EZGrader vs The Concrete Calculator

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

EZGrader compared with The Concrete Calculator
Detail	EZGrader	The Concrete Calculator
What it does	Free grading calculator and printable chart for teachers	Free concrete slab cost estimator with material, labor and site prep breakdowns
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	Three grading scales (standard, strict, lenient) Printable grading charts Half-point deductions GPA points column CSV export for spreadsheets Up to 200 questions Offline functionality No data collection	Material, labor and delivery cost breakdowns Pre-calculated costs for common slab sizes Multiple calculator tools including rebar, yard, bag and footing No sign-up required, data stays in browser
What makes it different	Instant calculation with no manual math required Privacy-first design with no student data storage Built specifically for teachers' workflow	Built by a single independent developer focused on accessible, ad-free calculation tools Transparent calculations using standard formulas so users see exactly how each number is produced Multiple concrete calculation tools sharing one consistent calculation engine
Community votes	0	0
DR (Domain Rating by Ahrefs)	1 no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	20	16
Referring domains (Majestic)	4	4

4 details filled in for both companies.