Atomic Notify watches every page you care about. The moment something changes - you get an alert, an AI summary, and a full diff showing exactly what shifted.
Free plan · No credit card required
Add a URL, pick a schedule from every minute to every hour, and each check is compared with the last. Narrow it down with a CSS selector or a keyword, and get alerts wherever your team already works.
Monitors
12
Changed today
3
To review
2
Gig tickets · Keyword
18m ago
Standing tickets back on sale
Competitor pricing · .pricing-table
2h ago
Pro plan price changed from $49 to $39
Industry news · RSS feed
5h ago
2 new posts published
Supplier portal · Behind login
3d ago
Delivery terms updated — lead time now 10 working days
• Pro plan raised from $49 to $59/mo
View diff →• Free trial reduced from 30 days to 14 days
• New enterprise tier added at $199/mo — unlimited seats
Every content change is logged permanently. Your team can review, annotate, and compare any two snapshots — building a searchable record of how pages evolve over time.
Mark changes as reviewed
One click to mark a change as reviewed. Add a note for context — "Q2 pricing update", "confirmed with legal" — so teammates know what was already looked at.
Compare any two snapshots
Tick any two versions from your history and get a full word-level diff between them. Not just before/after — compare changes from weeks or months apart.
Searchable history with date filtering
Every change ever detected is stored. Filter by date range to see exactly what happened in a given period — useful for compliance, competitive research, or post-mortems.
Built for teams who need to know the moment a page changes.
Watch any page for text changes. Get a word-level diff and an AI-generated summary of exactly what was different.
When a page changes, a language model reads the before and after text and summarises what actually changed in plain English.
Focus on what matters — point a monitor at a specific element like a price, headline, or article body. Everything else is ignored.
Select any two versions from your full change history and get a side-by-side word-level diff. Not just consecutive changes — any two points in time.
Capture a screenshot of the page whenever a change is detected, so you can see it in context — not just as text.
Mark changes as reviewed with optional notes — "Q2 pricing update", "flagged for legal". Keeps the feed clean and gives teammates context at a glance.
Invite teammates, organise monitors into groups, and choose exactly who gets alerted for each one. Daily, weekly or monthly digests keep everyone in the loop.
Create and manage monitors programmatically. Secure API keys with full write access - integrate with your CI pipeline or Zapier.
If a watched page stops loading or starts blocking our checks, you'll hear about it — no silent gaps in your monitoring.
Content change alerts and CSS selector targeting on every plan. AI summaries and word-level diff on paid plans.
Need more? Contact us about Enterprise.
Watch any web page and see exactly what changed, the moment it changes. Set up in minutes.
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