DisplayMath vs HT Calc

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

DisplayMath compared with HT Calc
Detail	DisplayMath	HT Calc
What it does	Free screen size calculator that compares TVs and monitors to scale	Transparent mortgage, lending, and real estate investment calculators
Stage	Not given	Not given
Founded	Not given	Not given
Based in	RO	Not given
Pricing model	Freemium	Freemium
Pricing	Free calculators; optional Planning Pack €9 one-time purchase	Free tier available. Plus: $19/mo or $120/yr. Pro: $49/mo or $348/yr.
Key features	Side-by-side display comparison at true scale Calculate physical dimensions from resolution and diagonal Pixel density (PPI) calculations Field of view angle visualization Preset lists of monitors, TVs, laptops and phones Pixels per degree (PPD) calculator TV mounting height calculator Curved monitor radius support Optional Planning Pack PDF export	Shows inputs that drive estimates Documents key assumptions for program-specific tools Identifies variables that can change Sourced rate updates in Plus plan Investor toolkit in Pro plan
What makes it different	Draws every display to scale for visual comparison instead of guessing Uses THX and pixel-per-degree references for viewing recommendations Augmented reality shows actual screen size on your wall Free to use with no account or signup required Independent with no manufacturer influence on calculations	Transparent calculation methodology showing how inputs shape estimates Educational estimates for informed financial decisions
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	5 no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	24	14
Referring domains (Majestic)	18	1

5 details filled in for both companies.

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