InstantCalcs vs MakeCalculator

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

InstantCalcs compared with MakeCalculator
Detail	InstantCalcs	MakeCalculator
What it does	Free online calculators for math, finance, health, pregnancy, and more	Free calculators that show their working
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	BMI calculator for health assessment Ovulation and pregnancy tracking calculators Percentage and fraction calculations Loan and mortgage financial calculators Construction calculators for measurements Unit conversion tools FFMI and body composition analysis Instant results with no processing delays	Shows formulas and worked examples Runs in your browser No sign-up required 785 calculators and tools Works on phones, tablets and computers Data stays on your device Covers 54 subjects
What makes it different	Completely free with no signup or registration required Privacy-focused with local browser processing Accurate calculations based on industry-standard formulas 73 calculators across multiple categories Clean and intuitive user interface	Calculators show their working, not just the answer Results come with formula, steps and worked examples Your numbers never leave your browser Built from standard published formulas and tested
Community votes	0	0
DR (Domain Rating by Ahrefs)	15 +3 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	13	0
Referring domains (Majestic)	1	0

4 details filled in for both companies.