Do I need to download an app to watch The Heroic Life of a Billionaire Security Guard[DUB]?

No. It plays in any mobile or desktop browser, so there is nothing to install.

The Heroic Life of a Billionaire Security Guard[DUB] — Watch Free (80 Eps)

Where can I watch The Heroic Life of a Billionaire Security Guard[DUB] online for free?: All 80 episodes are free on dramatap and play straight in your browser — no app download and no account needed.
How many episodes does The Heroic Life of a Billionaire Security Guard[DUB] have?: 80 episodes in total.
Which app is The Heroic Life of a Billionaire Security Guard[DUB] originally from?: It was originally released on FlexTV.
Do I need to download an app to watch The Heroic Life of a Billionaire Security Guard[DUB]?: No. It plays in any mobile or desktop browser, so there is nothing to install.