AppMarketSpy › Medical › OB Datum: Pregnancy Dating
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App info
- Developer
- VLR Software
- Category
- Medical, Health & Fitness
- Released
- Sep 2, 2026
- Version
- 1.1 (Sep 15, 2026)
- Price
- $1.99
- Size
- 8.5 MB
- Requires
- iOS 26.0
- Age rating
- 16+
- Languages
- English and Spanish
In-app purchases
| OB Datum Lifetime Pro | $1.99 |
Current prices, App Store US.
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About OB Datum: Pregnancy Dating
Calculate and compare pregnancy dates with a clear explanation of every result. OB Datum is a clinician-first pregnancy-dating workspace for iPhone and iPad. It performs deterministic calendar arithmetic and shows the source, formula, equivalent dates, and calculation-engine version for review. CALCULATE FROM • First day of the last menstrual period, with optional regular-cycle adjustment • Documented conception or ovulation date • An established estimated due date • Gestational age documented on a known date • IVF embryo-transfer date and documented embryo age EVERY FEATURE INCLUDED Every dating method, read-only Health import, full dating reconciliation, unlimited anonymous saved cases, formatted sharing, Calendar export, and custom timeline milestones are included in the downloaded app. There is no subscription, advertising, or separate feature purchase. In Reconcile, keep an…
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