The Secret Billionaire Grandpa — Watch Free Online (2025)
An old man the family treats like a freeloading burden is quietly the founder of the empire they're fighting over — and he's decided to find out who actually deserves it.
- Genre
- Hidden Identity
- Episodes
- 80
- Free episodes
- 8
- App
- ShortMax
- Rating
- Year
- 2025
Where to watch The Secret Billionaire Grandpa free
We don't have an embeddable stream for The Secret Billionaire Grandpa yet — so we send you straight to the source. The first 8 episodes are free on ShortMax; watch them there, then earn coins via daily check-ins and rewarded ads to unlock the rest.
Watch The Secret Billionaire Grandpa on ShortMax →All episodes
| Episode | Status | Watch |
|---|---|---|
| Episode 1 | Free | ShortMax → |
| Episode 2 | Free | ShortMax → |
| Episode 3 | Free | ShortMax → |
| Episode 4 | Free | ShortMax → |
| Episode 5 | Free | ShortMax → |
| Episode 6 | Free | ShortMax → |
| Episode 7 | Free | ShortMax → |
| Episode 8 | Free | ShortMax → |
| Episodes 9–80 | Unlock with coins | ShortMax → |
Is The Secret Billionaire Grandpa worth watching?
A fun inversion of the hidden-tycoon trope from the patriarch's side. ShortMax keeps the family-politics knives out. The will-reading payoff is gold.
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Frequently asked questions
Is The Secret Billionaire Grandpa free to watch?
The first 8 episodes of The Secret Billionaire Grandpa are free to watch on ShortMax. To watch all 80 episodes you can unlock the rest with coins on ShortMax — and those coins can be earned free through daily check-ins and rewarded ads, or bought.
How can I watch The Secret Billionaire Grandpa without paying?
Watch the 8 free opening episodes on ShortMax, then earn free coins via daily check-ins, rewarded ads and limited-time free-unlock events to unlock more. Some episodes may also appear on ShortMax's official YouTube channel.
What app is The Secret Billionaire Grandpa on?
The Secret Billionaire Grandpa is available on ShortMax, which you can download free on iOS, Android, Web.
Last updated 2026-06-08. Episode counts and pricing reflect ShortMax's freemium model and may change. Short Drama Free links to official sources and does not host video.