Does Low Power Mode turn off iPhone keyboard sound?
Low Power Mode throttles background CPU work and can make an animated backlight feel a shade less smooth, but a keyboard click is not an animation — it is one short system sound fired once per keypress, which is why Low Power Mode never reaches it at all.
The phone drops to 20%, the battery icon turns yellow, Low Power Mode switches itself on, and a small worry follows it: is the keyboard about to go quiet along with everything else that just got dimmed or paused? It is a reasonable guess. Low Power Mode visibly changes several things at once, and a keyboard click is one of the more constant sounds a phone makes, so it seems like exactly the kind of thing a battery-saving mode would reach for first.
What Low Power Mode actually does
It is a system-wide power posture rather than a single switch. Turning it on eases some of iOS’s own animations, pauses Background App Refresh, holds off automatic Mail fetching, lets some downloads wait, and trims background CPU activity generally, alongside other adjustments iOS makes on its own to stretch the remaining charge. It is not a blanket instruction sent to every app and extension telling each one to go silent or stop moving — it is a flag those apps can check, plus a handful of things iOS throttles on its own regardless of whether an app checks anything.
An animation and a click are not the same kind of work
A keyboard’s animated backlight is a loop: it redraws itself many times a second, for as long as the keyboard is on screen, whether or not you are actively typing. That ongoing loop is real, continuous CPU work, and it is exactly the kind of thing Low Power Mode’s background throttling can make feel a shade less smooth on an older or busier phone — covered in more detail in the companion piece on Low Power Mode and keyboard lighting.
A keyboard click is a completely different shape of work. It is one call to iOS’s system sound player, fired at the instant a key is pressed, and finished a fraction of a second later. There is no loop running between keypresses for anything to throttle — the moment the sound has played, the work is already done. Low Power Mode’s CPU throttling has nothing to catch here, because there is no ongoing process for it to slow down.
What actually decides whether you hear a click
Keyboard sound answers to exactly two things, neither of which is battery state: the ring/silent switch on the side of the phone, and the ringer volume rather than the media volume. Flip the phone to silent and every keyboard on it, Apple’s and any third-party one, goes quiet regardless of how much charge is left. Leave the ringer on and the click plays at full charge, at 20%, and in Low Power Mode alike, because none of those states touch the switch that actually gates the sound.
Why the two features feel like they should match, and do not
Lighting and sound live under the same “keyboard feedback” idea in most people’s minds, so it is natural to expect one setting to govern both. Under the hood they are built on entirely different mechanisms — one is a continuous drawing loop the keyboard extension keeps running itself, the other is a single lightweight system call the extension fires and forgets. Low Power Mode was built to reach into background CPU work like the first kind. It was never wired to individual sound effects, keyboard clicks included, the same way it was never wired to the camera shutter sound or the Mail “sent” chime.
Where Kibo fits
Kibo’s 17 key sounds use that same lightweight system sound mechanism as Apple’s own click — each press fires one short system sound and nothing more, with no ongoing loop for Low Power Mode to throttle and no Full Access required to play it. They sound identical whether the phone is at 100% or deep in Low Power Mode, because the only thing that was ever going to change them is the ring/silent switch, exactly as with any other keyboard. Kibo is free to download.
Frequently asked questions
Does turning on Low Power Mode make my keyboard go silent?
No. Keyboard sound is controlled only by the ring/silent switch and the ringer volume, neither of which Low Power Mode touches. A keyboard that was clicking before Low Power Mode turned on keeps clicking after.
Does Low Power Mode affect keyboard sound the same way it affects keyboard lighting?
No, and the reason is structural. An animated backlight is a continuous loop the keyboard keeps redrawing, which is the kind of background CPU work Low Power Mode can throttle. A keyboard click is a single short system sound fired once per keypress, with no loop in between for anything to slow down.
What actually turns off keyboard clicks on iPhone?
The ring/silent switch on the side of the phone is the direct one — flip it and every keyboard goes quiet. Settings → Sounds & Haptics → Keyboard Feedback → Sound turns the feature off entirely if you never want the click at all, in any battery state.
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.