OwnQR vs Diagram Smith

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

OwnQR compared with Diagram Smith
Detail	OwnQR	Diagram Smith
What it does	Dynamic QR code generator with one-time $15 payment, no recurring subscription	Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
Stage	Startup	Not given
Founded	2025	Not given
Based in	CA	Not given
Pricing model	Freemium	Freemium
Pricing	Free: unlimited static QR codes, no account required. One-Time Plan: US$15 for one editable dynamic QR code, or US$39 for five codes (about $7.80 each). All plans include SVG and PNG downloads, custom design options, and no recurring subscription.	Free: no account required, all diagram and chart makers, PNG/SVG/PDF export, no watermark. Pro: Monthly $9.99 a month, Yearly $99.99 a year with 7-day free trial, Lifetime $239.99 once. Euro area: €10.99 a month, €109.99 a year, €259.99 once (VAT included).
Key features	Unlimited URL edits after purchase with no reprinting required Real-time scan analytics with location, device, and time data Custom design with gradients, logo overlay, and rounded corners SVG vector and PNG raster export up to 4096 pixels Support for 12 languages with localized pricing in 4 currencies 30-day trash recovery for accidentally deleted QR codes Google Safe Browsing API verification to prevent malicious redirects	Flowchart and process diagram maker with canvas and text-to-diagram modes Text-to-diagram tools for UML, ER and sequence diagrams Chart tools: pie chart, line graph, gauge and Sankey diagram Automatic diagram layout from typed text Export to PNG, SVG and PDF without watermark Share diagrams with share links Pro: editable .drawio export and vector PDF Pro: multi-page documents and layers Diagram checks for unlabelled branches and dead ends Works on phone and computer
What makes it different	Editable destination URL after printing with same QR code image Free static QR codes with no account or signup required Sunset Pledge guarantees 5-year redirect service if OwnQR discontinues Grandfather clause protects existing customers from future price or plan changes	Completely free with no account required and no watermark on exports Nothing uploaded: all work stays on your device in your browser Results computed by the same tested code, not manually typed Multiple export formats: PNG at 4 sizes, SVG and PDF Converts between formats: Mermaid to draw.io, SQL to ER, Visio to flowchart
Community votes	0	0
DR (Domain Rating by Ahrefs)	19 −1 (down) since last check	3 +1 (up) since last check
Trust Flow (Majestic)	4	0
Citation Flow (Majestic)	28	19
Referring domains (Majestic)	45	4

5 details filled in for both companies.

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