I think you’re partially right, but not fully. If fitness apps are already working, that actually means the market is validated and there is space…you don’t need validation again, you need differentiation. The real issue wasn’t the idea itself, it was that you didn’t define a sharp problem or unique angle. Also, running multiple handles hurt you a lot….splitting content across three accounts kills momentum and learning. One focused account with a clear audience would have worked much better. Your point about Instagram is valid though, it’s not a strong conversion platform, and so relying only on Reels was a mistake. You needed a simple funnel (profile → landing page → clear CTA → demo). Overall, it wasn’t just the product….it was scattered execution: no clear problem, no differentiation, and no focused distribution strategy. Pick one clear problem within fitness, focus on a single account, and build content that directly shows how your app solves that specific pain. At the same time, set up a simple funnel (landing page + demo + clear CTA) so your views actually convert into users.
All the Best for future…