Gmail Labels Not Showing on iPhone After iOS 18? Fix Them

After updating to iOS 18, many iPhone users open Gmail and find their carefully organised labels have vanished from the menu. The emails are still there, and the labels still work on a computer, but the app shows only Inbox, Sent, and a few basic folders.

This is almost always a display or sync setting that changed during the update, not lost data. Labels in Gmail are powerful because one email can carry several at once. This guide shows you how to make hidden labels visible again, check the app settings that control them, and fix sync problems when labels appear but their emails do not.

Quick Answer

Open Gmail on a computer, go to Settings and Labels, and make sure each missing label is set to Show and Show in IMAP. Then in the iPhone Gmail app, check Settings and Label settings to confirm the same labels are enabled. If they still do not appear, update Gmail, sign out and back in, or reinstall the app to rebuild the label list under iOS 18.

How Gmail Labels Work in the iPhone App

Labels are not folders. A folder stores an email in one place, while a label is a tag, and a single message can have a work label, a receipts label, and a follow-up label at the same time.

In the iPhone app, labels appear in the side menu when you tap the three-line menu button. Gmail decides which labels to list based on three things: the label visibility set in Gmail on the web, the label choices inside the app, and whether the account has synced successfully since the last change.

An iOS update can disturb any of those three. The app may need to rebuild its local index, a permission may reset, or the label list simply needs a fresh sync. That is why the fix usually starts on the web version, where label visibility is controlled.

First Check: Are the Labels Hidden or Empty?

Before changing settings, scroll the full side menu in the app. Labels appear below the standard folders, and on smaller screens they can be pushed far down the list.

Also use Gmail search in the app and type label: followed by the label name, for example label:receipts. If results appear, the label and its emails exist and the issue is only the menu display. If nothing appears anywhere, check the web version next.

Fix 1: Set Labels to Show in Gmail on the Web

This is the step most people miss. If a label is hidden on the web, the iPhone app will not show it either, no matter how often you reinstall the app.

1. On a computer, open gmail.com and sign in to the same account you use on your iPhone.
2. Click the gear icon, then click See all settings.
3. Open the Labels tab.
4. Find each missing label in the list and click Show next to it.
5. Make sure Show in IMAP is also selected for that label.
6. Scroll through system labels such as Starred, Important, and All Mail as well, because updates can change those too.

While you are there, check for nested labels. A child label under a parent you hid will also disappear. Set the parent to Show as well, at least while testing. Google outlines these options in its official Gmail labels help guide.

Fix 2: Check Label Settings Inside the iPhone App

The Gmail app has its own label controls for notifications and display. Confirm the missing labels are switched on there too.

1. Open the Gmail app and tap the menu button in the top left.
2. Scroll down and tap Settings.
3. Tap your email address under Account settings.
4. Look for Label settings and open it.
5. Tap each missing label and make sure it is enabled and set to sync.
6. Return to the inbox, tap the menu again, and scroll down to check whether the labels now appear.

Give the app a minute after changing these settings, ideally on Wi-Fi. Label lists and message counts do not always update the instant you change a toggle.

Fix 3: Force a Fresh Sync and Update the App

If the settings are correct but the menu is stale, the app may be showing an old cached list from before the iOS 18 update.

1. Open the App Store, tap your profile picture, and check for a Gmail update. Install it if available.
2. Open Gmail and pull down on the inbox to force a refresh.
3. Close Gmail fully by swiping it away from the app switcher, then open it again.
4. Check that your iPhone itself has no pending iOS update under Settings, General, Software Update, because early iOS releases often receive quick bug-fix patches.
5. Confirm Background App Refresh is on for Gmail under Settings, General, Background App Refresh.

For more general post-update mail trouble, our guide on fixing Gmail not working on iPhone after an update covers notifications, sending, and account errors as well.

Fix 4: Sign Out and Sign Back In to Gmail

Signing out removes the account’s local data from the app and forces a complete rebuild of folders, labels, and message indexes when you sign in again.

1. In the Gmail app, tap your profile picture in the top right.
2. Tap Manage accounts on this device.
3. Tap Remove from this device for the affected account and confirm. Your emails stay safe on Google’s servers.
4. Restart your iPhone.
5. Open Gmail, sign in again, and wait several minutes on Wi-Fi while the account rebuilds.
6. Open the side menu and check the label list.

If reinstalling feels safer, you can delete the Gmail app entirely and download it again from the App Store before signing in. That achieves the same rebuild and also guarantees you have the newest version built for iOS 18.

What If Labels Show but Emails Inside Are Missing?

Sometimes the label returns but shows far fewer emails than the web version, or looks empty. That points to a sync range or filter issue rather than visibility.

First, open the label, pull down to refresh, and wait. Large labels can take time to populate after a rebuild. Second, check whether a filter is moving mail: on the web, open Settings and Filters and Blocked Addresses, and confirm no filter skips the inbox in a way you did not intend.

Third, remember that the app downloads recent mail first. Very old labelled emails may only appear when you search for them or scroll and load more. Searching by label name plus a sender is the fastest way to confirm the messages are reachable.

Finally, check iPhone storage under Settings, General, iPhone Storage. A nearly full phone can prevent Gmail from downloading label contents even when the menu displays correctly.

Common Mistakes to Avoid

The most common mistake is creating new labels with the same names as the missing ones. That splits your organisation into two half-empty systems and makes searching confusing. Always restore the original labels first.

Another mistake is checking settings in the wrong account. If you have a personal and a work account in the app, label visibility is per account. Make sure the profile picture at the top matches the account you are fixing.

Avoid assuming the iOS Mail app and the Gmail app share label settings. If you read Gmail through Apple Mail, labels behave like folders there and are controlled by different settings. This guide is for the Gmail app itself.

Also avoid deleting emails while testing. If a label looks empty, the safest test is searching on the web version, where nothing about the iOS update can affect the results.

Conclusion

Labels that disappear after iOS 18 are almost never deleted; they are hidden, unsynced, or stuck in an outdated app index. Set them to Show and Show in IMAP on the web, confirm them in the app’s label settings, then update or reinstall Gmail to rebuild the list if needed. Once all three layers agree, your labels and the emails inside them should be exactly where you left them.

Frequently Asked Questions

Did iOS 18 delete my Gmail labels?

No. Labels live in your Google account, not on the phone. An update can hide them in the app or interrupt sync, but the labels and their emails remain visible at gmail.com on a computer.

Why do my labels show on desktop but not on iPhone?

The usual cause is label visibility. A label set to Hide on the web, or not set to Show in IMAP, will not appear in the app. The app may also be holding a stale label list, which signing out and back in will rebuild.

Where is the labels menu in the Gmail iPhone app?

Tap the three-line menu button at the top left of the inbox and scroll down past the standard folders. Labels appear in their own section, roughly in alphabetical order, with nested labels shown under their parent label.

Will reinstalling Gmail delete my emails or labels?

No. Reinstalling removes only the local app and its cached data. Your emails, labels, and settings stored in your Google account download again when you sign in. You will just need to redo small preferences such as notification choices.

How long should label sync take after signing back in?

Small accounts rebuild in a few minutes on Wi-Fi. Very large mailboxes can take considerably longer to show full label counts and older messages. Keep the app open, stay on Wi-Fi, and let the initial sync finish before judging the result.