Mailtrack is the right tool when you want the absolute cheapest paid tracker on Gmail and you treat opens as nice-to-know. It stops being right the moment the "Sent with Mailtrack" footer becomes a credibility problem, you add an Outlook user, or you start routing follow-ups off open data and discover that raw pixel-load counts run 20-40 percent inflated.
These are the six Mailtrack alternatives worth evaluating, ordered by the trade-offs Mailtrack-leaving teams most often cite: removing the footer, gaining Outlook support, getting confidence-scored opens, and adding AI features without jumping to enterprise pricing.