Schoolgirl Tomisin Ogunnubi is a teenager with a passion for programming.
Three years ago she created My Locator, an app which helps children who are lost.
The mobile app, which is available on the Google Play Store, has already been downloaded more than 1,000 times since its debut in 2016.
"The app can also link you to Google Maps and show you the directions from your current location to the location that yo...
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