Made duplicates of all my data on my phone – Sync - Secure cloud storage Review

This happened to me with MEGA too and I don’t know how to fix it, but when I start uploading photos/videos, it copies the data and stores it on my phone. I can see all the files on the website, but I have no idea why it duplicates everything taking up unnecessary space on my phone. In my opinion, completely defeats the purpose of the app.
Review by G.Jungers on Sync - Secure cloud storage.