Cairn vs Slickplan

Cairn is a macOS desktop app for mapping screens, data, roles, and CRUD operations before building a product. Users sketch low-fidelity pages, modals, and sheets, then connect them into scenarios with triggers and dependencies across roles. Cairn checks whether data used on a screen was created earlier in its causal flow and flags missing data. Its Fields and Journeys views show where data appears and how each role moves through a flow. The app works offline and saves projects as portable.cairn files on the user's Mac. The maker says Cairn has no accounts or telemetry and does not upload project files; it connects to the internet for update checks and Pro license validation. Cairn is positioned as a complement to Figma for later visual design. The free plan costs nothing and includes one project and up to two scenarios, but does not allow file import or export. Real-time collaboration is not available, and Cairn is not intended for pixel-perfect or high-fidelity design.

Slickplan is a collaborative website-planning suite for content and UX teams, delivered through the web with API access. Its tools include Sitemap Builder, Diagram Maker, Content Planner, and Design Mockups. The Sitemap Builder’s AI assistant can generate site maps, refine structure, and improve page labels in multiple languages. It can crawl an existing website and import URL, XML, or TXT files. CMS plugins transfer structures, content, navigation, and SEO elements to WordPress, Joomla, and Drupal. Listed integrations include Basecamp, Slack, Teamwork PM, and Google Analytics. The REST-style developer API uses SSL JSON requests and OAuth 2.0. Teams can collaborate in real time, use version history, and export PDF, image, or Slickplan XML files. The free version allows one sitemap and one user, with basic functionality, limited support, and web-link-only sharing. Paid plans start at $10.79 a month billed annually, and a 14-day trial is listed.