HowHeight 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.

HowHeight compared with Diagram Smith
Detail	HowHeight	Diagram Smith
What it does	Visual height comparison tool for people, animals, objects, and characters	Free online tools for flowcharts, charts, diagrams and timelines with no sign-up
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Freemium	Freemium
Pricing	Free plan available with limited features. HowHeight Pro plans: Monthly $4.99, Quarterly $9.99 per 3 months (with permanent unlock of more object placements), Yearly $29.99 per year (with permanent unlock and lifetime compression after 7-day trial ends and annual payment succeeds).	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	Visual height comparison on a shared baseline scale Support for centimeters and feet plus inches measurements Compare people, celebrities, animals, objects, and fantasy characters Save comparison boards with Pro subscription Export comparisons as PNG images Create shareable links for comparison boards 1,000+ built-in asset references Custom names and editable entries Ad-free workspace with Pro subscription Unlimited objects on boards with Pro subscription	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	Over 1,000 built-in asset references with celebrity presets for instant comparisons Single shared baseline makes height differences proportional and easy to understand at a glance Simple three-step workflow with no signup required for basic use Export and share results as PNG images or shareable links	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)	26 −1 (down) since last check	2 no change since last check
Trust Flow (Majestic)	21	0
Citation Flow (Majestic)	39	19
Referring domains (Majestic)	218	4

5 details filled in for both companies.

More alternatives to HowHeight More alternatives to Diagram Smith