The Content: A short, high-quality video/article series revealing one key "secret sauce" feature of the Extra app/product in each installment, with a clear incentive tied to sharing.

1. Creates Exclusivity & FOMO By calling it a "Sneak Peek," you make the audience feel like they are getting early, privileged information. This triggers a desire to be "in the know" and encourages them to sign up so they don't miss future exclusive updates.

2. Demonstrates Immediate Value The content isn't just a teaser; it directly shows a tangible benefit (e.g., how the product solves a problem like poor credit). This is crucial for fintech, where people need to understand the practical advantage. It shifts the perception from "just a waitlist" to "this is a tool I need."

3. Activates Virality/Referrals Tying a waitlist jump directly to sharing the content is a powerful growth loop. People don't just sign up for themselves; they sign up and share to help their friends (who also get an advantage) and, crucially, to help themselves get to the front of the line.

4. Builds Trust (Crucial for Fintech) Each piece of content that showcases a real, well-designed feature (even a prototype) builds confidence that the product is real, functional, and secure. This transparency is a key component for converting hesitant users in the financial space.

Extra's TikTok growth strategies should focus on viral, trend-based, and authentic storytelling, specifically by leveraging trending sounds, running branded User-Generated Content (UGC) challenges, and creating short, relatable skits that naturally integrate the product. Success would be measured primarily by Engagement Rate (Likes, Comments, Shares) and Reach and Awareness (Total Video Views and Follower Growth), alongside high Average Watch Time, to ensure content is both captivating and seen by the "For You" page algorithm.