> In order to run and hot reload the app either on emulator or device, follow the [instructions](https://docs.flutter.dev/get-started/test-drive?tab=androidstudio#run-the-app)
##### Try to enable biometric authentication via either fingerprint or face recognition and try to login using one of them.
###### Was it possible to login using biometric authentication?
###### Is there a search feature that allows users to search for other users by username or other information?
###### Can users add contacts by searching for their username or scanning a QR code?
##### Search for any other user and try to create a chat and send him a message.
###### Do messages appear in another user's app?
##### Try sending video, audio, images in the chat.
###### Does the app support sending text messages, images, and videos?
###### Does the other user get all the files correctly?
###### Does the app indicate if the message has been read by the recipient? Can you see read receipts for your sent messages?
###### Can you see typing indicators when someone else is composing a message to you?
###### Can users edit the messages they have sent?
###### If a user edits a message, does the updated version replace the original message for all participants?
###### Can users delete the messages they have sent?
###### If a user deletes a message, is it removed from the conversation for all participants?
##### Check if the app include a secret chat feature where messages are encrypted end-to-end, meaning that the messages must only be visible to users, but not on the backend of the app.
###### Can users start encrypted one-on-one chats in secret chats?
###### Are all messages in secret chats encrypted using an end-to-end algorithm? (Ask the student to show you if necessary)
###### Does the app support both iOS and Android platforms?
