Monitor competitor product changes automatically
Competitor Changelog Spy crawls rival websites on a schedule, detects feature changes using content diffing, and delivers a weekly digest straight to your inbox — so you never miss a move.
Start Monitoring — $29/moCancel anytime. No credit card surprises.
Automated Crawling
Puppeteer-powered scraping runs on a schedule — no manual checks needed.
Smart Diffing
Content diffing highlights exactly what changed — new features, pricing, copy.
Weekly Digest
Receive a clean email summary every week via Resend — no noise, just signal.
Simple Pricing
Pro Plan
per month
- ✓Up to 20 competitor URLs tracked
- ✓Weekly email digest via Resend
- ✓Full content diff history
- ✓Puppeteer JS-rendered scraping
- ✓Supabase-backed change log
- ✓Cancel anytime
FAQ
Which competitor pages can I track?
Any publicly accessible URL — pricing pages, feature pages, homepages, changelogs. Puppeteer renders JavaScript so even SPAs are fully captured.
How does the change detection work?
We snapshot page content on each crawl and run a diff against the previous version. Only meaningful text and structural changes are surfaced — not ad rotations or timestamps.
Can I cancel my subscription?
Yes, cancel anytime from your billing portal. You keep access until the end of your billing period with no questions asked.