Change Detection.
Ovro monitors your saved pages on a schedule and tells you exactly what changed — no manual diffing required.
Website change detection monitors web pages at regular intervals, compares each new version against the previous one, and alerts you when something is different. Ovro takes this further by combining pixel-level diffs with AI vision — instead of just showing you a visual diff or a list of changed HTML elements, Ovro tells you exactly what changed in one sentence. Examples: 'Price dropped from $349 to $279' or 'New section added about return policy.'
What's included.
Pixel diff
Fast 8×8 cell grid comparison detects visual changes down to color shifts and layout shifts.
AI vision
AI vision reads each screenshot and writes a plain-language summary of what changed.
Watch prompts
Tell the AI what to ignore: "only alert me on price changes" filters out ad rotations.
Smart intervals
Schedule windows let you check more often during business hours, then pause at night.
Screenshot history
Every check is archived. Scrub through the timeline to see how a page evolved over weeks.
Side-by-side diff
Old and new screenshots overlaid with the changed regions highlighted in green and red.
Anti-flicker guard
Re-checks ambiguous changes to avoid false positives from dynamic content.
Instant alerts
Email, SMS, Slack, Discord, or webhooks fire the moment a meaningful change is found.
In detail.
Add a URL and pick an interval
Paste any URL into Ovro and pick how often it should be checked — anywhere from a few minutes to once a day. The first check captures a baseline screenshot, the rendered text, and structured fields, all stored as the reference snapshot for future comparisons.
Optional watch prompts
Tell Ovro what you actually care about — "only alert me on price changes", "ignore the carousel", "watch for new roles in Berlin" — and the AI filters out noise from ads, banners, and dynamic content before deciding whether to fire an alert.
Automatic comparison in the background
On each scheduled check, Ovro captures a fresh screenshot and extracts the page content. It compares both the visual appearance (pixel-level diff) and the text content against the previous snapshot. If both layers agree there's a meaningful difference, the change goes to the AI layer.
AI vision writes the summary
When a change is detected, an AI vision model reads both screenshots and writes a one-sentence summary — "Price dropped from $349 → $279 (-20%)" — along with structured before/after fields, a topic tag, and a severity level.
Insights feed + multi-channel alerts
The change shows up at the top of your Insights feed within seconds and is dispatched through your configured notification channels — email, SMS, Slack, Discord, or webhooks — each with the AI summary and a link back to the visual diff.
Free plan includes change detection on 5 pages with 10 checks/month. Plus ($4.99/mo) unlocks 500 checks, 10-minute intervals, and AI summaries.
Try Ovro free.
Free for the basics. Paid plans from $4.99/mo.
Free forever · No credit card