Mailtrack
Simple Gmail plugin that tells you the instant someone opens your email — now bundled into the broader Mailsuite toolkit with mail merge and e-signatures.
🔗 Visit Mailtrack
Description
Mailtrack answers one very specific, very old question: did the person actually open my email? It adds a small checkmark to your sent messages in Gmail — one gray check for sent, two blue checks for opened, the same visual idea as WhatsApp — so you know in real time whether your message landed and was read, without ever asking the recipient. It's aimed less at big sales departments and more at everyday professionals: a real estate agent wondering if a listing email was seen, a freelancer chasing an unpaid invoice, a teacher checking whether a parent read a notice. People who just want a lightweight, no-fuss way to know what happened after they hit send.
Mailtrack has quietly become one of the largest tools in this space through sheer longevity and reach, reporting 3 million+ total users and 116,000 paying subscribers — a scale most sales-engagement startups never reach. The original mailtrack.io domain now redirects to mailsuite.com, reflecting a rebrand that folded the tracking-only product into a broader "Mailsuite" bundle adding mass email campaigns (up to 10,000 recipients at once), mail merge, document tracking with watermarked secure sharing, and digital signature requests. Specific tier pricing isn't published on the public site beyond confirming a free tracking tier exists, which is unusual for a tool this size and makes it harder to comparison-shop before signing up.
💬 Our review
The short version: Mailtrack is the simplest, most bare-bones read-receipt tool in this category — reliable for basic open tracking, but you'll outgrow it fast if you need real sequencing or multichannel outreach.
Mailtrack's case rests almost entirely on scale and simplicity: 116,000 paying users is a real signal of product-market fit for a tool that does far less than Mixmax or Saleshandy. Against Mixmax, which also lives inside Gmail but adds AI-drafted sequences, meeting scheduling and reply-triggered automation, Mailtrack looks thin — it's fundamentally a tracking-and-signatures bundle (Mailsuite), not a full sequencing platform. It's a reasonable fit for a solo real estate agent or freelancer who just wants to know if an email was opened, but a sales team that needs cadences, lead sourcing or CRM-style pipeline tracking should look at Saleshandy or Klenty instead. The lack of published pricing tiers beyond "a free tier exists" is a genuine weak point — you can't tell what you'll pay before creating an account, which is worse than Mixmax's fully transparent $29-105/month structure.
💰 Pricing
📊 Global score
🤖 AI-enriched data
Free tier with basic open/click tracking. Paid tiers exist (mail merge, mass campaigns, document tracking, e-signatures) but exact pricing is not published on the public site.
Pros
Very large user base — 3M+ total users, 116K paying subscribers
Dead-simple read-receipt UX (checkmarks, like messaging apps)
Bundles mail merge, mass campaigns, document tracking and e-signatures in one product (Mailsuite)
Cross-platform: Chrome, Gmail, Outlook, Android, iPhone
Cons
Exact pricing for paid tiers not published — can't comparison-shop before signup
No AI sequencing or multichannel outreach (email/LinkedIn/calls) like competitors
Rebrand to Mailsuite makes the original Mailtrack product harder to evaluate standalone
Built for individual tracking, not designed as a full sales-team pipeline tool