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
Open source
Freemium
Pricing
Not given
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
Open and save .pptx PowerPoint files
Text, images, charts, and vector shapes
Fills, gradients, and formatting options
Transitions and animations
Speaker notes and presenter tools
Slide sections for organization
WebAssembly browser editor
Desktop apps for Mac, Windows, and Linux
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
Completely free with no subscription required
Open-source code that users can inspect and improve
Native Linux app support
No account or cloud storage required
Written in pure Rust for performance
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