Design

An AI design canvas for software, not for interfaces.

Worth saying plainly: this designs the structure of an application, not its interface. If you want polished UI mockups, the tools below are better.

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What this is not

Searches for AI app design tools usually mean visual UI: Figma AI, Visily, Uizard, Galileo, Stitch, Banani. Those generate screens, components and high-fidelity mockups, and they are good at it. Lucid Train does not produce visual designs and does not compete with them. If you need a screen that looks like a product, use one of those.

What it actually does

App-design diagrams: screens as wireframe cards in navigation order, and user flows as decision graphs. That is structure, which is what you need before visual design starts and what usually gets skipped, so a designer receives a feature request with no agreed flow behind it.

Structure before pixels

The expensive mistakes in an application are structural: a flow with a dead end, a state nobody designed for, a screen reachable from two places that behaves differently. Those are visible in a flow diagram and easy to miss in a set of mockups, because a mockup shows one state at a time.

It connects to implementation

The distinguishing part is the same as everywhere else here: the flow diagram becomes a specification for a coding turn. That is a straighter line from structure to working code than a mockup provides, and it is deliberately not a substitute for the visual design step.

Where this sits

NeedUse
High-fidelity UI mockupsFigma, Figma Make
Prompt to app screensVisily, Uizard, Galileo, Stitch
Prompt to working frontendv0, Lovable, Bolt.new
User flows and navigation structureLucid Train
Screen inventory before design startsLucid Train
System architecture behind the appLucid Train
FAQ

Questions

Is this a Figma alternative?

No. Figma is for designing interfaces; this is for designing the structure underneath one. They are used at different points and by different people.

Can it generate screens from a description?

Wireframe cards in navigation order, yes. Polished screens, no, and any tool claiming both usually does one of them badly.

What is the app diagram kind?

A layout mode where cards are drawn as tall screen frames with title bars, arranged in navigation order rather than in tiers. It reads as a flow rather than as an architecture.

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