CoNabo · Sharing between neighbours · Copenhagen
CoNabo
Sharing between neighbours

Share what you rarely use with the neighbours you choose.

Neighbours in the same building share the things they each use a few times a year: borrow it, co-own it, and buy new only when nobody nearby has one.

Try the prototype
Where we are: a clickable prototype with made-up data. Next we want to pilot with friends, then in one building.
How it works

Borrow free, give back. Own what you use a lot.

Join with a code from your building's board or an invite link, or start your own community.

1

Borrow

Borrow a neighbour's thing for free. The app suggests a thanks that fits it, so the owner never has to ask.

2

Own a share

Use it a lot? Own your part. Using it often is fine; leaning on a neighbour isn't. You get your own days, repairs are split, and the owner gets money back.

Move out: you sell it back
3

Co-buy

Buying something anyway? Buy it with neighbours and pay your part of the price.

Principles

How it works between neighbours

You choose who you share with

Not the whole building. You share with the neighbours you pick.

Private until you meet

Neighbours you haven't met see a track record, not your name or door.

A receipt, not a contract

Every thing has one registered owner. The app keeps a clear record of who paid what.

Fewer, better things

Sharing what already exists means less gets made.

We never hold your money

You pay each other, for example by MobilePay, and the other side taps when it has arrived. CoNabo keeps the record, not the money.

Meet in person

The first handover is face to face, and we encourage neighbours to meet before any money changes hands.

What we won't do

  • Ratings
  • A marketplace for strangers
  • Renting for money
  • Contracts or insurance
  • Chat or a feed
  • Ads
  • Delivery or storage
  • Splitting rent or bills
Why

Fewer things. Better things. Less waste.

58%of Danes already share, swap or borrow things. 48% say we should share more.Bolius/YouGov, 2021
17%of Danes know all their neighbours' names.Bolius/YouGov, 2023
755 kgof household waste per Dane in 2023. The EU average is 511 kg.Eurostat
CarePeople look after what they own and neglect what they only access. So we co-own.Bardhi & Eckhardt, 2012
39%of Danes know none or only a few of their neighbours. 8% know none at all.Bolius/YouGov, 2023
29.5%of Copenhagen homes are andelsboliger: 97,529 of 330,492. Each has a board.Københavns Kommune, 2021
60,400+items shared from 22 sites by Library of Things in London. Hackney's sites averaged 47 loans a week each.Library of Things, 2024/25
2026The EU right-to-repair directive had to be national law by 31 July.Directive (EU) 2024/1799

Copenhagen's waste strategy for 2025–2030 names sharing, but none of its initiatives helps neighbours use the same thing together.Ressource- og Affaldsstrategi 2030, theme 4

The market wants every flat to own a drill. Your building needs one.
Team

Who we are

Jakub Szura

Jakub Szura

Product owner who builds. Ran the AI product team at RISMA Systems. BSc Medialogy, Aalborg.

jakubszura.com ›
Martin Karlík

Martin Karlík

Software engineer building AI for image, text and audio. MSc Human-Centered AI, DTU.

LinkedIn ›
Géza Lőrincz

Géza Lőrincz

Backend engineer at Podimo, ex-Pleo. Helped scale Voi's scooter sharing in Aalborg. MSc, CBS.

LinkedIn ›
David Mockovsky

David Mockovsky

E-commerce and UX. MSc Medialogy, Aalborg, with design, VR and 3D experience.

LinkedIn ›