If I can offer some unsolicited feedback:

  - This space is very crowded - to consider this app, I need to know a differentiator much sooner. Is it the streak? Is it the zero-knowledge? What makes this different from the 20 other options? It seems like the value prop here is "this is a simple journal that tracks whether you wrote today or not, and that is zero knowledge." If there's more, it's missing from the marketing here.
  - There's some confusion in the branding. You're using the word "guru", as well as the word "jumble" as a verb. Pick a tagline and a CTA, and stick to those.
  - I like the point you are trying to make about the value of writing itself... but how does your app take advantage of that value prop? Can I capture those insights in a unique way? Otherwise, I can take your value prop and accomplish it in the writing app I already have an account and history with.

I think you're on the way to something good here, but it's a little too confusing to get me to convert.