SEO and marketing decision
Phantom
A competent developer can reproduce the core Chrome-extension audit and CSV export in ~28 hours and maintain it cheaply; the vendor's value-adds are product polish, paid-tier limits, and support rather than irreproducible moats.
Visit website↗Not priced
No pricing page we fetched carried a figure, so there is nothing to compare against. The build side is still real.
$50one-off28 h to build
$0/mo1 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
- Navigate to a Google Business Profile in Search or Maps, scrape profile fields (categories, reviews, photos, ratings), compute audit metrics (velocity/frequency), and export results as CSV or save an audit.
What it still won’t have
- Chrome Web Store hosting/visibility and established extension listing
- Polish and UX of existing product UI and charts
- Built-in credit/plan enforcement (monthly credits) and paid-tier features
- Priority support and a dedicated account manager (available on Advanced tier)
What remains hard
- Product polish and ongoing maintenance
First-year cost
No published price
Phantom 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 Chrome extension using TypeScript, React (for the popup UI), and Manifest V3 that audits Google Business Profiles on Google Search and Maps. In scope: content scripts that detect and scrape GMB fields (business name, primary/secondary categories, review counts/ratings, photos), client-side parsers that compute metrics (review velocity, photo upload frequency), a popup UI showing the metrics and simple charts, CSV export of scraped data, and local persistence of saved audits (localStorage). Out of scope: payments integration, multi-user hosted SaaS features, and an account billing system. Include error handling for DOM changes, unit tests for parsers, and end-to-end tests for the extension workflow.
How we checked
How the score was reached
- Build verdict base78
- 2 cited sources+1
- 3/3 assessment runs agreed+4
- Evidence score83
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 · 2
Every page the run actually retrieved.
- official productPhantom - GMB Audit Tool For Advanced Local SEO Insights
- official productFeatures - Phantom (pricing and plans)
Integrity checks
What held up, and what did not.
