Sketch

Sketch was the app that moved interface design off Photoshop and onto a tool built for screens — artboards, reusable symbols/components, and a vector engine tuned for UI work. It's since grown a web-based collaboration layer, but the native Mac app is still the core of the product.

Why it makes the list

It's the longest-running native Mac UI design tool, with the plugin ecosystem and component workflow other tools have spent a decade catching up to. Uniquely among the major UI design apps, it still sells a Mac-only, one-time license for people who want a local-first tool and don't need cloud collaboration.

Standout features

• Components and variables for design systems that stay consistent across a whole file

• Vector editing built specifically for interface work — boolean operations, resizing constraints, grids

• Prototyping with smart animate, overlays, and scrollable frames, previewable on device

• Design-to-code handoff with inspectable specs and asset export

• A deep plugin ecosystem (Mac-only license) for extending the toolkit

Pricing

A Mac-only license is a one-time $120 (includes a year of updates) — offline, local documents, no collaboration or iOS preview. Cloud plans with real-time collaboration start at $12/editor/month billed annually.