What causes "Grammarly Keyboard Not Working on iPhone"?

Full Access not allowed - the keyboard types but can't check text iOS too old (current app supports iOS 17+) Keyboard list not refreshed after install (iOS 15.4+) Company MDM (MaaS360, AirWatch, Meraki, MobileIron) blocks third-party keyboards The app itself blocks third-party keyboards Password and payment fields always fall back to Apple's keyboard

How do I fix "Grammarly Keyboard Not Working on iPhone"?

1. Allow Full Access: Open Settings > General > Keyboard > Keyboards > Grammarly Turn on Allow Full Access 2. Refresh the keyboard list: Restart the iPhone Go to Settings > General > Keyboard > Keyboards > Add New Keyboard Add any other keyboard - Grammarly should then appear in the list 3. Switch to Grammarly with the globe key: Press and hold the globe icon on the keyboard Select Grammarly - the green G should appear top-left above the keys 4. Update iOS and the app: Check Settings > General > About for your iOS version Install iOS updates and update Grammarly in the App Store 5. Check for MDM or app restrictions: On a company phone, ask IT whether third-party keyboards are blocked If one app never shows Grammarly, that app likely blocks custom keyboards 6. Reinstall Grammarly for iPhone: Delete the app Reinstall from the App Store and re-enable the keyboard and Full Access

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Grammarly Keyboard Not Working on iPhone

Workaround available iOS, iPadOS Updated October 21, 2026

Quick answer

The Grammarly keyboard needs Full Access to check text and an iOS version Grammarly supports. Re-add it under Settings > General > Keyboard > Keyboards, allow Full Access, and switch to it with the globe key.

Most likely fix: Allow Full Access.

Symptoms

Grammarly missing from the keyboard list, the keyboard types but gives no suggestions, no green G above the keyboard, or Grammarly absent in certain apps.

Why it happens

Full Access not allowed - the keyboard types but can't check text
iOS too old (current app supports iOS 17+)
Keyboard list not refreshed after install (iOS 15.4+)
Company MDM (MaaS360, AirWatch, Meraki, MobileIron) blocks third-party keyboards
The app itself blocks third-party keyboards
Password and payment fields always fall back to Apple's keyboard

How to fix it

Try these in order — the most common fix is first.

1. Allow Full Access
1. Open Settings > General > Keyboard > Keyboards > Grammarly
2. Turn on Allow Full Access
2. Refresh the keyboard list
1. Restart the iPhone
2. Go to Settings > General > Keyboard > Keyboards > Add New Keyboard
3. Add any other keyboard - Grammarly should then appear in the list
3. Switch to Grammarly with the globe key
1. Press and hold the globe icon on the keyboard
2. Select Grammarly - the green G should appear top-left above the keys
4. Update iOS and the app
1. Check Settings > General > About for your iOS version
2. Install iOS updates and update Grammarly in the App Store
5. Check for MDM or app restrictions
1. On a company phone, ask IT whether third-party keyboards are blocked
2. If one app never shows Grammarly, that app likely blocks custom keyboards
6. Reinstall Grammarly for iPhone
1. Delete the app
2. Reinstall from the App Store and re-enable the keyboard and Full Access

This guide also covers

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