Sketch no longer offers a perpetual license. They have moved to a subscription model. Here are some other desktop apps where the software does not expire. (Upd

Sketch no longer offers a perpetual license. They have moved to a subscription model. Here are some other desktop apps where the software does not expire. (Updates or upgrades can be paid for new features). - Affinity apps: Designer, Photo, Publisher - Sublime text - Fontlab (Lifetime license, type design app) - Glyphs (Mac-only, type design app)