Nutrify AI is a calorie‑tracking app that started posting last year on TikTok with three accounts.

Their creators are AI-generated gym girl personas, and most of their videos are simple slideshows about gym life, healthy habits, and nutritious food.

“You look so slim and toned! Here’s what my diet looks like.” → 332.9K views

But five months ago, one video broke out and hit 2M views, a before‑and‑after slideshow ending with a screenshot of the app.

“I’m gonna stop drinking protein shakes and see what happens.” → 2.2M views

And yet, the app still sits under 5K downloads.

For this niche, we’ve found many other formats that have proven their potential: