Did you know, you can:

• Access your emails on the go and even add more than one account!
• Never miss another doctor's appointment with the easy-to-use calendar and online booking systems used by many local GPs.
• Find a parking space with the great AA Parking and NCP apps.
• Research a family holiday on tripadvisor.co.uk while your little one is at ballet or football.
• Start a weekly shop using the many supermarket apps out there.
• Use my Fitness Pal to kick start any weight-loss plans.
• Never had time to read a newspaper any more? Most dailies have an app so you can get your news on the go
• Check the train times using the National Rail app.
• Find your nearest baby-changing facilities using the NCT baby change app.
• Had lunch with a friend and need to split the bill? Try the new Barclays Pingit app to transfer your share direct to your friend's bank acocunt.

"Apps", or applications, can be used for almost anything from checking the weather to getting sat nav-style directions on your phone,' says Corin Allen from Three. 'They can be downloaded from the "shop" on your phone, such as Apple's App Store or Android's Marketplace.'