Web change intelligence
The web changes. You should know.
Paperpin watches the pages that matter, detects meaningful shifts in content, price, layout, and structure, and routes intelligence directly into your workflow.
Competitor Pricing
-
acme.com/pricing
Live
Before
Starter
$29
per month
After
Starter
$35
per month
+$6
Meaningful change detected
Price increased $29 to $35 - Visual - 62% diff
High
Delivered to
#pricing-alerts
you@company.com
BBC News - Top articles replaced 55% diff, Significant
Competitor Pricing - Price changed $29 to $35 62% diff, High
Release Notes - Changelog section added Text, Moderate
Vendor Status - Incident banner removed Layout, Low
Job Board - New listings detected AI, Significant
Policy Page - Terms section rewritten Text, High
BBC News - Top articles replaced 55% diff, Significant
Competitor Pricing - Price changed $29 to $35 62% diff, High
Release Notes - Changelog section added Text, Moderate
Vendor Status - Incident banner removed Layout, Low
Job Board - New listings detected AI, Significant
Policy Page - Terms section rewritten Text, High
How it works
Point. Watch. Know.
Four steps from URL to inbox. No code, no scrapers, no brittle selectors.
1
Enter a URL
Paste any public webpage. Paperpin renders it fully with JavaScript, dynamic content, and all.
2
Select your watch zone
Click the exact region of the page you care about. The pricing table, job listings, or hero headline.
3
Choose detection mode
Visual, text, or AI-powered. Set sensitivity from low to high and separate noise from signal.
4
Receive structured signals
Changes arrive with visual proof, diff score, significance rating, and AI explanation.
Capabilities
Every change, tracked.
Monitor groups and workspace
Organize monitors into groups. See status at a glance. One workspace for every URL you care about.
Competitor Pricing
Changed
BBC News Homepage
Changed
Vendor Status Page
Quiet
Release Notes
Changed
Diff scoring
Every change gets a precise score.
BBC News
55%
Pricing
62%
Vendor
18%
Visual proof on every change
Every meaningful change preserves before and after screenshots of the watched region with highlighted diff areas.
Delivery everywhere
Route change signals to wherever your team already lives.
Slack
Ready
Ready
Webhook
Ready
Discord
Ready
Under the hood
Built on real signals, not best guesses.
Every webhook delivery includes a structured payload with the monitor name, event link, summary, detected changes, and signed visual proof URLs.
Watch-zone isolation, only the region you selected, not the full page
Baseline snapshots that self-update after meaningful changes
Sensitivity controls that separate noise from signal
Delivery payloads with summary, changes, event link, and visual proof
{
monitorName: "Competitor Pricing"
eventUrl: "paperpin.io/monitors/mon_123/evt_456"
main: {
summary: "Pricing section changed meaningfully."
}
changes: [
{
title: "Starter price"
change: "Monthly price changed from $29 to $35."
},
{
title: "Plan limit"
change: "Free tier changed from 3 to 5 monitors."
}
]
currentImageUrl: "paperpin.io/signed/current.webp"
afterHighlightedImageUrl: "paperpin.io/signed/after-highlighted.webp"
beforeHighlightedImageUrl: "paperpin.io/signed/before-highlighted.webp"
}
Pricing
Start free. Scale when you need to.
Every monitor run costs one credit. Simple, predictable, no surprises.
Free
$0 / month
For individuals getting started with web monitoring.
3 monitors
50 credits / month
60-min minimum interval
All delivery channels
Slack and Discord integrations
Most popular
Pro
$15 / month
For teams that need faster checks and deeper integrations.
10 monitors
400 credits / month
10-min minimum interval
All delivery channels
All integrations
Scale
$35 / month
For power users and teams monitoring at volume.
20 monitors
900 credits / month
3-min minimum interval
All delivery channels
All integrations
Priority support
Stop refreshing.
Start knowing.
Set up your first monitor in under two minutes.
No credit card - 3 monitors free forever - Cancel anytime