In one sentence? TikTok for grownups. It's a great and easy-to-use app where we can easily record our videos, generate posts from them for our other platforms and even download them to use them elsewhere.
We can create our own topics but we're also being proposed with a ton of topics according to our profile and content, so it's amazing to not even have to come up with new content, we can simply answer existing ones.
Also, we can invite others to give us their point of views.
Conclusion. A great place to be and IMHO, the next big thing on the web
