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Q. How do I transfer my data when changing devices or reinstalling the app?

Before changing your device or deleting the app, you must register your 'Email Address' and 'Password' in the **[My Menu] > [Top right gear icon (Settings)] > [Data Transfer Settings]** menu within the app. After that, you can log in with the registered email via the [Continue with Existing Data] button at the bottom of the startup screen on your new device or reinstalled app, and seamlessly restore all your data including your profile, joined groups, and chat history. * ⚠️ **Important Notes**: * Once the transfer (login) is complete, all current temporary data you were using on the new device (such as joined regular groups, bookmarks, and chat history) will be permanently deleted and completely overwritten by your original linked account data. * However, if you had **created a Premium Group (as owner)** or made a **Premium Subscription (Tomo Plus)** while in a temporary state on the new device, these will not be deleted but safely merged (rescued) into your restored original account to protect your financial rights. (Note: If you have processed double payments on both accounts, you cannot cancel one within the app; you must cancel it directly from the store.) * For security and data integrity, logging in simultaneously from multiple devices with one account (multi-device login) is not possible. Completing a login on a new device will expire the authentication token and automatically log you out from the previous device.