SEO and marketing decision
Lanza-tu-app
A competent technical user can reproduce this product (a curated dataset + simple UI and export) in about a week and maintain it cheaply; there are no durable moats shown on the product page that would prevent replacement.
Visit website↗Built by Jon Kraayenbrink, who ships 7 products in this index
Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$50one-off30 h to build
$0/mo3 h/mo upkeep
No published price to break even against.
No open-source build does this yet
Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.
What a replacement has to do
- Provide a searchable/filterable list of launch platforms, each with metadata (Domain Rating, free/paid, follow/nofollow, direct submission URL); allow export/duplication to Notion or CSV.
What it still won’t have
- The original author's curation provenance: "La fui armando mientras lanzaba mis propios proyectos. No es una lista genérica — es el mismo Notion que uso yo."
- The author's claimed real-world results and backlink evidence: "La mayoría de los links que tiene AiSelfi... vinieron de estas plataformas — suficientes para llegar a DR 38"
- The bundled Notion template/duplication convenience: "Base de datos en Notion (duplica y guarda para siempre)"
- Existing social proof and testimonials shown on the sales page (e.g. "Vale cada centavo. Me ahorró semanas de investigación.")
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Lanza-tu-app does not publish a price we could read, so there is nothing to compare against. What building costs is below.
Money you would actually spend
Time you would spend
—
What you would spend
What we assumed
The verdict above measures whether you could build it. This one is only about money.
Runnable build prompt
Build a small self-hosted launch-platform directory using Next.js (React) + SQLite, deployed on Vercel or a small VPS. Core features in scope: importable CSV seed of ~200 entries, searchable UI, filters for Domain Rating / free-vs-paid / link type, direct submission URL buttons, CSV and Notion-CSV export, Stripe one-time payment gating for download, HTTPS, basic logging, and unit tests for data import and API endpoints. Out of scope: automated Domain Rating scraping jobs, large-scale SEO monitoring, or training ML models. Include error handling for broken submission URLs, input validation, and end-to-end tests for the paid-download flow.
How we checked
How the score was reached
- Build verdict base78
- 3 cited sources+3
- Evidence score81
The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.
How scoring works →Cited sources · 3
Every page the run actually retrieved.
- official productLanza tu app — product page
- official productLanza tu app — pricing claim
- official productLanza tu app — data contents
Integrity checks
What held up, and what did not.
