NuKey
Download
Docs/Getting started

Install and switch NuKey on

Add NuKey to iOS, allow Full Access, and get the globe key pointing at it. About two minutes.

Before you start

NuKey is a keyboard for iPhone and needs iOS 18 or later. It also runs on both screens of iPhone Duo. Install it from the App Store and open the app once, so iOS knows the keyboard exists.

Good to knowProofreading and Rewrite need iOS 26 or later and Apple Intelligence turned on. The two Liquid Glass boards need iOS 27 or later; on iOS 18 to 26 the other six boards are available. Everything else works on any supported iPhone.

Add the keyboard in Settings

iOS keeps new keyboards behind a couple of switches. The Set Up card at the top of NuKey walks you through it with four buttons (Open Settings, Add New Keyboard, Enable Full Access and Start Typing). By hand, it is:

  1. Open the Settings app and go to General → Keyboard → Keyboards.
  2. Tap Add New Keyboard… and choose NuKey from the list.
  3. Tap NuKey in the keyboards list, then turn on Allow Full Access (see below for why).
  4. Open any text field, press and hold the globe key, and pick NuKey.

What Full Access is for

NuKey types perfectly well without it. Full Access unlocks the parts that need to talk to the app or the system:

HapticsKey taps you can feel. iOS only allows custom haptics from a keyboard with Full Access.
Your settingsThemes, lighting and options travel from the app to the keyboard through it. If settings stop syncing, check it is still on.
LanguagesThe language switcher on the board reads your chosen languages this way.
StatsTyping speed and key-usage totals reach the NuKey app through it.
Clipboard and webhooksReading an answer a Shortcut copied, and posting to a webhook, both need it.

NuKey's App Store privacy disclosure states that the app collects no data, with or without Full Access. See Privacy, iCloud and Full Access for the detail.

Type something

Back in NuKey, the Try It card opens a field so you can switch to the keyboard and test it straight away. Hold the globe, choose NuKey, and type. From here, head to A tour of the app to start shaping it.

TipCan't see NuKey when you hold the globe? Go back to Settings and check it appears under Keyboards. If it does, force-close the app you were typing in and open it again.

Something unclear or out of date? Tell us on the feedback board, or use Support inside the app and we will fix the guide.