Vocabulary lists aren’t synched between devices

I started using LingQ app on my iPad but also downloaded the app on my Android phone. The vocabulary lists are not synched between them. E.g. there’s only 5 words on vocabulary list on iPad and over 100 on my phone. How can I combine them? Thanks

Are you sure that you don’t have any filters enabled on the Vocabulary page on iPad? Also, try to logout/login back to your account and check if you are logged into the same account on both devices.