I am not able to purchase the Extreme Clean unlock (Purchase Failed)

Troubleshooting steps for when the Extreme Clean in-app purchase fails in Memory Clean.

The Mac App Store can occasionally encounter issues that prevent in-app purchases from completing. If your Extreme Clean purchase is failing, follow the steps below to clear the App Store cache and try again.

Troubleshooting steps

  1. Open the Mac App Store and sign out by going to Store then Sign Out.
  2. Quit the Mac App Store completely (press Cmd + Q or click the red close button).
  3. Quit Memory Clean by right-clicking the menu bar icon and selecting Quit.
  4. Open Terminal and run the appropriate command for your macOS version:
    • macOS 10.10 (Yosemite) and later: sudo pkill -f CommerceKit
    • OS X 10.9 (Mavericks) and earlier: killall -9 storeagent
    • You may be prompted for your password.
  5. Reopen Memory Clean from your Applications folder and attempt the purchase again.

For users outside the United States

There is an occasional Apple server issue that may display a message asking you to change your country when purchasing from a non-US Mac App Store. If this happens:

  1. Press OK on the dialog.
  2. Sign in again with your Apple Account (called Apple ID on older macOS versions).
  3. Quit Memory Clean and reopen it.
  4. Try the purchase again. It should process correctly on the second attempt.

If you continue to experience problems, please contact us through the support form.