SumiCAD (墨CAD) is free BIM software for Japanese timber houses: every feature of the Windows app is free, with no account and no licence key. Only firms that want to work together online pay for SumiCAD Cloud: ¥1,000 a month including one editor, ¥500 for each extra editor, and free viewers and clients. Prices include tax.
Early Access: SumiCAD 0.6 and SumiCAD Cloud may change, bugs are expected and availability is not guaranteed. We run no extra backups of our own during Early Access (only our database provider's automatic restore, up to 30 days), so keep your own copies: "Download .sumi" in the web app and your local .sumi files. Weekly backups are planned for version 1.0. A qualified architect checks every result (Terms).
For everyone: plans, sections, structure checks, permit sheets, estimates. Windows 10 / 11.
15-day free trial, no card needed to start. If you add a card during the trial, the first payment is taken when the trial ends. Cancel any time. By subscribing you agree to the Terms of Service and the Privacy Policy; see also the Commercial Transactions Act notice.
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Check the price and the terms, then pay on Stripe's secure page. Invoices, card and cancelling: on the same subscription page.
The SumiCAD desktop app is free for everyone. SumiCAD Cloud for firms costs ¥1,000 a month including one editor, plus ¥500 a month for each extra editor; viewers and clients are free. Prices include tax.
No. The desktop app does everything on its own, offline, for free. The cloud is only for firms that share projects online.
The amount changes by itself from the next invoice; the days are prorated by Stripe. Viewers and clients never change the price.
Yes, any time on the subscription page. After the end, the firm becomes read-only: you can still open and download everything, nothing is deleted.
On Stripe's secure payment page. SumiCAD never sees your card number.
The AI assistant is paid by the firm directly to the AI company, with its own key. SumiCAD does not add anything to that cost.
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