Mailtrack vs. Opensense Email Signatures

Mailtrack is an email tracking tool for Gmail. It has been running since 2013 and has more than 3 million users. It adds double check marks to your Sent folder — one for delivered, two for read — so you know whether the message you just sent has landed, without leaving Gmail or changing how you work.

Turn brand moments into business outcomes. Every email, every handshake, every follow-up shapes how people see your brand. Opensense helps you take control of those everyday interactions by transforming employee email, digital business cards, and sales outreach into consistent, measurable brand moments. No inconsistencies. No missed opportunities. Just smarter ways to engage, build trust, and drive pipeline. With Opensense, your communication becomes a brand channel: - Beautiful email signatures that are always on-brand. - Targeted ad banners in every inbox to promote campaigns and events.