To use features like saving data to My Mapy, synchronization, rating, uploading photos, or activating the premium version, you need to be logged into a user account. You can sign in via Seznam, Google, Microsoft, or Apple, or create a new account. It is possible to use multiple accounts, but only one can be active at a time. For more information about accounts, login, and account creation, visit our Help section: Account and Login How to Sign In How to Create a New Account If you have any questions, feel free to ask our amazing users in the Community Support.