Open the App Store on iPhone or Google Play Store on Android
Search for TikTok
Tap Install or Get
Wait for the app to download and install
Open TikTok
Sign in with your phone number, email, username, or linked account
Use the Forgot password option if you cannot remember your login
Reconnect any linked accounts such as Google, Apple, Facebook, or Instagram
Allow any requested permissions if needed
Update TikTok to the latest version if prompted