Instant, private translation — no signal, no account, no cloud.
PlainSpeak translates speech, text, signs, and menus entirely on your phone — built for the exact moments a language barrier is most dangerous to have: crossing a border, a disaster zone with no signal, a medical visit, a country where data is a luxury. Everything you say stays on your device. Nothing is ever sent anywhere.
The entire loop — open, speak, understand — happens on the phone in your hand.
No sign-up, no login, no setup screen standing between you and a translation.
Talk, type a message, or point the camera at a sign, menu, or document.
Translation happens on-device, streaming as you speak — no waiting on a network round-trip.
Not the audio, not the text, not a log of the conversation. It stays exactly where it happened.
60 features, built and tested — the ones that keep you safe and understood are free, permanently.
Two-way voice translation, streaming as you talk, with confidence flags on anything uncertain.
FreeSigns, menus, and documents translated in place. Snap-and-translate is free; live AR overlay is Pro.
FreeProHold the phone between you and someone else — it detects who's speaking which language automatically.
Free"I need police," allergy and medication alerts, legal-rights phrases — instantly accessible, even from the lock screen.
Free, foreverText-first conversation mode, large-text display, adjustable speech rate, and a sign-language reference.
FreeDownload what you need before you go. No connection required once a pack is on your phone.
FreeA reason to keep the app on your phone even between translations — genuinely useful, every day.
FreeWayfinding phrases for getting around, plus honest, low-risk cultural etiquette notes for wherever you're headed.
FreeProSave any translation, then review it with spaced repetition and practice saying it back against real audio.
ProAuto-detects the language you're speaking and visibly flags any translation it isn't sure about, instead of guessing silently.
FreeBeyond two people — round-robin conversation mode for 3 or more languages at once, for families, meetings, and negotiations.
ProStructured menu and document scans that come back as an organized, translated list — not raw text soup laid over a photo.
ProSave and favorite the phrases you use most, organized by trip or context, always one tap away — no digging through menus.
FreeProPaste in a message, compose a reply, or translate text shared in from any other app — no copy-paste dance required.
FreeOn-device processing, shown on screen, not just claimed in a settings page. No ads, on any tier.
FreeRoughly three in four features ship free, forever. Pro sells convenience and polish — never the ability to communicate.
The questions worth asking an app that promises this much privacy.
Yes — every free feature works with your phone in Airplane Mode. The only exceptions are optional: downloading a Pro voice model, or fetching current currency rates.
Everything happens on your phone. There's no account, no server, and nothing you say or type is ever sent anywhere — including for Pro features. You don't have to take our word for it: turn on Airplane Mode and it still works.
PlainSpeak uses each platform's largest on-device translation catalog — dozens of languages, not a fixed curated list. Each language pack downloads automatically the first time you translate a new pair, no manual download step.
Convenience and polish — live camera overlay, unlimited saved phrases and language packs, group conversation mode, structured document scans, and learning tools. Never the ability to communicate: every safety and accessibility feature stays free, permanently.
Anyone who's ever been stuck without a shared language — travelers, immigrants, mixed-language families — and especially people in situations where a data connection or an account isn't something they can count on: a border crossing, a disaster zone, a medical visit.
Right now, on Android — get PlainSpeak on Google Play. The iOS version has been submitted and is currently in review with the App Store; check back here for the download link once it's approved.