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EchoMind for Android

Say it once.
It's kept.

A private second brain that listens for you. What was said becomes notes, tasks, people and a journal, all worked out on your phone.

Download for Android Follow on GitHub

One email when the first version is out. That's all.

● on-device AI Hindi + English Android 12+
The problem

Most of a day is said out loud. It's gone by evening.

Good morning. The wifi password is on the fridge. Priya's birthday is on the 2nd. Did you eat? Call me back about Sunday lunch. Parking is on level B2. Haan, haan, I'm coming. Read The Psychology of Money, you'll like it. The meeting moved to 4. Deck by Thursday, pitch on Friday. Dahi le aana on the way home. Rahul is moving to Pune in December. Okay, bye.

Cloud recorders fix that by uploading everything you hear. EchoMind keeps what matters on the phone, and lets the rest go.

01 · Listen

It listens, quietly.

A small service runs in the background, cuts the silence, and pauses itself when the phone is warm or the battery is low. A coral dot means it's recording, and you can forget the last few minutes at any time.

02 · Transcribe

Every word, on the phone.

On-device speech recognition in English, Hindi and Hinglish. Speakers are grouped and labelled, and your own voiceprint tells “you” from everyone else. Search finds रंगरेज़ when you type rangrez.

03 · Organise

Tasks and notes write themselves.

What you promised becomes a task with a sensible reminder: an hour before the call, the evening before an early start. Say you've done it and it asks, “Sounds done?”

04 · Remember

People, remembered.

Names, roles, how you met, and a running story for everyone you talk to. Next time, the details are already there.

05 · Reflect

Your day, written down.

A journal for every day, a productivity score with a reason, and your own rating. Voice check-ins ask a question at night and file your spoken answer.

Ask

Your memory, answered.

Ask about anything you've said or heard. Answers cite the moments they came from, and the assistant can act: add a task, plan your day, change a setting.

Runs on Gemma on the phone by default, or on your own Claude, Gemini or OpenAI key if you choose. Keys are encrypted and never logged.

Ask Gemma · on this phone

Ask anything you've said or heard

Privacy

Teal stays. Amber leaves.

In the app, teal means “on this phone” and amber means “leaves the phone”. Nothing turns amber until you flip a switch. Try it.

  • No accounts, analytics or ads.
  • API keys are encrypted with Android Keystore.
  • Internet is used for model downloads and the features you turn on. Nothing else.
● Speech, speakers, sound tags and Gemma: on this phone
Cloud ledger
10:42Transcribed 38 s · on device
10:433 items made · Gemma on device
Battery temperature Working · 36.0°C

Drag it. Past the limit, transcription and AI wait until the phone cools down.

  • Minimum battery20%
  • CPU threads on battery / charging2 / 4
  • Pause in Battery SaverOn
  • Work, then rest45 / 10 min
Kind to your phone

It knows when to stop.

The Governor decides when heavy work may run. Every limit is a slider with colour-coded danger zones, and an emergency thermal level always stops work.

Need results now? “Ignore limits for 15 minutes”, then it goes back to looking after the phone.

And also

Small things, done well.

Read-aloud

About 90 natural, open voices, Hindi included. Bluetooth-aware, so it asks before using the speaker.

Songs, kept apart

When you sing, the clip is saved on its own. Lyrics never turn into notes or tasks.

Calendar and plans

Your device calendar, prep notes before events, and month, week and day plans built from your memory.

Voice check-ins

Scheduled questions, answered out loud, filed into the day's journal.

Eight widgets

Listen, Mic, Tasks, Agenda, Notes, Day, Ask and Quick actions, each resizable and themeable.

Hindi and English

Hindi, English and Hinglish are recognised, with Devanagari searchable in Latin letters.

Recordings library

Keep the audio of a conversation and choose how long. Expired clips are swept automatically.

Nothing hidden

A developer screen shows the engine, the queue, every Governor decision and the database.

Be the first to hear.

EchoMind's first public version is close. Leave your email and you'll get one message when it's out.

Download for Android Follow on GitHub
  • Android 12+
  • 8 GB RAM recommended for on-device AI
  • Models download in the app
Questions

Good to know.

Does my audio leave the phone?

No. Recognition, speaker grouping, sound tagging and the default AI (Gemma) all run on the phone. Cloud AI, web search and song naming are each off until you turn them on, and every request they make is written to a ledger you can read.

Which phones does it run on?

Android 12 or newer. A phone with 8 GB of RAM or more is recommended for the on-device language model; speech recognition alone runs on less.

Won't it drain my battery?

The Governor pauses heavy work when the phone is warm, the battery is low or Battery Saver is on, and you set every limit yourself. Silence is cut before anything is transcribed.

Is recording people okay?

Tell people when EchoMind is listening, and check the law where you live; some places require everyone's consent. You can pause it, or forget the last few minutes, at any time.

Does it understand Hinglish?

Yes. English, Hindi and the mix of the two. Hindi in Devanagari is transliterated for search, so you can type it in Latin letters.

What does it cost?

Nothing. It's open source under the MIT licence, with no accounts, analytics or ads. If you use your own Claude, Gemini or OpenAI key, that provider bills you directly.

Say it once. It's kept.

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