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About
This medical app helps obstetricians efficiently calculate key patient test date windows. It offers multiple calculation methods and allows for saving patient data and generating PDF reports. A free trial is available, followed by a subscription for full access.
✓LMP, EDC, Ultrasound, CRL, and IVF calculations
✓Customizable test date ranges
✓Cross-device data syncing
✓PDF report generation
✓Save individual patient data
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What's New in OB Calc (cloud)
2.10.1
July 21, 2026
Support for the latest Liquid Glass features
Subscription plans
Monthly Subscription
Access to premium features
$2.991 Month
User reviews
Developer apps
FAQ
What calculation methods does OB Calc offer?
OB Calc offers several calculation methods including Last Menstrual Period (LMP), Expected Delivery Date (EDC), Sonogram Date and Fetal Age (Sonogram), Crown Rump Length (CRL), and In Vitro Fertilization (IVF).
How long is the free trial for OB Calc?
OB Calc offers a free trial period of 7 days for users to try the app before committing to a subscription.
What are the subscription costs for OB Calc?
OB Calc offers a monthly subscription for $2.99 and an annual subscription for $29.99, providing access to premium features.
Can I save patient data with OB Calc?
Yes, a key premium feature of OB Calc is the ability to save individual patient data, which is accessible with a subscription.
Does OB Calc sync data across devices?
Yes, OB Calc features data syncing across multiple devices, ensuring your patient information is accessible wherever you are.
Can I generate reports with OB Calc?
OB Calc allows users to generate a PDF file, which can be useful for sharing patient calculations and data.
What devices is OB Calc compatible with?
OB Calc is available on Mac, iPhone, and iPad, making it accessible to a wide range of Apple users.
How often is OB Calc updated?
The latest version of OB Calc is 2.10.0, and it was last updated on February 23, 2026. This indicates a commitment to ongoing development and improvements.
