Does Eye Tracking work with a third-party keyboard on iPhone?
Eye Tracking moves a pointer with your gaze and selects with a dwell — the same tap a finger would make, wherever it lands, keyboard included. Here is how Snap to Item helps that dwell land on the right key, and the one case that still hands typing to Apple’s keyboard.
Eye Tracking is one of the newer additions to iOS accessibility, and it raises the same question every keyboard app eventually runs into: does this work with mine, or only with Apple’s own? The short answer is that Eye Tracking does not treat a keyboard as anything special. It was built to sit above the whole system, and a key is just one more thing on screen it can look at.
What Eye Tracking actually does
Turned on in Settings → Accessibility → Eye Tracking, it uses the iPhone’s front camera together with on-device machine learning to work out where on the screen your eyes are pointed — no external eye-tracking accessory or extra hardware required, which is what makes it different from the dedicated eye-tracking rigs this used to take. Setup is a short calibration, roughly a minute, where you follow a dot with your eyes as it moves around the screen so the system can learn how your gaze maps to on-screen position.
Dwell takes the place of a tap
Once it is on, an onscreen pointer follows your eyes around the screen, and Dwell Control — switched on automatically as part of Eye Tracking’s setup — turns holding that pointer steady on one spot for a moment into the equivalent of a tap there. Nothing about that mechanism cares what happens to be under the pointer when the dwell completes. A key on a keyboard is exactly as tappable, to Eye Tracking, as a Send button in Messages or a link in Safari, because from the system’s point of view a dwell is just a tap that arrived by a different route.
Snap to Item is why a keyboard still helps itself
Gaze position is not as precise as a fingertip, and Apple’s own answer to that is a setting called Snap to Item, which pulls the pointer toward whatever selectable element sits nearest to where you are actually looking rather than demanding you land exactly on it. That only works because iOS already knows where the selectable elements are — the same accessibility tree that VoiceOver reads aloud and Switch Control scans through. A keyboard that draws each key as a distinct, labelled button gives Snap to Item something to pull toward; a keyboard drawn as one solid custom image, with taps handled by hand and no separate elements marked out, gives it nothing to snap to, which turns a naturally imprecise gaze into a much harder target. Building keys as ordinary labelled buttons costs a keyboard nothing extra, so it is rarely what actually separates one third-party keyboard from another here.
What still hands typing to Apple’s keyboard
A secure text field — a password box, a card number entry — still forces iOS’s own keyboard onto the screen the instant it gets focus, exactly as it does with Eye Tracking off. That swap happens at the same system level regardless of which input method is driving the phone, so no keyboard, Apple’s or otherwise, has a way to opt out of it, and Eye Tracking has no setting that changes it either.
Where Kibo fits
Kibo draws its keys as ordinary, labelled buttons, the same as Apple’s own keyboard, so Eye Tracking’s pointer and Snap to Item find and select them the same way — no different from typing with a finger, just aimed with a gaze instead. There is no Eye Tracking setting inside Kibo because none is needed. None of this touches Full Access either, which Kibo reads only for the Copy word, Copy line and Paste buttons on its own toolbar; typing itself, in any of Kibo’s 30 languages, needs it for nothing. Kibo is free to download.
Frequently asked questions
Does Eye Tracking work with a third-party keyboard on iPhone?
Yes. A dwell is still a tap landing wherever the pointer is at the time, and iOS does not distinguish which app or keyboard put whatever is under it on screen. A key on a third-party keyboard is exactly as reachable as one on Apple’s own.
Does a keyboard app have to add special support for Eye Tracking?
No, as long as it draws its keys as ordinary, labelled buttons rather than one solid custom-drawn image — the same requirement VoiceOver and Switch Control already have. That is what lets Snap to Item pull an imprecise gaze onto the right key; the keyboard itself has no Eye Tracking setting to add.
Does Eye Tracking need Full Access for a keyboard?
No. Eye Tracking is an Accessibility setting; Full Access is a separate per-keyboard permission that only governs things like a keyboard’s own clipboard buttons. Neither one affects the other.
Try it on your own keyboard
Kibo is a free custom keyboard for iPhone with real mechanical key sounds, a wardrobe of themes and RGB backlight effects. No account, no ads, and it works with Full Access left off.