TikTok
TikTok
Private
META
TikTok (Private) vs Instagram (META) apps
TikTok and Instagram compete closely with similar product utility to follow other users' content. As the competition for attention and advertisers went on, Instagram adopted more product features that imitate TikTok such as short videos (Reels) and a shift toward more algorithm-informed feeds (versus content from friends).
TikTok vs Instagram: cross-app usage

Percent of TikTok users that use Instagram
Percent of Instagram users that use TikTok
Percent of TikTok users that use Instagram
Percent of Instagram users that use TikTok
TikTok vs Instagram app relative size analysis (Monthly users, US)

TikTok
Notes
Instagram was 2.9x the size of TikTok the most recent month, compared to 2.7x its size a year ago.
Additional app insights
Competitive intensity among top Social Media apps
Explore Social Media market dynamics and user engagement levels of top apps in the category.