TfL Oyster and contactless is a free travel and navigation app for iPhone users developed by Transport Trading Ltd. This app lets users manage their adult Oyster and contactless cards on the go. It has a number of useful features that include topping up pay as you go credit, buying adult rate 7 Day, Monthly and Annual Travelcards, and Bus & Tram Passes, viewing Oyster card and contactless journey history, checking contactless payments, and checking pay as you go balance and season tickets.

The app also allows users to check if they have any incomplete journeys and enables notifications to alert them when their pay as you go balance falls below a certain amount or their Travelcard is about to expire. Users can see the date, time, and cost of their journeys from the last 8 weeks, which helps them keep track of their spending. The app requires access to the user's camera to scan their payment card, but the pictures are not stored, and users can also enter the card details manually. However, the app does not support Oyster photocards or discounted tickets, and it is not compatible with jailbroken devices for security reasons.