Best apps like ORB Calculator

8+ similar apps compared and reviewed

4.2 avg rating
8 free apps
Updated July 2026
ORB Calculator
ORB Calculator
The University of Edinburgh

ORB Calculator is great, but it's not the only option. Explore 8+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to ORB Calculator

T Calc#1

T Calc by ViralMD

Editor's Choice
🏥 Medical
2.7(3 ratings)
Free
T Calc screenshot 1

This tool helps clinicians quickly and accurately calculate circulating free and bioavailable testosterone levels. Input lab values for Albumin, SHBG, and Testosterone to get precise results, reducing manual calculation errors.

QUiPP#3

QUiPP by King's College London

Worth Considering
🏥 Medical
0.0(0 ratings)
Free
QUiPP screenshot 1
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This medical tool assists clinicians in predicting spontaneous preterm birth by analyzing fetal fibronectin and cervical length. It is designed for symptomatic women and high-risk asymptomatic women, based on extensive clinical studies.