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I can't make a thread there, dunno why :(
Every time I click on Thread buttom, nothing happens, don't make any thread.

When you finish typing your Thread wait for it be indexed at the bottom of your Thread. When everything fully appears you can click on Thread button to post it

Oh, let me try. There is any app for LeoFinance on mobile? Like this one that Im using now on my phone for Ecency

No app for now, search leofinance.io it opens with Thread interface.

Trying now