If a keyboard declares it collects no data, does my typing stay on the device?

That is what the developer is stating, and it is plausible: a keyboard can do layout, autocorrect and prediction entirely on-device with no network access at all. But the claim is unaudited, like every declaration here. Checking whether the app requests internet access, and whether its source is public, tells you more than the label alone.

Why does no keyboard declare collecting Messages?

Play's Messages category covers messages an app sends, receives or stores itself — the mail in a mail app, the chats in a chat app. Text you type into a different app is not classified there. Keystroke-derived data, where a keyboard declares any, appears under App activity instead, which is why that row deserves more attention than its bland name suggests.

Keyboards

Google Play shows a data-safety declaration one app at a time. Here are 4 keyboards side by side, so the differences are visible rather than remembered. Categories none of them declares are hidden.

A keyboard sits between you and every other app: search queries, messages, notes, card numbers when autofill does not fire. Nothing else on your phone has that reach, which makes the shape of these declarations surprising. No keyboard below declares the Messages category at all, so that row is missing from the grid entirely — not because keyboards do not see your text, but because Play's Messages category means messages the app itself handles, not text you typed into somebody else's app. Whatever a keyboard learns from your typing surfaces elsewhere: under App activity, where 'other user-generated content' is the sub-type to look for on the Play listing itself, and under Audio if it offers voice typing. Read App activity, Audio and Device or other IDs as the substantive rows here.

What each developer declares their app collects and shares
Data category	Gboarddeclares 4 collected, 0 shared	Grammarly Keyboarddeclares 3 collected, 1 shared	Microsoft SwiftKeydeclares 6 collected, 0 shared	Simple Keyboarddeclares 0 collected, 0 shared
Location	Not declared	Not declared	Collected	Not declared
Personal info	Not declared	Collected	Collected	Not declared
Photos & videos	Not declared	Not declared	Collected	Not declared
Audio	Collected	Not declared	Not declared	Not declared
App activity	Collected	Not declared	Collected	Not declared
App info & performance	Collected	Collected & shared	Collected	Not declared
Device or other IDs	Collected	Collected	Collected	Not declared
Declares data encrypted in transit	Yes	Yes	Yes	Not declared
Declares you can request deletion	Not declared	Yes	Yes	Not declared
Source	Play listingVerified 2026-08-07	Play listingVerified 2026-08-07	Play listingVerified 2026-08-07	Play listingVerified 2026-08-07

Questions about keyboards

If a keyboard declares it collects no data, does my typing stay on the device?: That is what the developer is stating, and it is plausible: a keyboard can do layout, autocorrect and prediction entirely on-device with no network access at all. But the claim is unaudited, like every declaration here. Checking whether the app requests internet access, and whether its source is public, tells you more than the label alone.
Why does no keyboard declare collecting Messages?: Play's Messages category covers messages an app sends, receives or stores itself — the mail in a mail app, the chats in a chat app. Text you type into a different app is not classified there. Keystroke-derived data, where a keyboard declares any, appears under App activity instead, which is why that row deserves more attention than its bland name suggests.