Using your smartphone in London may incur data charges, so check your data allowance with your phone provider. You can cut costs by downloading any apps before you travel, and by using London's many wi-fi hotspots when you are out and about.
Alternatively, why not download our free London maps and guides in advance.
Visit London app - official city guide and offline maps
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TfL Oyster app
Download the TfL Oyster app on your smartphone to top up your pay as you go credit, buy adult-rate travelcards and check your balance. You can also view your journey history and enable notifications when your balance falls below £10.
Read MoreCitymapper London app
The Citymapper app simplifies public transport in London by providing up-to-the-minute information and multiple route options. Features include disruptions, offline maps, prices, taxi fares and even calorie burn counts!
Read MoreSantander Cycles app
Explore London with Santander Cycles' free app - also on Android - showing you bike availability and routes to the nearest docking station. Receive a bike release code to your phone and hire a cycle without using the docking station terminal.
Read MoreRiverside London app
From Lambeth Bridge to Tower Bridge, explore the cultural heart of London with the help of this free app for iPhone and Android. Includes event and restaurant listings and info on the best landmarks and attractions.
Read MoreNatural History Museum app
Use the Natural History Museum visitor app to navigate to hidden treasures and popular highlights, such as the famous Dinosaurs gallery, special exhibitions and the Cocoon experience. The app is updated regularly with details of events and exhibitions to help you make the most of your visit.
Read MoreMBNA Thames Clippers app
Download the MBNA Thames Clippers tickets app and purchase river travel wherever you are; no queuing or printing before you travel. Activate your ticket as you board and show it to the crew. You can also check live departure times.
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