Amrik Majumdar

2025 · with a partner

SAFEY

I built SAFEY with a partner to help people experiencing domestic violence assess risk, make a safety plan and find resources. SAFEY stands for Safety Assessment and Resource Platform.

Opening a safety app may itself be unsafe for someone experiencing domestic violence. SAFEY opens disguised as an everyday app, a calculator or a notes app, to keep its purpose hidden.

The code SAFEY code on GitHub, MPL 2.0 license

What anyone else sees

The app behind it

From our demo video, slightly sped up: the disguise (here a notes app) unlocking with a PIN, and the risk check, safety plan and emergency screen behind it.

What stays on the device and what leaves

Stays on the phone

  • The PIN
  • The safety plan
  • The chosen disguise
  • How long it waits before hiding
  • The main screens, saved in the browser so they open without an internet connection

Leaves the phone

  • The optional chatbotsends what you type through SAFEY’s server to an outside service: Cerebras, a hosted AI model.
  • Calls and textsopen the phone’s own apps. Preparing a message does not send it.

None of this protects you from someone who already has your unlocked phone. SAFEY is a student project, not a guarantee of privacy or personal safety.

Read the code and its limits.

Inside the app

Stealth mode

The settings let you choose how to unlock SAFEY, how long it waits before hiding again, and which disguise it uses.

SAFEY hides itself when no one has touched it for that long. The default is five minutes, which can be too long or too short, depending on who else is in the room.

Resources

Resources are grouped by category: hotlines, shelters, legal help, counseling, financial help, child services and more.

Settings, where the PIN, the disguise and the auto-lock time are chosen.
The resource list, with a call button for each hotline.

Built with a partner

Winner, 2025 Congressional App Challenge, Virginia’s 11th District

We built SAFEY as a progressive web app, a website that can be installed like an app.

Me holding the Congressional App Challenge certificate beside the SAFEY poster and a laptop showing SAFEY
At House of Code in the U.S. Capitol, April 2026, where I presented SAFEY.