Utilvo vs ReactionTests

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

Utilvo compared with ReactionTests
Detail	Utilvo	ReactionTests
What it does	Browser-native tools for PDF, images, OCR, and calculations—100% client-side, no uploads, no signup	Test your visual reaction time for free
Stage	Startup	Not given
Founded	2024	Not given
Based in	US	Not given
Pricing model	Free	Free
Pricing	Not given	Not given
Key features	1,600+ browser-based tools PDF editing and conversion OCR in 100+ languages Image processing and compression QR code and barcode generation Document templates: resumes, invoices, certificates Zero watermarks on output files	Five-round visual reaction test with millisecond timing Seven-round sound reaction time test Local result history with up to 300 sessions stored Consistency measurement showing standard deviation of scores Download score card as image Sound calibration for personal offset adjustment Reference data from published research studies
What makes it different	All files stay on your device—zero server uploads, guaranteed ephemeral data No account creation, registration, or paywall required Professional output with no watermarks, free for commercial use Sub-second performance via WebAssembly and local execution 1,600+ tools with continuous updates based on user feedback	No account or login required to use the test Results stored locally in browser for privacy Compare full sessions to understand consistency, not just fastest round Research-backed reference data from laboratory studies
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)	15 +3 (up) since last check	3 no change since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	26	11
Referring domains (Majestic)	17	1

4 details filled in for both companies.

More alternatives to Utilvo More alternatives to ReactionTests