Visual height comparison tool for people, animals, objects, and characters
Drawing review and markup platform for architecture, engineering and construction teams
Stage
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Founded
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Based in
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US
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).
Desktop license: $89 one-time permanent license for Mac and Windows, includes 1 year of new desktop features. Cloud Free: free tier with 1 workspace, 3 members, 5 documents, 50 AI credits per month. Cloud Pro: $12.50 per user per month (billed annually) with unlimited workspaces, 3 members per works
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
Desktop app for Mac and Windows with local PDF markup tools
Cloud-based collaboration with real-time cursor visibility
Calibrated measurement tools for metric and imperial scales
Version history and version control across drawing revisions
Dropbox and Google Drive integration
Collaborative whiteboards for sketching and design exploration
RFI and punch list tracking with file attachments
Support for large multipage construction drawing sets up to 200 MB
Revision bubbles and hatch fills for clear markup annotation
Works on Mac, Windows, iPad and mobile devices in browser
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
Built specifically for AEC teams with purpose-built markup and measurement tools
Connects to file storage teams already use without requiring file migration
Collaboration without requiring accounts from contractors and clients
Markup permanently tied to drawings and preserved across revisions
One-time desktop license with no subscription required for local PDF tools
HowHeight
Deta Studio