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Text, not pixels
Lucid asks Android’s accessibility tree what is at the point under the lens. It gets the exact string and its position, so the highlight sits on the words themselves and chat timestamps are left out.
Screen lens for Android
Translate what is on your screen, without leaving it.
Lucid is a small glass lens that floats over any app. Drag it over a message, a menu or a page; it reads the words underneath and hands you the translation in place.
Coming to Google Play
Read the privacy note
How it reads
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One line, not the page
The lens reads the single message, menu row or paragraph it is sitting on. It never widens to the block around it, so nothing larger than what you pointed at is read.
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Optional look mode
Photos, video and apps that hide their text have nothing to read. Look mode takes one still frame of the display, runs text recognition on it, and keeps nothing.
The promise
Your words stay yours.
- Only the text under the lens is read — never the rest of the screen.
- Lucid keeps no copy of what it reads and no history of translations.
- No accounts, no analytics, no advertising, no trackers.
- With the on-device engine, everything stays on the phone.
- With the online engine, only the line under the lens is sent to Google Translate.
Permissions, and why
Lucid asks for as little as Android allows, and every permission has one job.
- Display over other apps — so the lens can sit above the app you are in.
- Text access (accessibility) — so it can read the text under the lens. It is not used to control other apps, and it is granted once for the whole phone.
- Screen capture — optional, only if you turn on look mode; one still frame per read, in memory.
- Notifications — the one notice that keeps the lens running, with a button to turn it off.
Before you switch text access on, Lucid shows a plain-language note about what it reads and where that text goes, and asks you to agree first. Declining is fine — asking again brings the note back.
Still being built
Lucid is in its first release: Android only, because iOS does not allow floating overlays over other apps. If you would like to test a build before it reaches Google Play, write to privacy@grafizum.com.