Hi! I understand Notability is freezing on your iPhone when you try to use the search function. Let's work together to get this sorted out.

To start, could you tell me if your Notability app is updated to the latest version? Sometimes bugs causing freezing get fixed in updates.

Meanwhile, here are some steps that often help with freezing during search in Notability on iPhone:

1. Force Quit and Restart the App
Double-tap the Home button (or swipe up and hold if your iPhone has no Home button) to bring up the app switcher, then swipe Notability off the screen to close it fully. Open it again and try searching.

2. Restart Your iPhone
Sometimes a reboot clears temporary glitches. Hold down the power button and slide to power off, wait 30 seconds, then turn it back on.

3. Check Safe Mode Setting in Notability
Though Safe Mode options are mainly on iPads, it's worth checking if you have any related settings in Notability’s iPhone settings or in the iPhone Settings app under Notability. This mode can disable features that might cause crashes.

4. Disable Auto Cloud Syncing Temporarily
Auto cloud sync can sometimes cause freezing. If you use iCloud or another cloud service within Notability, try turning off syncing temporarily in Notability’s settings to see if search works.

5. Clear Some Storage
If your iPhone is low on storage, apps can freeze. Check your available space in Settings > General > iPhone Storage.

6. Reinstall Notability
If the above don’t help and you have your notes backed up or synced, try deleting the app and reinstalling it from the App Store.

If you’ve tried these or need help with any step, just let me know! I’m here to guide you through it.

Are you currently using the latest iOS version on your iPhone? And does the app freeze right away upon searching or only after typing a certain amount? This info will help me tailor the next steps.