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DINAcon Awards Nominee

Project Start: 01. April 2015

Project Category: #4 Open Data

Swimming in the river Aare is one of Bern's most popular summer activities. The website and mobile apps delivers you the most important water and weather informations directly into the palm of you hand.

Packaged into a straightforward design with nice typography, is used by thousands of people daily during summer time. Since its launch in 2015 the popularity has steadily grown.

The basis of the app is Open Data: The water measurements are provided by the Swiss Federal Office for the Environment (FOEN/BAFU), along with weather measurements by MeteoSwiss. An API by is providing simplified access to the same data for other apps and websites.

The significance of the project has been confirmed by the city of Berne which contacted with a feature request providing additional safety related information for swimmers. Implementation is under way in 2019. is run as a non-profit hobbyist project by four bernese designers & developers.

Project Business Case

This is a hobbyist project and non-profit.

Project Importance is providing relevant and important information for a popular, but potentially dangerous sports activity. Every year multiple people drown in the river Aare, maybe the information about the current water flow and temperature can help to prevent more accidents.

Project Impact

...people would feel sad, but similar projects would spring up. The data is in the open, the technical complexity is rather low.

Project Facts

License: Other

License Description:

The project code is proprietary, but access to the data is free on and

No license is given for the data, some license restrictions apply to data provided by the Swiss government.

Maturity: We are well established and many people are using it

Number of Contributors: 4

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