.)

- Source: https://appshunter.io/ios/app/dr-sapto-obstetricalc/id6789321261 (this page in markdown: same URL + `.md`)
- Developer: [Sapto Sutardi](https://appshunter.io/developer/6789321263)
- Category: Medical, Health & Fitness
- Price: Free
- Age rating: 17+
- Requires: iOS 13.0 · 20 MB
- Languages: American English
- Released: 2026-07-23
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/dr-sapto-obstetricalc/id6789321261/reviews.md

## What is Dr. Sapto ObstetriCalc?

An elegant, modern, and clinically precise bedside assistant for obstetricians, midwives, and healthcare professionals. Dr. Sapto ObstetriCalc simplifies gestational age dating and fetal growth evaluation with absolute visual clarity.

Key Features:
• 3 Dating Methods: Gestational age (GA) and Estimated Date of Delivery (EDD) calculated instantly via Last Menstrual Period (LMP), dating ultrasound, or direct gestational age entry.
• Fetal Weight Assessment (EFW): Evaluate estimated fetal weight against international growth standards to determine percentile rankings.
• Dual Growth Curves: Support for international Hadlock and INTERGROWTH-21st (WHO) standards to identify small (SGA), appropriate (AGA), and large for gestational age (LGA) fetuses.
• Discrepancy Detection: Intuitively highlights curve discrepancies between Hadlock and INTERGROWTH-21st to aid clinical decision-making.
• Symphysis-Fundal Height (SFH) Tool: Integrated Johnson-Toshach formula with fetal presentation and engagement adjustment.
• 100% Offline & Private: No internet connection or account required. Patient data remains strictly on your device.
• Adaptive Dark & Light Themes: Designed for seamless viewing in dimly lit ultrasound suites and bright clinics.

Streamline your antenatal workflow and enhance clinical documentation accuracy.


## Version history (last 5 releases)

### 1.0.6 — 2026-08-16

Added Fetal Weight (EFW) estimation from Symphysis-Fundal Height (TFU) using Johnson-Toshach formula, and percentile growth charts (Hadlock & Intergrowth).

### 1.0.5 — 2026-08-14

Initial release.

### 1.0.3 — 2026-08-12

Added Fetal Weight (EFW) estimation from Symphysis-Fundal Height (TFU) using Johnson-Toshach formula, and percentile growth charts (Hadlock & Intergrowth).

### 1.0.1 — 2026-07-26

UI improvements and screenshot updates.

### 1.0 — 2026-07-24

No release notes.

## More apps by Sapto Sutardi

- [Dr. Sapto Anthro](https://appshunter.io/ios/app/dr-sapto-anthro/id6791117295)
- [TimeLater: GPS Timestamp Photo](https://appshunter.io/ios/app/timelater-gps-timestamp-photo/id6794505485)

All apps by Sapto Sutardi: https://appshunter.io/developer/6789321263

## Related topics

[birth chart calculator](https://appshunter.io/ios/topics/birth-chart-calculator)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*