Why are big companies not developing apps like Hello and TikTok?

It's not that big companies are not developing but the issue here is they are yet not able to generate the loyal following that TikTok had.

Companies developing TikTok like App

· Instagram developed Instagram Reels

· YouTube developed YouTube Shorts

· Google developed Tangi

· MX Player Developed TakTak

So there are definitely big companies that are trying to capture user's attention and target the market that was built by TikTok by developing an app like TikTok or offering similar features within their existing app.