FAQ
Common questions answered.
What is Tinn?
The specification tool for the built environment. Plan materials, products, surfaces, and dimensions in a single desktop app, then print a clean spec sheet for handover. Projects live as .tinn files on your machine and export to PDF. No subscription needed to open or read your files.
Who is it for?
Architects, engineers, interior designers, and builders who specify materials, products, and surfaces for a living. Solo practitioners and small studios are the main fit, though it scales to larger offices too.
Do I need an internet connection?
No. Projects open and save with no network connection. You only need an account for online features like the clip library.
Where are my files stored?
Your projects are .tinn files that live wherever you put them: your hard drive, Dropbox, a network drive. Tinn never uploads your project files to our servers. You own them, and they stay readable long after any subscription ends.
What does Tinn cost?
Tinn is free, and stays free. Everything that happens on your own machine, with your own files, is free forever. Cloud storage, working across devices, sharing with clients, and AI help cost money to run, so those will be paid when they arrive. See the pricing page.
Is my client data shared with anyone?
Almost none. Your project files never leave your machine. The one exception is the client portal: if you use it, a snapshot of the shared project is routed through Tinn's servers to generate the web view. We also collect account information (email and display name) and anonymous crash and usage reports. See the privacy policy for details.
How do I get help or report a bug?
Email support@tinn.app. Include your OS version and Tinn version (Help → About inside the app) so we can reproduce the issue. There is no chat support or ticketing system. Email is the right channel.