FlowSnap

FlowSnap turns app screenshots into sitemaps and user-flow diagrams for product managers, UX designers, and indie developers. Its canvas supports panning, pinch zoom from 10% to 200%, color-tagged cards, and text annotations. Each project can import up to 50 screenshots at once from a photo library or Google Drive. Users can link cards with solid or dashed lines, customize connection colors, and label transitions. Optional AI features analyze screenshots, suggest connections, and generate a Markdown sitemap summary; they require the user's Claude API key and send screenshots to Anthropic's Claude API. Projects are saved locally and can optionally sync to a FlowSnap folder in Google Drive; the listing says FlowSnap does not store project data. Exports include PNG, PDF, SVG, JSON, and Markdown. The free plan allows three projects and adds a watermark to PNG exports. Pro is listed at $2.99 a month or $19.99, paid once, with unlimited projects, PDF export, watermark-free PNG, SVG export, and priority AI features. FlowSnap supports Android, iOS, and macOS.

FlowSnap offers screenshot-based mapping with multiple export formats and optional Google Drive sync. The free project cap and the API-key and screenshot-sharing requirements for AI features are key considerations.

FlowSnap may suit product managers, UX designers, and indie developers mapping app structure from screenshots. Its import, linking, and export tools support documenting screens and transitions.

FlowSnap is a mobile and Mac app for mapping app screens into sitemaps and user flows. It best suits product managers, UX designers and indie developers who already have screenshots to organize. Its project canvas and broad export options make it useful for focused mapping, but the free tier is capped and polished exports require Pro.

Overview

The screenshot-first approach gives FlowSnap a clear job: organize existing screens into a visual map, rather than create an app design from scratch. Its infinite canvas combines imported screens, annotations and labeled connections, with templates for a starting structure. That should suit people documenting an existing app or clarifying its routes; it is a narrower choice for work that does not begin with screenshots.

Projects are saved locally and can optionally sync to a FlowSnap folder in the user's Google Drive. The listing says FlowSnap does not store project data. Those who enable AI should account for a separate data path: screenshots are sent to Anthropic's Claude API using the user's own API key.

Key features

A project can import up to 50 screenshots in a batch from the photo library or Google Drive. On the canvas, users can pan, pinch-zoom from 10% to 200%, color-tag cards and add text annotations. This gives a map room to grow while keeping groups and notes visually distinct.

Solid and dashed connectors, customizable line colors and transition labels help make routes legible instead of leaving viewers to infer how screens relate. Flow templates offer a useful starting point. Exports include PNG, PDF, SVG, JSON and Markdown, so a map can serve as a visual handoff or a more structured output. The free plan includes core canvas features, but its PNG export has a watermark; PDF, SVG and watermark-free PNG are Pro features.

Optional AI can analyze screenshots, suggest connections and generate a Markdown sitemap summary. Requiring a Claude API key gives users control over whether to use the feature, but also means supplying a key and sending screenshots to Anthropic; it is not a turnkey AI service included with the app.

Pricing

Free costs nothing and includes core canvas features, with a limit of three projects and a watermark on PNG exports. It is a reasonable way to try the workflow or handle a small mapping task, but the cap can become restrictive once projects accumulate, and the watermark makes those PNGs less suitable for polished sharing.

FlowSnap Pro — Monthly costs $2.99 a month. It removes the project limit and adds PDF export, watermark-free PNG, SVG export and priority AI features. It fits ongoing work or users who need clean visual deliverables without a longer commitment.

FlowSnap Pro — Lifetime costs $19.99, paid once and includes the same stated Pro features: unlimited projects, PDF, watermark-free PNG, SVG and priority AI features. It is the lower-commitment alternative for someone who expects to keep using FlowSnap; the monthly plan is the option for users who prefer paying month to month.

Platforms

FlowSnap supports Android, iOS and macOS. The App Store listing specifies iOS 13.0 or later and macOS 10.15 or later.

Who it's for

FlowSnap is a good fit for product managers, UX designers and indie developers who need to turn screen captures into a navigable map and share it in visual or structured formats. The 50-screenshot batch import and transition labels are especially relevant when documenting an existing app. It is less suited to users who need more than three projects without paying, want clean PNG exports on the free tier, or do not want to provide a Claude API key and share screenshots for AI features.

Pros and cons

• Pros: Batch imports of up to 50 screenshots give a substantial flow a head start; the canvas supports annotations, color-tagged cards and labeled connections; five export formats cover visual and structured handoffs.
• Pros: Local project storage with optional Google Drive sync gives users a choice about syncing, and the listing says FlowSnap does not store project data.
• Cons: The free tier stops at three projects and watermarks PNG exports, limiting both continued use and clean sharing.
• Cons: AI requires a personal Claude API key and sends screenshots to Anthropic, which may not suit users who want AI without that setup or data sharing.

Alternatives

User Flow Software is a broader category to consult when comparing options for mapping user flows.

Choose Marvel instead if its free plan's one-user, one-project allowance is enough, or if its Pro plan's unlimited projects are a better fit. Rheo is another freemium option for readers looking for a different app-focused tool. Sketchflow.ai is a freemium option available on Android, iOS and web.

Software Ideas Modeler may suit readers seeking UML and basic diagrams, with a free non-commercial option. BenchCanvas is a freemium web and extension option for readers who want to consider its planned Pro features, including AI analyses and sharing without branding. Cairn is a macOS alternative whose free plan supports one project and two scenarios, without file import or export.

EVONX is a web-based freemium alternative. Figr is a freemium option for readers seeking an API, extension or web platform, with a free plan that includes export to Figma.

Verdict

FlowSnap is a strong fit for screenshot-led mapping when you want a spacious canvas, clear transition annotations and flexible exports. The lifetime Pro plan is a straightforward route to unlimited projects and clean export formats, while the free tier lets smaller projects use the core canvas. Look elsewhere if the three-project cap and PNG watermark are deal-breakers, or if AI screenshot sharing through Claude does not fit your workflow.