Adhuna vs DrObsCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Adhuna
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Calculate IV FCM dosage and GA; run a timed 60-minute checklist for vaginal & C-section birth. This application brings together three essential tools in one easy‑to‑use platform: - IV FCM Dosage Calculator – Estimate iron need and calculate ferric carboxymaltose dosage (vials/sessions) to ensure quick and accurate treatment. - Gestational Age Calculator – Estimate EDD using LMP, ultrasound (GA on report), or IVF - First-60-minute Postpartum Checklist — A timed, 60-minute workflow for vaginal and caesarean births, covering AMTSL, routine maternal–newborn checks, objective blood-loss measurement, and E-MOTIVE bundle launched when PPH is suspected. Why choose this app? • Evidence-based support: Built on internationally endorsed guidelines. • Time‑saving: Simplifies calculations and protocols at the point of care • User‑friendly: Designed for clinicians, program managers, and frontline health workers Important note This tool supports adherence to guidelines; it does not replace clinical judgment, local policies, or emergency pathways. Use at the discretion of qualified providers. In any deterioration or emergency, follow your facility’s escalation/PPH protocols.
DrObsCalc
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DrObsCalc is a clinical gestational age calculator built for real clinical practice. Establish gestation instantly from last menstrual period (LMP), estimated date of delivery (EDD), or known gestational age (GA) on a known date. The calculator adapts automatically, with no manual mode switching required. Designed for obstetricians by an obstetrician, DrObsCalc supports fast, accurate workflow at the point of care. Key Features: • Intelligent input logic for LMP, EDD, or GA-based entry • Automatic recalculation across related values • Fast 6- or 8-digit numeric date entry • Automatic regional date format recognition • Clear trimester and milestone overview Clinical Milestones Pro (One-Time Purchase): • Additional clinical window presets • Create and customise your own clinical window presets • Custom Appointment Planning Weeks • More tailored follow-up planning DrObsCalc performs date calculations and clinical planning support only. It does not provide diagnostic or treatment recommendations.
Screenshots
Verdict
The clearest difference is in-app purchases: Adhuna at none against DrObsCalc's 1. Adhuna also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support 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. DrObsCalc sells 1 one-off in-app purchase. Adhuna asks for nothing beyond the download.
Adhuna ships an update every 4 weeks, DrObsCalc fortnightly. The most recent releases landed on October 1, 2026 and October 28, 2026 respectively.
| Parameter | Adhuna | DrObsCalc |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 39 MB | 11 MB |
| Age rating | 17+ | 4+ |
| Developer | Tank Maternity and Surgical Hospital LLP | Eng Loy Tan |
In-app purchases
Adhuna
No in-app purchases
DrObsCalc
- Clinical Milestones Pro$6.99









