The Zello app had been downloaded 100 million times as of February 2017. Photo: Sergei Konkov

Walkie talkie app Zello tops iTunes chart in the US during Hurricane Irma – but it started life in Russia

More than 1 million downloaded the Zello app in just one day as Hurricane Irma approached

Topic |   Hurricane Irma

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The Zello app had been downloaded 100 million times as of February 2017. Photo: Sergei Konkov
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