Documentation-based comparison
changedetection.io versus Similarweb
Compare documented scope and conditions. Unknowns remain unknown; different billing units do not establish a cost winner.
What the evidence answers
A reading of reviewed official documentation for changedetection.io and Similarweb. It is not a hands-on test, a ranking or a recommendation of one product.
Price
- changedetection.io From $8.99/mo · earlier capture, recheck before relying on it
- Easy Subscription: $8.99 monthly
- Similarweb From $199/mo · earlier capture, recheck before relying on it
- Competitive Intelligence: $199.00 monthly
- Competitive Intelligence: $1,500.00 annual ($125/mo equivalent)
- Competitive Intel & SEO & AEO: $399.00 monthly
- Competitive Intel & SEO & AEO: $3,996.00 annual ($333/mo equivalent)
- Competitive Intel, SEO & AEO & Ads: $649.00 monthly
- Competitive Intel, SEO & AEO & Ads: $6,504.00 annual ($542/mo equivalent)
A complete like-for-like price comparison is not established; the next checks say what is missing.
Documented for both
- Type of work
- changedetection.io Page change monitoring
- Similarweb Traffic and market analysis
Limits to check
- changedetection.io One real Chrome browser for JavaScript pages is included; more browsers are bolt-ons.
- Similarweb Premium features require a custom package priced by the sales team.
Not verified yet
No reviewed evidence for either product on monthly checks and integrations.
Documented for one product only, shown in the table below: changedetection.io: monitored pages, shortest check interval and alerts and delivery; Similarweb: source families, exports, seats and history kept.
Not verified means our reviewed sources do not establish it. It does not mean a product lacks the capability or that it costs nothing.
Next steps
- Recheck changedetection.io's prices on its official pricing page: the reviewed price evidence is older than its review window.
- Recheck Similarweb's prices on its official pricing page: the reviewed price evidence is older than its review window.
- Ask changedetection.io about monthly checks, integrations and seats; our sources do not establish them yet.
| Requirement | changedetection.io | Similarweb |
|---|---|---|
| Pricing | From $8.99/mo | From $199/mo |
| Who it is for | Hosted web page change monitoring from the official provider of the open-source changedetection.io project. Checks run in the provider's cloud browsers; there is nothing to install. Verified Oct 11, 2026 · changedetection.io home page with the hosted subscription | Competitor traffic research for researchers, analysts and marketers: share of traffic, competitors' growth drivers and competitor moves. Verified Oct 11, 2026 · Similarweb Web Intelligence pricing, Entrepreneurs plans |
| Coverage limits | One real Chrome browser for JavaScript pages is included; more browsers are bolt-ons. Verified Oct 11, 2026 · changedetection.io home page with the hosted subscription | Premium features require a custom package priced by the sales team. Verified Oct 11, 2026 · Similarweb Web Intelligence pricing, business packages and FAQ |
| Source families | Not applicable to page change monitoring |
|
| Type of work | Page change monitoring Verified Oct 11, 2026 · changedetection.io home page with the hosted subscription | Traffic and market analysis Verified Oct 11, 2026 · Similarweb Web Intelligence pricing, Entrepreneurs plans |
| Exports | Not applicable to page change monitoring | The API comes with custom Business packages or can be bought as a standalone product. Verified Oct 11, 2026 · Similarweb Web Intelligence pricing, business packages and FAQ
|
| Seats | Not verified |
|
| Monitored pages | Filters include trigger text, CSS/xPath rules and ignore text. You can choose specific page elements to monitor. Verified Oct 11, 2026 · changedetection.io home page with the hosted subscription
| Not applicable to traffic and market analysis |
| Shortest check interval |
| Not applicable to traffic and market analysis |
| Alerts and delivery | Discord, Slack, Telegram, Rocket.Chat, Email, Matrix, NTFY, Office 365, Unlimited alerts The subscription lists over 85 notification types. Verified Oct 11, 2026 · changedetection.io home page with the hosted subscription | Not applicable to traffic and market analysis |
| History kept | Not verified |
|
| Coverage note | Month-to-month. One user and 6 months of historical data. Self-service plans are cancelled in the platform and stop renewing after the current billing period. |
2 requirements without reviewed evidence here
Not verified means the reviewed sources do not establish it; it does not mean a product lacks it or that it costs nothing.
- Monthly checks changedetection.io: not verified · Similarweb: not applicable
- Integrations changedetection.io: not verified · Similarweb: not applicable