Invest in Fudini

The dog wearable market is looking at the wrong problem.

Fudini is a collar sensor that learns one dog's normal day and flags when it drifts, with no GPS. We are raising a pre-seed round. Review what is built, read the build log, and request the deck.

Request the Deck

By email only.

LEARNS THEIR NORMAL— SPEAKS UP WHEN IT DRIFTS— EARLY LIST OPEN— LEARNS THEIR NORMAL— SPEAKS UP WHEN IT DRIFTS— EARLY LIST OPEN— LEARNS THEIR NORMAL— SPEAKS UP WHEN IT DRIFTS— EARLY LIST OPEN—
LiveiOS app on the App Store, free, in 8 languages
4behaviours our neural net classifies: sleep, walk, play, eat
200dog and cat guides, each with checked sources
0GPS modules. Bluetooth to the phone, by design
Mar 2026engineering build log published since, failures included
The Thesis

GPS is a feature.
Health is a
daily habit.

Most dog wearables are built around GPS — for the day a dog gets lost. We're building for every ordinary day: learn the baseline, flag the drift, skip the GPS.

Request the Deck
Concept render — production case
Why now

The pieces got
small and cheap.

Owners already pay for dog wearables

The category exists, and it is built around GPS and lost dogs. Day-to-day health, the thing owners worry about every day, is the open space.

A sensor no longer needs to be a computer

A low-power Bluetooth chip with a motion sensor sends raw movement to the phone. The neural net runs on our servers, so the collar stays simple and the model keeps improving after it ships.

Phones do the heavy lifting

iPhones sync Bluetooth devices in the background. No SIM, no cellular plan, no base station: the owner's phone is the gateway.

Progress

Execution over
promises.

The App

Live on the App Store today. Breed ID, AI Vet, and food matching are fully functional.

The Hardware

Working prototype: motion sensor syncing to the app over Bluetooth. 6-axis sensor syncing via background BLE.

The AI

Neural net trained with separate dog and cat models, classifying sleep, walk, play, and eat.

The Log

Engineering deep-dives published since March 2026, including what went wrong.

Read the Build Log

Transparent engineering.

Public Proof

Building trust
before hardware.

We are establishing authority in dog health organically. Our iOS app is live and useful today, and our library of 200 fact-checked guides provides rigorous, cited answers to owners.

Read the Guides View the App
The round

Raising
pre-seed.

To take the collar from a working prototype to a certified product. The amount and use of funds are in the deck.

  • Production enclosure and charging
  • Water, dust and radio certification
  • Real collar data to train the model on
  • Growing the early list through the live app
Roadmap

The path to
production.

We are working toward certification, finalising the production enclosure, and growing our free early list through the live iOS app.

Request the Deck

support@fudini.co

Denys Zarubin

Founder, based in Spain. Building the collar, the app and the model in public, and writing the build log.

Contact

support@fudini.co

Join the
early list.

Prototype phase. Not certified. Not for sale. No payment required.

You’re on the list. We’ll email you when the collar is ready. In the meantime, download the free Fudini app.