If you’re a Mac user, there’s a good chance that you have access to the Calculator app. If not, here’s how to see iPhone calculator history:

  1. Open the Calculator app and sign in with your Apple ID.
  2. Click on the three lines in the top left corner of the main screen and select “History.”
  3. The History screen will show all of your past calculations, including those made within the Calculator app itself as well as any calculations made by third-party apps that you’ve installed.