How to View Your Diagnostics and Usage Data on an iPhone

Open your iPhone’s Settings. It’s an app with a gray cog on one of your home screens. It might be in a folder called “Utilities.”

Scroll down and tap Privacy. It’s in the third section.

Scroll down and tap Diagnostics & Usage. It’s at the bottom of the menu.

Tap Diagnostics & Usage Data.

Tap an entry to view diagnostic data. Logs for specific apps begin with the app’s name, followed by the date (e.g. “Evernote-2016-12-27”). Entries that begin with “JetsamEvent” are created when apps and data have memory (RAM) issues. Entries that begin with “Stacks” don’t represent crashes. They just contain information about iOS.