For independent researchers · Substack · deep dives · theses

Spend time on judgment. Not on reconciling footnotes.

When you publish a number — Owner Earnings, adjusted FCF, normalized EPS — the method should be explicit and repeatable. Nastapp helps you pull primary sources, lock the rule you actually use, and double-check the calc before you hit publish.

You decide. Not tips. Not another stock trading app.

Request early access See how it works

Researchers reviewing filings and notes together

How it works

Three steps

A double-check layer for people who already write research — not a tip feed, not a terminal to live in.

  1. 1
    Start from a claim e.g. “Owner Earnings ≈ $X” for a name you’re writing up.
  2. 2
    Choose the rule Table A vs Table B style choices — saved as your method.
  3. 3
    Compare Same ticker under your rule vs another explicit method. Disagreement is a feature.

What it is

Research infrastructure under your voice

Your edge is judgment and writing. Nastapp is the layer underneath: sourced inputs, explicit methods, fewer silent spreadsheet errors. We don’t replace your voice.

The work behind a good thesis is invisible — and slow. Filings are long; adjusted metrics aren’t standardized; re-checking an old thesis means reconstructing the spreadsheet from memory. Serious readers can tell when the method is fuzzy. So can you.

What you get

  • Primary sources first
  • Explicit rules
  • Reconcile before publish

What you don’t get

  • Buy lists
  • Chart day-trading chrome
  • “AI said buy”

Built for independent researchers

  • You publish theses (Substack, blog, letters)
  • You care about filings and adjusted metrics
  • You want consistency across write-ups
  • You’d rather tighten method than chase hot tips

Not a fit if you

  • Day-trade or live on tip groups
  • Want someone else to pick stocks
  • Need a Bloomberg terminal replacement
  • Want “AI said buy” answers

Early access

Building with independent researchers

Not a mass consumer launch. Small group first — people who already publish research and care about method.

  • $100 USD/month after launch
  • Cancel anytime
  • No tip emails

Optional later: show your method or briefs to readers — on your terms. The product stands alone as a research tool.