The TUI app is a comprehensive tool that allows users to browse and book holidays, flights, and TUI experiences. The app offers a range of features, including a holiday countdown, resort weather forecasts, and a flight tracker. Users can also access TUI experiences, from island-hopping days out to walking tours around ancient cities. The app's chat feature is available around the clock, 365 days a year, providing direct contact with TUI whilst on holiday.

The app's range of destinations includes Greece, Grenada, Ibiza, and Iceland, with a huge collection of hotels to suit all tastes. Users can add their booking to the app easily, with just their booking reference number, the surname of the lead passenger, and their departure date. The app also offers a range of holiday extras, including upgrading flights with Premium seating and Select Your Seat, pre-ordering champagne and chocolates, and booking travel money, airport parking, and hotels.

The app's travel checklist ensures users are ready for take-off, with a handy packing list to make sure nothing is left behind. Digital boarding passes are available for most flights, and users can check out the inflight food and drinks menu before they go. The app's chat feature allows users to connect with the 24/7 team whilst away, with transfer information and relevant flight information available. Users can also book TUI experiences from the palm of their hand, with tickets displayed on the app and emailed to them.

However, there are some instances when users will not be able to add their booking to the app, including Marella Cruise holidays, TUI River Cruise holidays, Crystal Ski Holidays, and TUI Tours. Overall, the TUI app is a helpful tool for holiday planning and management, providing a range of features and direct contact with TUI whilst on holiday.