Do I need to download an app to watch Reborn as a Mech: Forced Evolution of a Mad Pilot?

No. It plays in any mobile or desktop browser. The VIP pass is bought through Telegram, but watching itself needs nothing installed.

Watch Reborn as a Mech: Forced Evolution of a Mad Pilot Free Online — All 41 Episodes

Where can I watch Reborn as a Mech: Forced Evolution of a Mad Pilot online for free?: The first 5 episodes are free on dramatap and play straight in your browser — no app download and no account needed. The remaining 36 episodes unlock with a VIP pass.
How many episodes does Reborn as a Mech: Forced Evolution of a Mad Pilot have?: 41 episodes in total.
Do I need to download an app to watch Reborn as a Mech: Forced Evolution of a Mad Pilot?: No. It plays in any mobile or desktop browser. The VIP pass is bought through Telegram, but watching itself needs nothing installed.