Unlock Viral Success: Discover the Top 9 Social Media Contest Tools That Experts Swear By in 2025
7. Vyper
Vyper is a viral contest tool that recently revamped its UI. I was impressed by the new Vyper 2.0 but, as with ShortStack, I’m still not convinced it’s worth the hefty price tag for most users.

It’s super expensive as its plans are geared toward brands, marketers, and agencies with big budgets rather than casual users.
The good news is they do offer generous usage limits (up to 30k or 120k leads per month, depending on your plan). And the app itself is great.
I particularly like the way the visual campaign builder is laid out. You can customize your whole campaign from the editor, including the contest page/widget, thank you page, rewards, actions, etc.