This app is designed to be used in conjunction with Toyota, Lexus, and other compatible car models that have digital key functionality. For a list of supported car models, please refer to the official website. With the digital key feature, your smartphone becomes the key to your car. You can easily share your car key with family and friends using your smartphone. Sharing can be done through QR code scanning when you are in close proximity, or via SMS when you are apart. The app also allows you to set restrictions on the shared key, such as specifying the duration of the sharing period or limiting certain operations. This provides convenience and peace of mind, whether you are temporarily lending your car to a family member or giving a friend who doesn't have a driver's license access to only lock and unlock the doors. Before using the app, there are some preparations required depending on whether you are the car owner or a share user. If you are the car owner and want to use your own digital key or share it with family and friends, you need to register for a TOYOTA account, have a T-Connect or G-Link subscription, and sign a digital key usage agreement. If you are a share user and want to receive the digital key for a family member or friend's car, you need to register for a TOYOTA account. TOYOTA account is a customer authentication service that allows you to safely and comfortably use various services provided by Toyota's websites. You can register for a TOYOTA account on their website. The app is compatible with certain smartphone models. For a list of confirmed compatible devices, please refer to the official website. Please note that the app is designed for smartphones and may not function properly on tablet devices.