To update Snapchat, you'll need to head over to the Google Play Store. Once you're there, search for Snapchat and click on the "Update" button. If you don't see the update button, it means you're already running the latest version!
Make sure your device is connected to Wi-Fi and that you have enough storage space available. You can check your storage by going to your device's settings and looking at the storage section. If you're running low on space, you might need to delete some apps or files to make room for the update.
