Online Ruler vs QR Code Spot

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

Online Ruler compared with QR Code Spot
Detail	Online Ruler	QR Code Spot
What it does	Measure anything on your screen with pixel-perfect accuracy	Free QR code generator with editable codes and scan analytics
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	MV
Pricing model	Free	Freemium
Pricing	Not given	Free plan: 10 editable codes, unlimited static codes and scans, 5 destination changes per month, 7 days analytics. Starter: $4/month billed annually ($5 monthly), 50 editable codes, unlimited changes, 90 days analytics. Growth: $9/month billed annually ($12 monthly), 300 editable codes, lifetime ana
Key features	Smart Auto-Detect identifies your device from a database of 100+ profiles Three calibration methods: auto-detect, screen diagonal, and credit card Place rulers on any edge of the screen in any combination Click-to-measure distances in any direction Live cursor position tracking Dark mode with automatic system preference detection Support for four measurement units: cm, mm, inches, and pixels	Static QR codes that never expire Editable codes changeable after printing Scan tracking and analytics Logo and custom designs Multiple QR code types including Wi-Fi, WhatsApp, payments QR Studio for badge-style code designs Bulk code generation from spreadsheets Print-ready file formats No signup required for basic codes
What makes it different	No installation required—runs entirely in your web browser Achieves near pixel-perfect accuracy typically within 0.5mm for well-calibrated screens Completely free with no ads, account, or limitations Calibration saved locally so no need to recalibrate on each visit Works on tablets and mobile devices with touchscreen support	Codes never expire and keep working even if you cancel Change printed codes after printing without reprinting Privacy-first analytics never recording who scanned No ads anywhere on codes or site Free forever option with 10 editable codes
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)	4 +3 (up) since last check	23 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	17	18
Referring domains (Majestic)	4	2

4 details filled in for both companies.

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