PrintCash with AI
EasySaaSFrontierClear niche and buyerAI model/API accessPayments via DodoPayment
Verified

NotebookLM Knowledge Base Extension

Kortex transforms Google NotebookLM into a dynamic, interconnected knowledge base. Capture everything, find anything, and never lose an insight again.

In plain English

Kortex is a browser add-on that turns NotebookLM, Google's notebook for uploaded documents, into a connected place to keep what you learn. You can capture notes and search them later, with a free version and a paid pro level. People pay because a useful idea is easy to lose inside a pile of documents. The AI does almost all of the organizing, the search, and the billing. The person running Kortex still checks quality, helps users, and reaches them through the browser add-on store.

Automation90%
Startup costNot disclosed
Time to first $Not disclosed
Monthly range*$3,384 MRR

~$3,384 MRR; $2,312 verified revenue last 30 days (TrustMRR/DodoPayment, Oct 27, 2026)

DifficultyEasy
SourceTrustMRR - Kortex-Notebooklm ↗

Operator: Yaksh Gandhi, Jill

Verified

Revenue independently checked: documents reviewed by a publication, or a public dashboard.

Not disclosed.

The tool stack

DodoPayment ↗
Per-transaction fee

Payments / merchant of record

 OpenAI API ↗
Pay per token

LLM / vision

 Chrome Web Store ↗
$5 one-time

Extension distribution

Prices are the vendors' published list prices as researched in Oct 2026 and change often — always check the vendor's pricing page.

Step-by-step setup

  1. Pick one annoying job inside a popular site or AI tool.
  2. Ship a focused browser extension that fixes it.
  3. Freemium with a paid Pro tier.
  4. Grow through Chrome Web Store search and reviews.

What's automated vs. the human 10%

The machine does

  • Core AI generation/analysis
  • Billing and onboarding

You still do

  • Product quality and support
  • Distribution and marketing
  • Compliance and edge cases

Overview

Kortex transforms Google NotebookLM into a dynamic, interconnected knowledge base. Capture everything, find anything, and never lose an insight again.

Operator: Yaksh Gandhi, Jill. Category on TrustMRR: Artificial Intelligence. Website: https://kortex-notebooklm.com/

Estimated split: about 90% of the work automated, 10% human.

Realistic income

TrustMRR (checked Oct 27, 2026) shows about $3,384 MRR and $2,312 in DodoPayment-verified revenue over the last 30 days, $231,447 verified over its tracked history. This is one operator’s result, often after months or years of work, and doesn’t predict yours. Check the live listing — numbers change.

Risks

  • Host sites can change their pages and break the extension.
  • Store policy changes and copycats.
  • Startup cost and time to first dollar are not disclosed.

*Income figures are illustrative ranges based on public pricing and typical outcomes reported by practitioners, not guarantees. Most new online businesses earn little or nothing at first. Not financial, legal or tax advice.

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