Downloads
Gablet and Vizo — 7-day free trial, then a paid license. Shoverlay on the Mac App Store. Tablune on the App Store (iPhone / iPad, 7-day trial).
Permissions
Gablet — windows won’t move: grant Accessibility in System Settings → Privacy & Security → Accessibility, then quit and reopen.
Capture / record / camera does nothing: grant Screen Recording, Camera, and/or Microphone to that app, then quit and reopen.
No system audio: recording computer audio needs Screen Recording on supported macOS versions — check the app’s Recording settings.
Files won’t save: the first save to Downloads, Desktop, or Documents may ask for folder access, or pick a folder in Settings.
More help
Short answers: FAQ. Privacy: Privacy Policy. Email support@kingfontsoftware.com with the app name, OS version, and what you expected.