Download
This beta isn’t on Google Play. It’s available directly from this page. Open this page in your phone’s browser, and then use the button below to download it.
About the beta
This version is still being tested. Things may change, and some bugs may remain. If you notice anything, let us know.
What it does
- Switch to the STT4U keyboard in any text field, tap the microphone, and speak. STT4U turns your speech into clean text
- Check and edit the cleaned-up text before it’s typed
- Translation, read aloud, the dictionary, and cleanup styles work the same way as in the Windows version
- You can use the same OpenRouter API key as the Windows version
Meeting notes mode (experimental)
Open it from the STT4U icon on your home screen. It’s a separate screen from the keyboard: record a meeting and get the minutes.
- Recording keeps going with the screen off or while you use other apps (up to 3 hours by default). Use the built-in microphone, a Bluetooth headset or a speakerphone. Tap Bookmark to mark an important moment
- Transcript: speech is transcribed every 5 minutes while you record. Each line has a time and a speaker; you can name speakers or pick them from the participants (speaker separation depends on the recognition model; Scribe v2 and MAI-Transcribe 2 support it)
- Minutes: when you stop, STT4U writes clean text, a summary, decisions and to-dos (with owner and due date), and a review (open questions, other angles). If you don’t give a title, the AI names the meeting from its content. Any section can be redone while keeping the earlier version
- During the meeting: tap Summary and review so far to get a summary up to that point and a review from the focus you choose (gaps, support, critical). The results stay in the transcript at that time
- Sharing: a single tabbed HTML file (with Word, PDF, Markdown and text inside), or Word or PDF on their own. You can also share a version translated into the language set in Settings (the transcript isn’t translated)
- Import: load an audio file recorded elsewhere and get the same minutes
- Quick record: if the meeting has already started, skip the setup and start recording right away
The meeting notes mode is experimental
A beta update may erase saved meetings (the data layout is still changing, and we rebuild it rather than migrate). Export anything you want to keep as HTML or Word.
Transcription and minutes are billed to your own OpenRouter account. A one-hour meeting typically costs a few tens of yen to around a hundred yen or so, depending on the recognition and writing models. Recommended combinations are in the Meeting notes tab of Settings.
How to install
Android shows safety warnings for any app installed from outside Google Play. These warnings aren’t specific to STT4U; they appear for every app that isn’t on the Play Store. Follow these steps. The exact wording varies by phone and Android version.
- Tap Download the APKIf you see a warning such as “This type of file can harm your device,” tap Download.
- When the download finishes, tap OpenYou can also open it from the notification or from your browser’s downloads.
- Turn on Allow from this sourceIf you see “For your security, your phone currently isn’t allowed to install unknown apps from this source,” tap Settings, turn on Allow from this source (Install unknown apps), and then go back.
- Tap InstallWhen asked “Do you want to install this app?”, tap Install.
- If Play Protect shows a warningIf you see “Blocked by Play Protect” or “Unknown app,” open More details and tap Install anyway. If you’re offered Scan app, it’s fine to scan it first.
After installing
You can turn Allow from this source off again for peace of mind. Turn it back on when you install the next beta.
Some phones, such as OPPO models, may ask for your device password or account before installing.
The first time you open it
The app walks you through these steps.
- Turn on the keyboardSelect Open the Settings app, and turn on STT4U voice input (on some phones it’s under Additional settings or System settings, in Keyboards and input methods).
- Choose it as your keyboardSelect Choose keyboard and pick STT4U. You can switch keyboards any time afterward.
- Microphone permissionTap Allow microphone. Audio isn’t stored on your phone; it’s discarded after being sent for recognition.
- OpenRouter API keyPaste your API key and save it. See the Getting started guide for how to create one (you can use the same key as the Windows version).
When a new beta comes out
Download the new APK from this page and install it the same way. It installs over the old version, and your settings and key are kept.
Where your data goes
The Android version has no developer server either. Your recorded voice and transcribed text are sent through your own OpenRouter account to the provider of the AI model you choose. Keyboard audio isn’t stored on your phone.
In the meeting notes mode, the recording is kept on your phone (in the app’s private storage) and deleted 7 days after transcription (you can change this to never keep it or to keep it forever). Transcripts and minutes stay on your phone and only leave it when you share them.