Responsive Tool vs QuokkaQuery

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

Responsive Tool compared with QuokkaQuery
Detail	Responsive Tool	QuokkaQuery
What it does	Free responsive website checker for mobile, tablet and desktop	Making software for making software
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Free	Not given
Pricing	Not given	Not given
Key features	Test multiple device viewports simultaneously Real CSS viewport rendering Share setup links Custom pixel width testing No installation required Sync scroll across panes Browser-based with no account needed	Visual designer for React apps on a unified canvas Keyframe-based media production platform Open source libraries for npm
What makes it different	Compare multiple real device widths side by side instead of switching one at a time Faster than DevTools for checking several device sizes at once Entirely browser-based with no setup, signup or download Built and maintained by one developer in the open	Design entire systems including pages, components, routes, and state on one canvas Focused tools that cut friction out of designing software
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	15 no change since last check
Trust Flow (Majestic)	1	2
Citation Flow (Majestic)	25	19
Referring domains (Majestic)	14	3

3 details filled in for both companies.