Ramble

Talk at your phone. We'll make sense of it.

A voice-note app for people who think out loud. You ramble; it transcribes, structures, files, and answers back. The whole pipeline — speech recognition and the language model — runs on the device.

Android, Flutter.

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On-device by default

Ramble uses flutter_gemma for local inference and the platform's own speech recogniser for transcription. There is no backend, no account, and no API key. Your voice notes are not a training corpus for anyone, and the app works on a plane.

That constraint is the product, not a limitation to apologise for. Mobile data is metered where I built this, connectivity drops daily, and the phones around me are mid-range Androids — so "does it run without a network on hardware nobody would call fast" is the only benchmark that mattered.

What it does

• Record and transcribe — speech_to_text with a record-based capture path, wrapped so the OS recogniser and the local model are interchangeable behind one service.
• Structure it — the local model turns a rambling transcript into a titled note with a summary and tags, sorted into projects.
• Miko — the character at the centre of the app. Notes get a response, not just a filing.
• Reminders — if you mention a deadline out loud, it schedules a local notification.
• Export — share as text or render to PDF.
• Local storage — Hive. Nothing syncs, because there's nowhere to sync to.

Architecture

Services are split so that every external dependency sits behind a swappable interface — speech_service / os_stt_service for capture, local_llm_service for inference, storage_service for persistence. See docs/ARCHITECTURE.md for the full picture and docs/BUILD_REPORT.md for build notes.

lib/
  models/     note, project, miko_response
  services/   audio, speech, transcription, local_llm, storage, notifications, …
  screens/    onboarding, home, recording, note_detail, settings
  widgets/    shared UI
  theme/

Build

flutter pub get
dart run flutter_launcher_icons     # first time only
flutter run

Requires Flutter SDK ^3.9.2 and Android SDK 24+.

Related

• voicenote — the same idea on desktop, in Python, with Vosk for ASR and Ollama for structuring.

Status

Built 2026. Releases an APK; iOS is scaffolded but not built or tested.