In her latest business move, Williams has backed French startup WeWard.
WeWard is a free app that offers real-world rewards for walking.
The goal is to encourage people to be more active while benefiting from their daily movement.
Williams has invested an undisclosed sum in the company and will also act as an ambassador.
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The idea is to incentivise people to walk further and more often and it seems to be working.
While WeWard has not raised much capital itself, it has handed plenty of money out.
Story bySion Geschwindt
Sion is a freelance science and technology reporter, specialising in climate and energy.
