ZDNET/NeptuneTikTok’s days in the US might be numbered, with the deadline for the company to either sell the app to a US company or shut down entirely coming up this Friday, Jan. 19. As a result, many US TikTokers are taking to the app to post videos with the overwhelming sentiment of “what’s next?”A TikTok user posted a video, that has since garnered 10.5 million views, asking people what app they will use as a TikTok replacement. To my surprise, many comments didn’t suggest China-owned platforms Lemon8 or RedNote, currently ranked #1 on the App Store. Rather, users recommended Neptune, an app that isn’t even out yet. Also: Why I don’t regret leaving X for BlueskyNeptune has a unique approach to social media. The biggest standout is its customizable algorithm, unlike YouTube, TikTok, and most other social media platforms, which have proprietary algorithms that users can’t control. It also has ghost metrics, meaning it doesn’t prioritize or showcase followers and prefers quality. Since the app is not yet out, you need to fill out a form and join a Discord server to get on the waitlist to become a beta tester, which could be an intimidating process if you’ve never done it before. I will walk you through how to do so below, and you’ll see it’s much simpler than you may think. The biggest perk is that you can reserve your username before the app even rolls out — a huge boon for content creators. More