Best alternatives to Moio in 2026

Most design tools let you draw what an app should look like, but the moment you want to show how it actually behaves — a menu that opens, a form that reacts, a screen that changes based on what you clicked — you either fake it with linked static screens or hand the whole thing to a developer to build for real. Moio tries to close that gap: it's a visual design tool where you can wire up genuinely interactive behavior — buttons that do things, screens that respond to conditions, content that changes based on variables — without writing any code. Technically, Moio combines a vector-based design canvas (flex layouts, imports from Figma, Sketch or XD) with a separate interaction layer built around Events & Actions, Conditions, and Variables & expressions, so prototypes can hold actual logic instead of just linked frames. It ships pre-built component blueprints, supports live multiplayer collaboration, and previews projects directly as HTML. It's aimed at designers and product teams who want believable, testable prototypes before committing engineering time to build the real thing.