CAD review, clearly

Privacy

The Caddis mobile app opens and reviews your files on your device. Files you choose, recents, thumbnails, settings, measurements, markups, and saved views stay on the device and are not uploaded.

To understand how the app is used and to fix problems, the mobile app uses Google Firebase Analytics and Crashlytics. They collect pseudonymous usage data (for example, which tools are used and whether a file format opened successfully), diagnostics such as crash reports and error codes, and app-instance identifiers. Caddis does not set a user ID or link this data to you, does not track you across other companies' apps or websites, and never sends file names, paths, drawing content, measurements, or annotation text.

A mobile source or generated review file leaves Caddis only when you explicitly choose a destination from the operating system share sheet. Caddis does not receive that file unless you separately choose to send it to support.

On the website, the viewer and the free tools (the CAD converter and DWG version checker) read your files inside your browser; files are not uploaded unless you choose an optional cloud feature. We use Vercel Web Analytics to count page visits. It does not use cookies or identify individual visitors. The site may also record anonymous interaction events, such as which conversion format was chosen, never including file names or contents.

When you use Caddis Cloud (a Pro feature), we store what is needed to continue a review across devices: project metadata, the scene your device derives from the drawing, your review overlays (measurements, markups, visible layers, and view state), thumbnails, and — only if you separately choose to upload it — the original source file. Files are held in private cloud storage (Cloudflare R2) with project metadata in a managed database; source geometry and your review overlays are stored separately.

Web accounts and sign-in are handled by Clerk; we verify your identity token and keep a minimal profile (an internal id, your email, and display name). Web subscriptions are processed by Stripe — Caddis never receives or stores your card details.

You are in control. From your account page you can export your cloud data or delete your account at any time. Deletion revokes your sessions and share links immediately, soft-deletes your projects, and removes stored files within 30 days. We do not place your drawings in analytics or logs.

Our local-first promise

Cloud sync, source uploads, and share links are opt-in, per project. A local session is never turned into a cloud project unless you choose to save it.