Comparison · page monitoring

Xither or Visualping for watching vendor sub-processor lists?

Visualping watches any page you point it at. Xither watches one kind: the pages your AI vendors publish about your data.

When one of those changes, Xither also works out your deadline to object. If that’s not your job, Visualping is the better pick.

In their words

What Visualping says it does.

Four sentences from Visualping's own home and pricing pages.

Visualping, on its own page

“Protect your brand, business, and bottom line by catching non-compliance from anywhere: your own website, your partners, third-party vendors, resellers, online marketplaces and more.”
visualping.io/
read October 31, 2026

Visualping, on its own page

“Receive an alert with a highlighted screenshot whenever a change is detected.”
visualping.io/
read October 31, 2026

Visualping, on its own page

“Every Visualping plan includes visual and text change detection, bulk creation and editing, Visualping AI change summaries, and an important-or-not flag on every change.”
visualping.io/pricing
read October 31, 2026

Visualping, on its own page

“Visualping starts free: 150 checks a month across 5 pages, at no cost and with no credit card.”
visualping.io/pricing
read October 31, 2026

Side by side

Five questions, both answers.

The Visualping column restates the quotes above and its pricing page.

Which pages?

XitherThe sub-processor lists, DPAs, privacy and trust pages of the AI vendors we watch. We already know where each one lives.
VisualpingAny page you give it, including “third-party vendors”, in its own words.

What arrives when a page changes?

XitherAn email the morning we read it: the lines that moved, the page they came from and the date we read it.
Visualping“An alert with a highlighted screenshot”, plus AI change summaries and an important-or-not flag.

Your deadline to object

XitherA new sub-processor is matched to that vendor’s window. You get the closing date and a drafted notice.
VisualpingNot mentioned on the two pages we read.

How long changes are kept

XitherEvery dated copy we’ve kept, exportable as JSON and CSV, each with an RFC 3161 timestamp.
VisualpingThree months by default; a year on Business accounts; five or seven years on request.

Price

XitherFrom $10 a month by card, after a 14-day free trial with no card.
VisualpingStarts free: 150 checks a month across 5 pages.

Visualping, on its own page

“Change history is kept for three months by default. Business accounts can extend retention to one year, and longer retention of five or seven years is available on request.”
visualping.io/pricing
read October 31, 2026

Pick

When each one is the better pick.

Choose Visualping when

  • You want to watch pages that aren’t vendor terms: competitors, prices, regulators.
  • You watch a handful of vendors and are happy to find each URL and work out each deadline yourself.
  • You want to start on a free plan.

Choose Xither when

  • Your product runs on AI vendors, and you owe your customers notice when one changes how it handles data.
  • You need the date your window to object closes, not just that a page moved.
  • You need a dated, timestamped copy to show an auditor or a customer.

Not sure we watch your vendors? Scan your sub-processor page.

Fit

Is Xither the right tool for you?

Xither is for software teams that build with AI vendors and sell to businesses. It keeps your public sub-processor list current and watches the pages your vendors publish about your data: sub-processor lists, DPAs, privacy and trust pages, and model retirement schedules. When one changes, you get a message in Slack, Teams or email saying whether you need to do anything, with the lines that moved and any date that applies.

It fits when

  • You build software with AI vendors inside it, and your customers ask who handles their data. Check your code
  • Your DPA promises customers a current sub-processor list and notice when it changes. What you owe
  • Your vendors' DPAs give you a fixed window to object to a new sub-processor, and you need to know the day it starts. Meeting the deadline
  • Security questionnaires ask you to list every AI sub-processor in your product. How to answer
  • You need proof of what a vendor's page said on a given date.

Use something else when

  • You want to watch any page on the web, like a competitor's pricing. A general page-change monitor does that. Xither or Visualping
  • You need a whole vendor risk program: questionnaires, risk scores, SOC 2 report reviews and breach alerts. A third-party risk platform does that. Xither and risk platforms
  • We don't watch your vendors yet. Run the free scan first, or ask us to add them. Scan your page
  • You need to know what a clause means for your contract. That's a lawyer's job; we report what a page says.

Price

What Xither costs.

Two plans, paid by card: Essentials at $10 a month and Pro at $49 a month. A one-time due-diligence pack costs $149. The scan, the public record and the MCP server are free.

  • Essentials: $10 a month or $99 a year: daily watch on every vendor you name; alerts by email, Slack or Teams; your sub-processor page, hosted and kept current; your customers subscribe to it and get each change by email; drafted notices for your customers; dated evidence you can export.
  • Pro: $49 a month or $490 a year: everything in Essentials; a one-page review of any AI vendor before you adopt it; security-questionnaire answers about your AI vendors, in one export; a monthly vendor-monitoring report for your auditor; up to 5 people.

A 14-day free trial of Pro. No card, so nothing to cancel.

Visualping is a trademark of its owner. Xither is not affiliated with or endorsed by it. What they do is quoted from their own pages on the date shown.

Common questions.

Is Xither an alternative to Visualping?
Only for one job: watching the pages your AI vendors publish about your data. For any other page on the web, Visualping is the tool built for it.
Can I watch sub-processor lists with Visualping's free plan?
Its pricing page says the free plan covers 5 pages with 150 checks a month. You choose the pages, so you need each vendor's list URL first. Our where-vendors-publish page lists them.
Which is cheaper?
Visualping, if you watch a few pages and work out deadlines yourself: it starts free. Xither starts at $10 a month after a 14-day free trial, and does the deadline work for you.
Can I use both?
Yes. They barely overlap: Xither for the pages your AI vendors publish about your data, Visualping for any other page.

Not legal advice.

This page compares two tools for one job. Whether a vendor change affects your contracts is a question for your counsel.

Xither Staff Writer · reviewed October 31, 2026. Visualping is quoted from its own pages, read October 31, 2026. Prices change; check its pricing page before you decide.

Hear the morning we read a change to your vendor’s sub-processor list or DPA.

Name the AI vendors in your product. When a page you watch changes a fact, you get the lines that moved and the date any window runs out.

Try it free for 14 days

No card. Nothing to cancel.