Snapshot history
Each check stores a version when content changes — review any past state.
Webpage version monitoring
Daily monitoring
Version history
Highlighted diffs & alerts
Per-URL pricing
Webpage monitoring with versions, diffs, and review built in
Add the URLs that matter. Compare Versions saves snapshots on a schedule, flags when content changes, and gives you highlighted diffs, a Main view inbox, and email alerts — for webpages and PDFs, with folders for categorization and optional email digests.
10 URLs · 30 days daily checks free
More than an alert — a full review workflow
Review your way
Side-by-side, single page, text-only, text-in-context, and image diff when enabled.
Pay per page
Pay by URL count — one domain or many doesn’t change the price.
How it works
Add your URLs
Paste the pages you want to watch — product sites, docs, news, rate pages, PDFs, and more. Organize them with folders.
We check on a schedule
Each run fetches the live page and compares it to the last snapshot. If the page changed, we save a new snapshot and the diff.
Review what changed
See what changed in Main view, or in the email alert we send you. After you look, mark it as checked.
Review changes the way you work
The usual way to view a change is side by side. Orange and cyan highlights show what changed. You can also see only the changed text, or the changed text with the words around it. Each of these works side by side or on one page. Image changes are available too.
- When you check a change, it turns green right away. You can then show only the changes you have not checked.
- Each changed link has a short summary: S, M, or L for the size of the change, TWC for text words, and DWC for words that contain numbers, such as rates or fees.
One inbox for every change
After each monitoring run, changed pages appear in Main view. Filter by folder, site, or unreviewed only — then open the diff in one click.
- Group by site or date
- Folder chips for departments or topics
- Show only changes you have not checked
Email alert when pages change
Get an email alert after each run: which pages changed, a short summary, and a link to open each change. Turn the email alert off, or set a minimum DWC, in Settings.
- A summary table, with a link to each change
- Manage email alerts in Settings
- Same labels as in the app (S/M/L, TWC, DWC)
Pay for each URL you monitor
11 URLs costs less than 12. Pick a plan by how many URLs you need; upgrade when your list grows. Start with a free trial, then subscribe when you are ready.
From $7.50/mo for 10 URLs, Pro $45/mo for 75 URLs, or any other plan.
Compare Versions example use cases
Compliance & legal
Keep an eye on pricing, policy, and product pages.
Product & content
Catch copy, pricing, and spec changes across marketing or docs sites.
Research & ops
Watch competitor, partner, or reference pages.
Rates and fees
Follow bank, insurer, and comparison pages. See the exact numbers and words that changed.
Law firms
Watch public regulation and policy pages, and read the exact wording that changed.
Journalism
Watch public source pages and see what the wording changed to.
Public agencies
Watch guidance, rule, and notice pages, and see the exact text that changed.
Investor reports
Watch public filings and announcements, including PDFs, and see what changed.
Add the pages you care about. Each day, see exactly what changed.
Start monitoring your pages
Create a free account, add up to ten URLs, and run your first check in minutes.