According to AlphaMoat, as of 2026-09, the Chrome extension SignalizeAI has 13 users (+30% MoM), rated 4.7 (3 reviews) — ranked #8,549 of 9,324 AI browser extensions, and #800 of 888 in Marketing & Sales.
AI sales prospecting. Research any company in seconds, then get alerts when their pricing, hiring or messaging changes. SignalizeAI is an AI sales prospecting and prospect research tool. It reads a company's website, gives you the angle to sell to them, and then keeps watching that site and tells you when their pricing, hiring or messaging changes.
THE PROBLEM
Researching an account properly takes twenty minutes. You open their homepage, their pricing page, their about page, their careers page. You work out what they actually sell, who they sell it to, and which job title would care. Then you write an email that sounds like you did all that.
Do it for forty accounts and it's a week.
So most people don't. They send the generic one, and it reads generic, and it gets ignored. Or they paste a homepage into a chat window, get back a summary that could describe any company in the category, and send that instead.
And the accounts you researched in March are wrong by June. Companies change their pricing, their positioning, and who they're hiring, and nothing tells you. The best moment to reach out is right after something changes, and that is exactly the moment you find out about last, if at all.
WHAT SIGNALIZEAI DOES
Open the side panel on any company's site. In a few seconds you get a brief:
No prompt to write. No tabs to switch between. No pasting.
From the brief, one click drafts outreach emails, and follow-ups for when the first one doesn't land. They're written from that company's specifics, not from a template with the name swapped in.
NEW IN 5.5: CHANGE DETECTION
This is the part a chat assistant cannot do.
Save an account, turn on Watch, and SignalizeAI re-reads that site on a schedule. When something moves, you get an alert with four things:
as a new enterprise tier
rather than a claim that something did
That last one is the whole point. Instead of "just checking in", you send "saw you moved enterprise onto usage-based pricing", on the day it happened.
The checks run in the background on a schedule. You don't need the tab open, the browser focused, or to remember to look. Open the panel and the changes are waiting, newest first, grouped by Today, Yesterday, This week and Earlier.
Every watched account also keeps a history, so you can see how a company has moved over time rather than only what changed last night.
WORKING A LIST
Batch mode takes a list of companies and works through the whole thing, so forty accounts is one action instead of forty.
Saved prospects give you somewhere to keep them:
WHAT PEOPLE USE IT FOR
same way you watch a prospect
WHO THIS IS FOR
WHAT IT ISN'T
It isn't a scraper, and it isn't a contact database. It doesn't find you email addresses or phone numbers. It reads public web pages, the ones you would read yourself, and tells you what is on them and what changed.
It doesn't auto-send anything. Every email is drafted for you to read, edit and send yourself, from your own inbox.
PRIVACY
We don't sell your data and we don't share it with advertisers.
The extension reads the page you're on when you ask it to, and the accounts you explicitly save and choose to watch. It doesn't read your browsing in the background, and it doesn't touch pages you haven't pointed it at.
Full policy: https://signalizeai.org/privacy
CHROME AND FIREFOX
Same extension on both. Sign in once and your saved accounts, statuses and watch list follow you.
SUPPORT
Website: https://signalizeai.org Contact: https://signalizeai.org/contact Email: [email protected]
Find emails for 75% of Linkedin or ANY website. Save profiles to CRM. Chatgpt comments & email writer. Trusted by 76% of Fortune500.
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.