A phone interface built for how you actually think.
StareBrain is the errand agent for Android, now in its final stretch before launch. Giving it a job is a hand-off: you say what you need, it shows you the plan, then works through your real apps one step at a time. At the Stop Line, the point before anything you can't undo, it stops and asks. For people who'd rather hand off the menus, swipes and app-hunting than do them. Almost ready. Launching soon.
StareBrain is built for power users and busy professionals.
People who need their phone to move faster than menus allow.
It's not designed to replace your apps. It's designed to replace the steps.
One errand. One yes. One result.
Everything else is waste.
Three principles guide everything we build.
Built for Intent
We're not building another button-tapping interface. We're building a system that understands what you're trying to accomplish and does it. Your phone should speak your language, not the other way around.
Security First
You see the plan before it runs, and texts always ask first. The agent pauses before irreversible taps, and it is blocked from gallery and file apps. Permissions are granular and revocable, and your history stays on your phone.
Simple by Design
Complexity creeps in through poor scope. Every capability has to earn its place — if it doesn't make your day measurably faster, it doesn't ship.
Not commands. Workflows.
StareBrain is built around agentic behaviors—multi-step workflows that reason about context, wait on conditions, and chain actions together. Not just automation, but intelligent decision-making on your behalf. One command can trigger dozens of steps. One confirmation for everything.
Handle schedule conflicts
"John just double-booked me" → Checks both calendar events, identifies the conflict, drafts a reschedule message to John, waits for his reply, updates only when confirmed.
Throw a surprise party, quietly
"Throw Maya a surprise party on the 14th" → Finds her free window without tipping her off, polls guests in a private thread, shortlists venues under budget, tracks RSVPs and who's bringing what.
Watch & respond to conditions
"Text me when the contractor replies, then add the quote to my budget sheet" → Monitors conversation, triggers action only when condition is met, chains multiple steps.
Negotiate a bill down
"My internet bill went up — get it lowered" → Pulls the last six bills, asks for a retention rate, compares rival offers, follows up on replies, and holds any contract change for your yes.
Stand in while you're offline
"I'm offline till 6 — handle my inbox" → Triages by sender, queues replies in your voice for one-tap approval on landing, holds anything involving money or deadlines, and hands you a summary.
Rescue a cancelled flight
"My flight just got cancelled" → Finds your booking in your email, compares rebooking options, drafts messages to your hotel and whoever's picking you up, then presents the whole plan for one confirmation.
Close out an apartment move
"I'm moving out on the 30th" → Finds every utility and subscription in your email, drafts the cancel/transfer notices, books the walkthrough around your calendar, and reminds you about the keys.
Chase the stragglers
"Chase everyone who hasn't replied to the invite by Friday" → Tracks replies, nudges the quiet ones at sensible hours, keeps a running headcount, and stops once it's settled.
Chase a late invoice
"Get Dan to pay invoice 214" → Reminds on a schedule, firms up the tone on Friday, stops the moment payment lands, and flags anything pointed to you before it goes out.
Dispute a double charge
"That charge looks wrong" → Spots the duplicate in your bank alerts, gathers the receipts, drafts the dispute to the merchant, and tracks the reply.
Built on proven technology.
We chose approaches that are fast, secure, and proven in production. Native mobile performance. Sophisticated language understanding. Distributed infrastructure built for reliability. No experimental tech, no unproven patterns. Only tools trusted by mission-critical systems.
Mobile
- Native Android performance
- Kotlin and Jetpack Compose
- Accessibility-based screen reading
- Local history and memory (Room)
- Sign-in token in encrypted storage
Backend
- Asynchronous architecture
- PostgreSQL-ready, SQLAlchemy database layer
- Multi-provider language-model reasoning
- Step-by-step agent loop (one action per call)
Infrastructure
- Containerized deployment
- Cloud-hosted services
- TLS encryption in transit
- Hashed passwords, expiring sign-in tokens
Your phone stays yours.
We built safeguards into the layers that matter. You see the plan first, texts always ask, and the agent pauses before irreversible taps. Permissions are granular and revocable, data is encrypted in transit, and your history stays on your phone. You can see exactly what it did, and exactly what we still have to harden. See exactly where your data goes →
Confirmation Always
Not a single action executes without your explicit approval. You see exactly what will happen in plain English before it does.
Granular Permissions
You grant only what you need, only when you need it. Revoke any permission instantly. No bundled access, no hidden capabilities.
Files Stay Off-Limits
StareBrain never asks for access to your photos, videos or documents, and its agent is blocked from gallery, files and cloud-drive apps by a block list built into the app. StareBrain does not read, upload or send them. (Your screen log, the text of what's visible on screen while a task runs, is separate; see our Privacy Policy.)
Local by Default
Your history (kept 7 days), permissions and remembered facts live on your phone, and your sign-in token sits in Android's encrypted storage. To understand a command, its text and your screen log pass through our server to AI providers. StareBrain does not send your photos, videos or documents.
Nearly there. How we got here.
This is the path from backend setup to beta launch — a compressed 3-month sprint. The app and backend work end to end. We're in the final phase now: security hardening, in-app accounts, performance testing and beta onboarding.
Phase 1: Foundation
- Backend setup & database
- LLM integration
- Account system (API)
- Command processing pipeline
Phase 2: Mobile
- Mobile development
- UI implementation
- Backend integration
- Device capabilities
- End-to-end testing
Phase 3: Polish
- Security audit
- Performance testing
- In-app sign-up & accounts
- Error handling
- Beta onboarding
- Launch preparation
Launch targets — not yet measured in production
Following along keeps you informed.
StareBrain is almost ready. We're sharing progress, updates, and honest reflections about what we're learning as we build. Subscribe to get notified when we hit milestones.
Built by Manan Shah