Clear Keyboard History iPhone
iOS stores your typing habits in a couple of different places, and most people don't realize that hitting reset on one doesn't clear everything. The system keeps a personal word list that feeds autocorrect and predictive text, separate from the Word Completion cache that suggests whole phrases based on your recent typing patterns. The straightforward path is Settings > General > Transfer or Reset iPhone > Reset > Reset Keyboard Dictionary. This wipes out your custom dictionary entries—the words you've added manually or that the system has learned over time. It's irreversible. After you do this, your keyboard goes back to factory defaults and starts relearning from scratch. Here's the part nobody mentions though. Resetting the keyboard dictionary does not touch your Word Completion data. That's stored separately under Settings > General > Reset > Erase All Content and Settings or you can hit Reset > Reset All Settings, which clears the word completion cache along with your preferences but leaves other data intact. I've seen people go through the dictionary reset twice thinking they were being thorough, only to have their keyboard still suggesting embarrassing autocomplete completions from six months ago because the Word Completion database was untouched the entire time.
If you want to actually Clear Keyboard History iPhone and mean it end to end, you need to hit both reset points. Dictionary first, then the Word Completion reset. Some people in my circle also toggle Developer mode on jailbroken devices and manually purge the files at /var/mobile/Library/Preferences/com.apple.CorePrediction/ but that's a different conversation entirely and carries its own risks.
How to Clear Keyboard History iPhone for real
Step one is the dictionary reset through Settings > General > Transfer or Reset iPhone > Reset > Reset Keyboard Dictionary. Confirm the prompt. Your keyboard starts blank after this. Step two is the Word Completion reset. Go back to the same Reset menu and select Reset All Settings instead. This wipes the phrase prediction data without touching your apps, photos, or account credentials. I've done this at least a dozen times across different devices for people who were paranoid about someone else accessing their typing patterns, and it works consistently. The downside is that you lose all your system settings too—Wi-Fi passwords, ringtones, wallpaper choices, notification preferences, everything resets to default. You'll spend another twenty minutes reconfiguring your device after. There's an edge case that bites people regularly. If you use third-party keyboards like Gboard or SwiftKey, the reset steps above only clear Apple's built-in keyboard data. Your third-party app maintains its own dictionary and suggestion history independently. I had a user once who wiped the iOS keyboard dictionary three times and still had autocorrect pulling words from her SwiftKey profile because she never cleared that separately. You have to go into each keyboard app's settings and delete its personal dictionary individually. Gboard hides this under Data Usage > Delete Personal Dictionary. SwiftKey has it in Settings > Privacy > Clear Learning Data. If you have multiple third-party keyboards installed, you need to do this for every single one.
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Another thing that doesn't work the way people expect: clearing Safari autocomplete and clipboard history has zero effect on keyboard suggestions. Those are completely separate systems. I've lost count of the number of people who clear their Safari form autofill and then get confused when their keyboard still completes the same phrases they've typed repeatedly in Messages or Notes. The most aggressive option available without jailbreaking is a full factory reset through Restore iPhone in iTunes or Finder. That nukes everything including all keyboard history across every app and system component, then you restore from a backup or set up as new. This is overkill for most people but it's the only method that guarantees nothing survives. I recommended this to someone who was selling their phone and didn't trust any of the partial resets to be thorough enough. It took about an hour total including the restore, and the buyer never complained about leftover suggestions. If you're doing this for privacy reasons rather than just a clean slate, consider that iOS 16 and later has introduced some protections around keyboard data that weren't there before. Network-level suggestions and certain phrase predictions may behave differently depending on your iOS version. The reset paths I described work on iOS 15 through the current betas, but the exact menu locations shift slightly between versions. If you can't find the Reset menu where I said it would be, check Settings > General > Reset rather than Transfer or Reset iPhone, since Apple moved things around a few times.
