Last updated: July 15, 2026
These Terms of Service (“Terms”) govern your use of Stil (“Service”), operated by Crop&Kern Co., Ltd. (registered Japanese name: Crop&Kern株式会社) (“Company”, “we”, “us”). By accessing or using the Service, you agree to these Terms.
Stil is a SaaS for design system management, validation, and integration with AI development tools. Depending on your plan and availability, the Service provides some or all of the following:
You must provide accurate information when creating an account. You are responsible for maintaining the security of your account credentials.
Each account belongs to a Workspace. The Workspace owner is responsible for managing members, billing, and project access.
The Service is not available to users under 16 years of age. If you are a minor, you must obtain consent from your legal guardian before using the Service.
The Free plan includes limited access to the Service at no cost. We reserve the right to modify Free plan limits at any time.
The Pro plan is billed per editor per month. Annual billing receives an approximately 20% monthly-equivalent discount. Billing begins at the start of your subscription period. An “editor” is a workspace member with Owner, Admin, or Member permissions, or a project-only external guest individually invited with Member- or Admin-level access. Viewers (read-only access) are always free and do not count toward your editor total.
Prorated charges or credits from adding or removing editors are combined and reflected on your next regular invoice. We do not charge or refund you immediately for either an addition or a removal. If you switch your billing interval from monthly to annual, the switch takes effect immediately: we credit the unused portion of your current monthly period and charge the net difference for the new annual period immediately through Stripe. If you switch from annual to monthly, your annual plan remains active for the rest of its current term, and the switch to monthly takes effect automatically at the end of that term. Fees you have already paid are non-refundable except as required by applicable law.
Payments are processed through Stripe. You agree to Stripe’s terms of service for payment processing. All fees are non-refundable except as required by applicable law.
You may cancel your subscription's auto-renewal at any time. You continue to have access to the Service through the end of your current billing period, at which point auto-renewal stops and no further charges occur. No prorated refund is provided for the unused portion of a period you have already paid for except as required by applicable law. For prorated charges or credits related to editor count or billing interval changes, see Section 4.3.
We may change pricing with 30 days advance notice. Existing subscriptions are honored for the remainder of their current billing period.
You agree not to:
You retain ownership of your design tokens, components, DESIGN.md files, and other content you create using the Service. You grant us a limited license to host, process, and display your content as necessary to provide the Service.
The Service, including its design, code, and documentation, is owned by Crop&Kern Co., Ltd. (Crop&Kern株式会社) and protected by intellectual property laws.
Any feedback or suggestions you provide about the Service may be used by us without obligation to you.
Your project data (tokens, components, rules) is stored and processed on infrastructure and external services we use to provide the Service. We use Supabase for database services and Vercel for application hosting.
You may export your data through the Service’s export features or API, to the extent supported by those features.
Upon account deletion, authentication users, sessions, OAuth connections, memberships, personal access tokens, and similar account records are deleted. Workspaces, billing history, audit logs, and records required for legal, security, or legitimate business purposes may be retained, deleted, anonymized, or kept with identifying account links removed.
The Service may integrate with Figma, GitHub, Google, Stripe, Supabase, Vercel, email delivery services, AI providers, and other external services you connect. Your use of these integrations is subject to their respective terms of service and privacy policies. We are not responsible for the availability or functionality of third-party services.
THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE.” WE MAKE NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, CONTINUOUS AVAILABILITY, ACCURACY, COMPLETENESS, OR SECURITY. NOTHING IN THESE TERMS EXCLUDES LIABILITY FOR WILLFUL MISCONDUCT OR GROSS NEGLIGENCE, OR ANY LIABILITY THAT CANNOT BE EXCLUDED BY LAW.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, CROP&KERN CO., LTD. SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES ARISING FROM YOUR USE OF THE SERVICE. OUR TOTAL LIABILITY SHALL NOT EXCEED THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM. THIS LIMITATION DOES NOT APPLY TO LIABILITY FOR WILLFUL MISCONDUCT OR GROSS NEGLIGENCE, OR ANY LIABILITY THAT CANNOT BE LIMITED BY APPLICABLE LAW.
We may update these Terms as needed. We will notify you of material changes via email or through the Service prior to the effective date. Continued use of the Service after the effective date constitutes your acceptance of the revised Terms.
These Terms are governed by and construed in accordance with the laws of Japan. Any disputes arising from or relating to these Terms or the Service shall be subject to the exclusive jurisdiction of the Tokyo District Court as the court of first instance.
Crop&Kern Co., Ltd. (Crop&Kern株式会社)
Contact: https://stil.dev/contact