SizeUp Help

First, you might see if your issue is covered in the sections below.

I do my best to respond to email within 24 hours. Please provide as much detail as possible (screenshots are nice) to help avoid "back and forth" emails.

Known Issues

SizeUp on macOS 10.14 Mojave and later

SizeUp is supported on these newest versions of macOS, but some customers find the Spaces actions aren't working properly, even after Enabling Accessibility.

Here are some steps to fix the issue.

Note: Please pay close attention, as these steps look similar to the regular Enabling Accessibility instructions, but with a few changes.

  1. Quit SizeUp.
  2. Open System Preferences > Security & Privacy > Privacy Tab > Accessibility.
  3. Click the lock icon in the lower left to make changes
    (you will be prompted to enter an Administrator's password).
  4. Drag SizeUp from Finder and drop it onto the list of apps to the right (even if SizeUp is already in the list).
  5. Restart SizeUp.

While it may not look like anything happened, this process refreshes the Accessibility database. It's not enough to remove [-] and re-add [+] SizeUp, the real magic comes from dragging SizeUp from Finder and dropping it onto the list.

If SizeUp still doesn't work, then it might indicate that either your Accessibility database or SizeUp is corrupt.

Contact support if you have any questions.

Other Issues

Some windows have a minimum size, so even if you try to resize the window smaller yourself, it will not go any smaller. This might cause a window to take up more than 50% of the screen and might overlap another window. Apple's own apps (iPhoto, iMovie, Preview, etc) have particularly wide minimum widths, as Apple intends for you to use many of these apps in Full Screen mode now.