· 8 min read · By Marwene Amor
Snov.io does not ship one Chrome extension. It ships three, they do different jobs, and people routinely install the wrong one. Two belong to the prospecting product and draw on your credit balance every time you use them. The third is a free Gmail tracker that has nothing to do with your Snov.io plan, and it is the one a lot of people are actually looking for when they search the extension by name.
This page separates them. If you only want the short answer, it is at the bottom under which one you actually need.
| Extension | What it does | Needs a paid plan | Uses credits |
|---|---|---|---|
| Email Finder | Finds and verifies addresses on LinkedIn profiles and company sites | No, works on the free tier | Yes |
| LinkedIn / Sales Navigator | Bulk-collects a whole search result set into a list | No, but the free tier's credits run out fast | Yes, heavily |
| Unlimited Email Tracker | Opens, clicks, scheduled send and reminders inside Gmail | No | No |
This is the feature that started the whole product back in 2017, and it is still the part most LinkedIn-led prospectors use daily. It installs free from the Chrome Web Store, it works on any paid or free Snov.io plan, and it puts the finder and the verifier on the pages where prospecting actually happens instead of making you bounce between tabs.
In practice it covers three workflows:
Accuracy is the same story as the main finder, because it is the same engine: competitive with Hunter on common B2B domains, weaker on small or international ones, and every result carries a confidence score. The discipline does not change because the data arrived through an extension. Verify before sending, and treat low-confidence results on hard domains as leads to check rather than addresses to email. The extension makes collection fast. The verifier is what keeps your bounce rate down.
This is where the extension earns its keep, and where it costs you the most.
Two things are worth knowing before you build a workflow on it. Extraction runs against your Snov.io credit balance like any other lookup, so a large Sales Navigator pull can eat a monthly allowance in an afternoon. Plan the search before you run it rather than collecting everything and filtering later.
And LinkedIn's own limits still apply. The extension reads what your account can see, so a free LinkedIn account carrying commercial search limits will cap what you collect no matter which Snov.io plan you are on. If your prospecting genuinely starts in Sales Navigator, that subscription is part of the cost of this workflow, not an optional extra.
Who gets the most from it: anyone whose pipeline starts with a list of people rather than a list of companies. That is exactly the gap a domain-first database leaves open, and it is the honest reason to pick Snov.io over a pure finder.
This is a completely separate extension and the confusion around it is worth clearing up. It does not require a paid Snov.io plan, it does not consume credits, and Snov.io publishes it as free and unlimited with no cap. It has over 100,000 users on the Chrome Web Store.
What it does inside Gmail: real-time desktop notifications when a message is opened or a link is clicked, scheduled sending up to three months ahead, follow-up reminders triggered by unopened, unclicked or unanswered messages, and support for several Gmail accounts at once. It adds no signature, no logo and no visible tracking mark to the messages you send, which is not true of every free tracker.
If you send a low volume of one-to-one mail from Gmail and want to know when something lands, this is a reasonable install and it costs nothing. It is not a campaign tool and it does not replace a sending platform.
Here is the part the tracker's own marketing will not say. Open tracking works by loading a one-pixel image, and since Apple introduced Mail Privacy Protection that pixel is fetched by Apple's servers whether or not a human ever looked at the message. Every Apple Mail recipient with the feature on registers as an open, immediately, always.
So a rising open rate can mean interest, or it can mean your list skews towards Apple Mail. You cannot tell which from the number alone. Click tracking survives this and stays meaningful, which is why click rate and reply rate are the two figures worth acting on. The full mechanics are in our Apple Mail Privacy guide.
Use the tracker for the notification, not for the metric.
A prospecting extension of this kind reads the page you are on so it can pull profile and company data, and it talks to its vendor's servers to run the lookup. That is not a Snov.io quirk, it is how every extension in this category works, Hunter's and Apollo's included.
The practical consequence: while it is enabled, it sees the LinkedIn profiles and company sites you browse. If that conflicts with a client's security policy, the answer is not a different extension, it is doing the work from inside the web app and leaving the browser out of it.
Your prospecting starts on LinkedIn. Install the finder extension and connect it to a paid plan. The free tier's credits will not survive contact with a Sales Navigator list.
You send one-to-one mail from Gmail and want to know when it lands. Install the Unlimited Email Tracker on its own and ignore the rest of the product. It is free and it does not touch your credits.
You run campaigns at volume. Neither extension is the thing that matters. The verifier and the sending setup decide whether your mail arrives.
A clean extraction still lands in spam if the domain sending it is not authenticated. Two checks are worth the five minutes.
Read your own live records with the free deliverability checker, which reads SPF, DKIM and DMARC straight from public DNS and tells you what is broken. If you want the reasoning behind each record rather than the verdict, the SPF, DKIM and DMARC guide covers it.
We audited the authentication of 156 B2B lead generation agencies and 56 percent had a real defect on their own domain. The full study has the method and the counts.
The extension itself is a free install from the Chrome Web Store and it works on any Snov.io plan, including the free tier. What is not free is what it does. Every email the extension finds or verifies draws on your Snov.io credit balance, so the free plan's monthly allowance is the real limit, not the extension.
Three. The Email Finder extension and the LinkedIn extension belong to the prospecting product and consume credits. The Unlimited Email Tracker is a separate free Gmail extension that requires no paid plan and consumes no credits. People searching for the Snov.io extension are often looking for the tracker without realising it is a different install.
Yes. On a single profile it returns the most likely address with a confidence score. On a Sales Navigator or LinkedIn search it collects the whole result set in one pass, which is what makes it usable for building a list rather than looking up one contact at a time. Two limits apply: extraction draws on your Snov.io credits, and LinkedIn's own commercial search limits still cap what your account can see.
Snov.io publishes the Unlimited Email Tracker as free with no cap, no paid plan required and no credits consumed. It has over 100,000 users on the Chrome Web Store. It works inside Gmail and adds no signature, no logo and no visible tracking mark to your messages, which is not true of every free tracker.
Not reliably. Open tracking loads a one-pixel image, and Apple Mail Privacy Protection fetches that pixel from Apple's servers whether or not a person ever opened the message. Every recipient with the feature on registers as an instant open. Click tracking survives this, so click rate and reply rate are the two figures worth acting on. Use the tracker for the notification, not for the metric.
They solve slightly different problems. Hunter's extension is stronger for domain-first work, where you land on a company site and want its pattern and its known addresses. Snov.io's is stronger for people-first work that starts inside LinkedIn or Sales Navigator. If your pipeline begins with a list of people rather than a list of companies, Snov.io's extension covers the gap a domain database leaves open.
It surfaces the verifier alongside the finder, and every result carries a confidence score. That is not the same as a clean list. Low-confidence results on small or international domains should be treated as leads to check rather than addresses to send to. The verifier is what keeps your bounce rate down, not the speed of collection.
Like every prospecting extension of its kind, it reads the page you are on so it can pull profile and company data, and it talks to Snov.io's servers to run the lookup. That means it sees LinkedIn profiles and company sites while you browse with it enabled. If that is a problem for your security policy, the answer is not a different extension, it is doing the work from inside the web app instead.