Another tidbit worth explaining is that, while Total Commander for Android is free to use and contains no ads, its Play Store ...

Root Explorer has a handy "Mount RW" button, which re-mounts such read-only partitions for writes, but Total Commander doesn't seem to offer this functionality.

Android：米Lifehacker編集部お気に入りのWindowsファイル管理ツールの一つ『Total Commander』に、この度パワフルなAndroid版が登場しました！ ユニークなデュアルペインビューやその他の機能を、Androidにももたらしてくれます。

Android: Total Commander is one our favorite alternative Windows file managers, and now there's a powerful version for Android as well, which brings a one-of-a-kind dual-pane view and a host of ...

Yes, Total Commander for Android is not only real, but already quite impressive, and yes - it has root support!