Your question misses the point. With Sketch you _can_ subscribe to updates, which is entirely optional. The software is yours to use forever. Whereas with Adobe

Your question misses the point. With Sketch you _can_ subscribe to updates, which is entirely optional. The software is yours to use forever. Whereas with Adobe you _must_ subscribe and pay rent. If you fail to pay your regular fee, the mob will enter your workshop and drag out the tools you‘re dependent on (virtually speaking).