So, what is the catch? QLab Free has one single limitation: You cannot disable the "Watermark" or unlock all physical outputs.
If you work in theater, live events, or installation art, you’ve heard the name QLab . Developed by Figure 53, QLab is the industry standard for audio, video, and lighting playback on macOS. qlab free
You buy a "License" for a specific version (e.g., QLab 5). Once you pay $4–$10 per month (depending on the bundle), you own that version forever. If you stop paying, you keep the features you unlocked up to that point. So, what is the catch