Keylight Licensing

Keylight helps developers ship paid software without having to build their own licensing system.

It handles offline license verification, device activations, seat limits, feature flags, renewals, revocations, and Stripe-connected license creation from one dashboard.

Licenses are Ed25519-signed and can be verified locally inside your app, so users can keep using the product even without an internet connection. Keylight supports Swift, Rust, Tauri, JavaScript, and TypeScript integrations, making it useful for macOS, iOS, desktop, and web-based apps.

Payment platforms like Stripe, Paddle, Lemon Squeezy, Polar, and Gumroad help you sell software. Keylight focuses on the other side: deciding who can use what, on which device, and for how long.

Main features Offline license verification Ed25519-signed license files Swift SDK Rust and Tauri support JavaScript and TypeScript support Device activation tracking Seat limit enforcement One-click license revocation Feature flags per license Multi-product dashboard Multi-tenant workspace support Stripe-connected billing Renewal and expiration handling Customer license portal Best for

Keylight is useful for:

Indie developers selling apps directly Developers shipping outside app stores macOS and iOS apps Tauri desktop apps Rust-based apps JavaScript and TypeScript projects Teams that need device-based activations Apps that need offline license checks Products with Pro tiers, betas, or feature flags Developers who want Stripe for payments but a proper licensing layer on top Keylight vs payment platforms

Stripe, Paddle, Lemon Squeezy, Polar, and Gumroad help you accept payments.

Keylight helps your app understand whether a customer has access, what license they own, which features are unlocked, how many devices are active, and whether the license is still valid.

Most paid apps need both: a payment system and a licensing system.