Fill your bottle. The whole circle moves with you.
People find water in the app, venues gain visitors, reward partners gain customers, and cities, water utilities and companies get the data, and the means, to change the habits of residents and teams.
No fees. The water and the app are free.
Behind every refill is the same decision: tap water instead of water in a bottle.
Four ways to join the network
BottleChallenge works with venues, brands, companies and cities. Choose what fits you.
Cafés, restaurants, bars
Get on the map and gain customers who come in for water and stay for a meal.
For venuesCinemas, theatres, museums, brands
Turn your tickets and experiences into rewards people collect with EcoDrops they earned by filling a bottle.
For reward partnersCompanies and teams
Engage your employees in a shared challenge and get audit-ready data for your ESG report.
For companiesCities and public institutions
Put your public fountains on the map people use to find water, and see in the data where water is still missing.
For citiesLooking for water, not a partnership?
Get the app, find places with water near you, and collect EcoDrops for every bottle you fill.
BrainGreen Foundation
BottleChallenge is a non-profit project created purely for people and the planet. Its goal is to change one everyday habit worldwide: reaching for a refill instead of buying another single-use plastic bottle.