I'm currently using the Hubspot E-Mail tracking Chrome Plugin. But the UI is not very pleasing, it is slow, and it often counts my own opening as someone else. I would love something with the same Idea but "just working".
- If you're working in Gmail, Streak is really nice. It has an ability to track your emails opening (not just count them but even show country and device when those data are available). Not sure about click tracking in regular emails but opening works great to me.