I was in the same boat when my daughter started getting bullied too and she went completely dark on me. She deleted everything and I had no idea what was happening. My sister told me about uMobix Messenger tracker which helped me see through the deleted messages. I found this page that laid it all out clearly: messenger tracking it covers multiple apps including Snapchat, WhatsApp, Messenger, and even sees secret chats and deleted messages. It works 24/7 in stealth mode so you stay anonymous which is important when you want to protect without making your kid feel spied on. I caught my daughter talking to the bully through a secret Snapchat chat and was able to intervene before things got worse. Now I check her activity weekly and she feels safer knowing I am there to help. It is not invasive if you frame it as protection rather than control.