Author Archives: Johanna

For more info on Johanna check out our team page.

The Meteoric rise of a down-to-earth app

Why another speed test? Among other features, our flagship app OpenSignal tests the speed of your internet connection. So why create another app to do that? Well, we don’t really see Meteor just as a beautiful speed test (though we agree … Continue reading

Posted in app, Other | Leave a comment

MWC 2017 Fiesta Time! Parties & Networking Events

It’s that time of the year once more: MWC is upon us and OpenSignal will be there! Find us in the UKTI Innovation Pavilion, or meet us at one of the many parties taking place in Barcelona — we’ll try … Continue reading

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WifiMapper and the wonders of data collection

If you’re already enjoying of WifiMapper on your phone, you might know that it is the world’s largest Wi-Fi community – of which you are now part! Indeed, WifiMapper is powered by a database of more than 650 millions Wi-Fi … Continue reading

Posted in Competition, Crowdsourcing, WifiMapper | Tagged , , , , | 1 Comment

Smartphones in the classroom 3: Learning from our apps

If you’re a frequent user of our apps, chances are that you chose OpenSignal to get better coverage and find the best carrier in your area, or downloaded WeatherSignal to check the temperature and pressure before leaving home in the … Continue reading

Posted in Crowdsourcing, Education, OpenSignal app, Sensors, WeatherSignal | Tagged , , | Leave a comment

What smartphone batteries know about São Paulo’s weather

A couple of years ago, our ginger CTO (yes, that’s how he likes to introduce himself!) was having a look at battery temperature data collected by OpenSignal users when he was struck by an unexpected discovery…insert suspense music here. What … Continue reading

Posted in Academic, Crowdsourcing, Sensors, WeatherSignal | Tagged | 1 Comment

Smartphones in the classroom 2: Teaching Physics

Do you remember the time when cellphones’ only use was to make and receive calls while out and about? Mobile phones were originally created to do that, no more, no less. Similarly, sensors in smartphones were first put there to … Continue reading

Posted in Education, Sensors, WeatherSignal | Leave a comment

How WeatherSignal can contribute to forest fire monitoring

Knowing that a paper was published using our data always gives us a thrill. We enjoy the fact that our work can meaningfully contribute to different fields of research. Above all, we see it as proof of the value of … Continue reading

Posted in Academic, Crowdsourcing, Sensors, WeatherSignal | Leave a comment

Smartphones in the classroom 1: A new educational tool

“Now children, close your textbooks and take out your cell phones.” Such an utterance would have been preposterous when I was a high school student – and mind you, this was the late nineties/early two-thousands. But of course, ten years … Continue reading

Posted in Education, Other, Sensors | Leave a comment

Microphones: the potential uses of a common sensor

At OpenSignal we love sensors. We’ve written several blogposts on the different types to be found on Android and iPhone devices and have recently published a comprehensive report on the topic. But when thinking about sensors, one of the most basic … Continue reading

Posted in Mobile Trends, Sensors, Uncategorized | Tagged | 2 Comments

Our academic partners

At OpenSignal we like to promote and keep track of all research related to our fields of interest. If, like us, you speak crowdsourcing, mobile sensor technology and big data, you might want to check out some of these papers … Continue reading

Posted in Academic, CrisisSignal, Open Signal Maps community, WeatherSignal | 3 Comments