Cairn vs FlowDraft

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.

FlowDraft is a browser-based visual builder for designing and sharing user journeys, marketing funnels and UX flows. Users arrange nodes, connectors and templates by dragging and dropping, or begin with prebuilt funnel and onboarding templates. Finished flows can be exported as PNG or PDF files, or shared through a public link. FlowDraft is intended for marketers, UX designers, product managers, freelancers, consultants and growth teams. The editor can be opened without signing up, and the Free plan costs nothing. Projects and related data are saved in the browser using LocalStorage rather than on FlowDraft's servers; users can remove saved projects by clearing that local storage. The privacy policy says the service may collect anonymous analytics, such as browser type or visit count, without personally identifying information. It uses minimal cookies for basic functionality and says it does not use advertising or tracking cookies. The service runs on the web. For questions, its contact page says it usually responds within 24–48 hours on business days.