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Hoyfo — hope you’re fine

Know they're okay. Without asking every day.

Help families know their loved ones are okay.

Hoyfo turns the CCTV cameras and sensors a home already has — doors, windows, smoke, motion — into a few meaningful updates a day. No new hardware. No storage subscription. No surveillance.

Get the Hub

A day, end to end

Nothing happened today. That's the update.

Tuesday at a house in Thrissur, as a family in three cities received it. Four parts of a day, each one a sentence you can read in four seconds.

  1. A glass of chai on a table, lit from behindMorning05:00 — 11:00

    The kitchen light came on at 6:10.

    Ten minutes earlier than usual, which is how you know it is a good day. Tea on the veranda by half past. The gate opened once, for the milk.

    • Kitchen light — 6:10
    • Veranda, tea — 6:34
    • Gate opened — 6:52
  2. Weathered hands holding a bunch of carrots against a red wallAfternoon11:00 — 16:00

    Medicines came to the door at 11:20.

    The chemist's boy, the same one as always. Lunch a little late. The house is quiet between two and four, the way it has been every day this month.

    • Delivery received — 11:20
    • Kitchen active — 13:05
    • Quiet hours — 14:00
  3. Two people walking home together down a lit street at nightEvening16:00 — 21:00

    Dad returned home at 6:40.

    Back from the walk he has taken since he retired. Two neighbours at the gate for a while. Lights on across the front of the house by seven.

    • Gate — 6:40 pm
    • Visitors at gate — 6:44 pm
    • Front lights — 7:02 pm
  4. One lit window in an otherwise dark building at nightNight21:00 — 05:00

    The house settled at 10:15.

    Doors checked, lights down, nothing moving after quarter past ten. Hoyfo rests until morning. Nothing is read, nothing is recorded, nothing is sent.

    • Doors closed — 10:09 pm
    • House settled — 10:15 pm
    • Hoyfo resting — 10:30 pm

Compatibility

Works with the cameras and sensors you already own.

Most homes with older parents in them are already instrumented — CCTV at the gate, a contact on the front door, a smoke alarm in the kitchen. Nothing new goes on the wall, and the recorder keeps doing exactly what it does now.

Check your model
A security camera on a wall against an open sky
Cameras
CP Plus, Hikvision, Dahua, UNV, TVTand anything that exposes an ONVIF profile or a plain RTSP URL.
Protocols
  • ONVIF
  • RTSP
  • Zigbee
  • Z-Wave
  • Matter
  • MQTT
  • Bluetooth LE
Sensors
  • Door contacts

    Gate and front door, opened and closed

  • Window sensors

    Left open after dark

  • Smoke & heat

    Alarm state, battery, last self-test

  • Motion (PIR)

    Rooms waking and settling

  • Gas & LPG

    Kitchen leak detection

  • Water leak

    Bathroom and utility

  • Temperature

    Heat that an older body shouldn't sit in

  • Smart plugs

    The kettle, the geyser, the fan

No cameras at all? Hoyfo runs on sensors alone. You lose the snapshots and keep everything else.

Ask about your setup

The architecture

How Hoyfo works.

Four steps, and only one of them touches the internet. The interesting design decision is what is missing: there is no place in this diagram where video is stored.

Inside the house

  • Gate camera
  • Front door contact
  • Hall motion
  • Smoke alarm

Step 01

Cameras & sensors

Whatever the house already has — CCTV at the gate, a contact on the front door, the smoke alarm in the kitchen, a motion sensor in the hall. Nothing new is mounted, nothing is rewired.

Step 02

Hoyfo Hub

A small box beside the recorder reads the streams and the sensor traffic locally, and turns both into short, plain sentences. Frames are discarded as they are read.

Outside

Sealed envelope

AES-256-GCM

Step 03

Encrypted mailbox

Sealed envelopes are posted to Guardian Cloud, which can route them but cannot open them. No video is ever uploaded.

Hoyfo

Medicine delivered at 11:20 am.

Step 04

Family

Your phone holds the keys. The envelope opens on your device and becomes a line you can read in four seconds.

No frame of video crosses the sealed line.

The long version
A silhouette standing in a bright doorway at the end of a dark hall

Frame read locally · Sealed · AES-256-GCM

Privacy

We built it so we couldn't look.

Every company in this category promises not to look at your video. We removed the possibility instead — which is a harder thing to build and a much easier thing to trust.

  1. 01

    Video never leaves your home.

    Streams are read on the Hub, in the house, and the frames are discarded as they are read. There is no upload path for footage, because we never built one.

  2. 02

    Guardian Cloud cannot read photos.

    What we route is a sealed envelope. We can see that it exists and where it is going. We cannot open it — not for a partner, not for a subpoena, not for ourselves.

  3. 03

    Only your family holds the keys.

    Keys are generated on your Hub and shared directly with your family's devices. If every server we own were taken tomorrow, not one photograph would be exposed.

Read the technical note

Stays in the house

  • Camera streams
  • Every video frame
  • The model that learns the routine
  • Rooms you switched off — never read at all

Leaves the house, sealed

  • A short sentence
  • A timestamp
  • A confidence value
  • Up to three stills, only if your family enabled snapshots

All of it sealed with AES-256-GCM before it touches the network.

Families

The distance didn't change. The worry did.

In most families one person carries all of it. The daughter who calls. The son who books the flights. Hoyfo gives the whole family the same short thread, so nobody has to be the only one paying attention.

A mother holding her baby in the archway of a family house

“My parents don't answer every call anymore. Now I don't worry.”

Two missed calls used to mean a bad afternoon. Now I open one line before my first meeting and the rest of the day belongs to me again.

NNikhil V.London / Thrissur
  • A family sharing a long table outdoors in late afternoon light

    “I stopped calling to check. I call to talk.”

    The checking used to eat the whole conversation. We spent ten minutes establishing that everything was fine and then hung up. Now we just talk.

    Sana K.Singapore / Lucknow
  • A man in profile, mostly in shadow, lit by a single window

    “Appa said yes because nobody was watching him.”

    He refused a camera in the house for years, and he was right to. What changed his mind was that the video stays in his house. He shows people the box now.

    Meera J.Melbourne / Madurai

Up to eight family members. No extra cost, ever.

Products

The app is free. The Hub is the only thing you buy.

There are two things to buy and one of them is optional. Everything else is already installed in your parents' house.

Hoyfo Hub

One-time. Family app included, for up to eight people.

₹ 12,900

  • Reads up to 8 camera streams over ONVIF / RTSP
  • Zigbee, Z-Wave, Matter, MQTT and Bluetooth LE radios built in
  • All inference on-device — no video leaves the house
  • 5 W typical draw · fanless · Ethernet or Wi-Fi
  • Local queue holds 72 hours through an internet outage

Hoyfo Hub Lite

For sensor-only homes, or a second house.

₹ 7,400

  • Sensors only — no camera ingest
  • Zigbee, Z-Wave, Matter and MQTT
  • Same encryption, same family app, same daily lines
  • Palm-sized · plugs straight into a socket
  • Pairs with a full Hub if cameras are added later

The family app

Free, for iOS and Android. Up to eight family members on one household, at no cost.

Download

Questions

The ones people actually ask.

Ask us anything

Get the app

Scan to download Hoyfo — free for up to eight family members.