Hi there! I understand that your Calzy app is not showing history. I want to get a bit more information so I can guide you effectively—when you say history isn’t displaying, do you mean you don’t see your past calculations within the app, or is the history feature missing entirely? Also, have you tried any steps already to fix this, like restarting the app or your Mac?

While you get back to me, here’s a general approach we can take to address this issue on your Mac running OS X 10.13:

1. Check if History is Enabled or Accessible in Calzy
In Calzy, sometimes the history pane might be hidden by default. Look for a menu or toolbar button related to “History” or a similar icon that opens your calculation history. On some calculator apps, keyboard shortcuts like Control+Command+S open the history pane—though I would need to check if that applies to Calzy specifically.

2. Restart the App
Close Calzy completely and relaunch it. This often refreshes the app’s state and might restore the visibility of the history.

3. Ensure App and macOS Are Updated
Your Mac’s OS version, 10.13, is a bit older. Check if you have the latest version of Calzy compatible with your OS. Updates can fix bugs including display issues with history features.

4. Verify iCloud Sync Settings
If you use iCloud sync for Calzy (which uploads settings and data to Apple’s servers), make sure it’s properly set up. Sometimes history data depends on syncing, and issues with iCloud could affect it.

5. Reset Calzy Preferences
If none of the above works, you might try resetting the app’s preferences, which can clear out any corrupted settings affecting history display. You can usually do this by removing the preference files in your user Library folder (I can guide you through the exact steps if you want).

Could you please let me know what you have tried or noticed so far? Also, if you can describe exactly how the history is missing (e.g., the history pane is blank, or there’s no option to access history at all), that would help me narrow down the solution for you.

Looking forward to your reply!