YC welcomes GiveMeTap to the Winter 2015 batch: 

“Despite the growth in reusable water bottles, keeping them refilled is tough. Ironically, consumers either end up buying a plastic bottle of water, are forced to use a toilet to refill, or feel obliged to buy something from a store before asking for a refill of water.

GiveMeTap is a new graduate of the Y Combinator accelerator with a rather clever idea. It sells and produces stainless steel water bottles that you can use to get free water refills from participating local cafes and restaurants, which are located by using the GiveMeTap App (iOSAndroid). You just walk in, find the water station and fill up or ask someone at the counter. The mobile app will even track your water usage.

The really clever part of its model is that business owners are incentivized to join the network because they get free publicity, increased footfall — and here’s the tech part — access to data about how many new customers they are gaining because of the app. Obviously, people with the bottles are more likely to choose a GiveMeTap venue and purchase other goods there.”

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