An Android calendar that merges Google, Outlook, Exchange, iCloud and calendar links into one agenda, briefs you on every meeting, and keeps your notes and AI on your phone.
Everything happens on the phone. No Plait account, no Plait server.
Reads the calendars Android already syncs (Google, Outlook and Exchange, Samsung, iCloud through CalDAV), calendar links (.ics) with repeating meetings expanded, and Google Calendar directly. Switch accounts and calendars on or off.
Morning, Midday and Evening cards. The morning card shows what's ahead, midday shows what's done and what's left, and the evening card shows time spent in meetings, which meetings still need notes, and a look at tomorrow with free focus time.
Guests and their answers, About this meeting in a short paragraph from the invite (or a careful one-line guess from the title), a summary of your notes, and one-tap Join for Teams, Meet, Zoom and Webex, including links hidden behind Outlook Safe Links.
For meetings you organise: edit details, reschedule, cancel one occurrence or delete the series. For meetings someone else organised: reply Going, Maybe or Decline. Works for phone calendars and Google, and guests are notified.
Voice with a live transcript while you record, even with the screen off. Write. Photo, read into copyable text, Arabic included. List, a checklist for agendas and follow-ups.
Notes, photos and lists from one meeting carry forward to the next meeting with the same name, with the decisions from last time and the follow-ups still open.
Searches meetings, transcripts, written notes, photo text and emails, in English and Arabic. With an AI chosen, Plait expands your question into related words and names, then answers from your notes and shows its sources.
A 30-second plan before each meeting: the goal, what to remember and what to raise. Plait suggests tasks from your voice and photo notes and reminds you of the ones you add. Follow-ups can be marked done or booked into a free slot.
A reminder before each meeting says what it is for and has a Join button. It also shows on a paired Wear OS watch, and an evening nudge lists the meetings that still have no notes.
Share a meeting as a PDF, Markdown or text, or send your notes to a teammate. Sync between your phones through a folder you already use (Drive, Dropbox, Nextcloud, Syncthing), encrypted on the phone.
Type a sentence with who, when, how long and where, and the new-meeting form fills itself in. Find a time lists the free gaps across your calendars for the length you need.
Export everything as one file, optionally sealed with a passphrase, and import it on a new phone. Importing only adds what's missing, and never replaces or deletes anything.
Resize the widget and the layout adapts. It shows the same day brief as the morning card, with the meetings handed over by the app, so it matches Home for every calendar.
Choose the engine in Settings. Models download once (even with the app in the background), show their size first, are never downloaded twice, and can be deleted to get the space back. Nothing is sent to a cloud AI.
Automatic writing (day summary, prep, About) waits until the screen has settled, then runs on the smallest installed model, so a big model never slows the app.
One switch in Settings rebuilds the whole app in the other style. Both follow light and dark mode, with pure black for OLED screens and a reduce-animations option.
Kotlin and Jetpack Compose, release-built with ahead-of-time profiles, covered by 299 unit tests.
| Layer | Technology |
|---|---|
| Language and UI | Kotlin 2.4, Jetpack Compose, Material 3 1.5 (expressive components), Navigation ComposeAndroid 8.0 (API 26) to Android 16 (API 36) |
| Glass | Kyant Backdrop: backdrop blur and lens refraction |
| Calendars | Android CalendarContract (read and write), Google Calendar API, an iCalendar parser with RRULE expansion |
| Language models | LiteRT-LM 0.18.1, MediaPipe tasks-genai 0.10.35, ML Kit GenAI Prompt (Gemini Nano) |
| Speech | Whisper through sherpa-onnx for the live words and the final transcript, voice-activity detection with noise-adaptive thresholds |
| Text in photos | ML Kit Text Recognition (Latin), Tesseract 4 (Arabic) |
| Search | Word index plus a MediaPipe text embedder for meaning, with query expansion by the chosen model |
| Backup and sync | AES-256-GCM, key from PBKDF2-SHA256, sealed 1 MB chunks; merge by adds and tombstones so a sync can't lose a note |
| Widget and alerts | RemoteViews size-mapped layouts, exact alarms, a microphone foreground service |
| Speed | Release build with profileinstaller, a single-canvas month grid, and still backgrounds when glass is off |
No account, no analytics, no ads, no server of its own. Recordings, notes, photos and models stay in the app's storage. The network is used only for calendar links, Google Calendar if you connect it, model downloads you start, the sync folder you choose, and a check for new versions of Plait on GitHub (at most twice a day, nothing about you is sent, and it can be switched off).
Plait servers, accounts and ads.
First, download plait.apk from the latest release on your Android phone (Android 8 or newer).
plait.apk for 64-bit phones. On an older 32-bit phone, take plait-armv7.apk.Then open it. If Android asks, allow your browser or file manager to install apps.
Tap Use my phone's calendars and allow access. Every account on the phone appears straight away.
Optional: add calendar links or Google in Settings, and pick an AI model under Settings → AI.
Braid your calendars into one day.
Plait is made by one person. Following on X is the best way to say thanks and to hear about new features first. Bug reports and ideas are welcome in the issues.
