As Apple sells its 50 billionth iOS app, we'd like to hear about the smartphone and tablet apps you have come to depend on
The 50 billionth iOS app was downloaded some time on Wednesday. The app market has been a key part of the smartphone and tablet phenomenon of recent years, with people downloading everything from games to baby monitors. The lucky person who bought number 50 billion from Apple will receive a gift card worth $10,000 (£6,580) – small change when you consider Apple takes 30% of the revenue from all apps sold in its store.
Do you use mobile apps? Can you tell us about one that you would never have thought you needed, but now cannot live without? Maybe you use a running and fitness app to chart your progress. Perhaps you downloaded a sleep analyser that's part of your night-time routine. Did you buy an app with high hopes, only for it to be quite useless? Tell us about the apps you use, and the ones you find indispensable.