Here are the top 15 Most Popular Email Tracking Apps for Gmail & Outlook.

1. SalesHandy

saleshandy.com

 

2. LeadBoxer

leadboxer.com

 

3. Yesware

yesware.com

 

4. Bananatag

bananatag.com

 

5. Checker Plus for Gmail

chrome.google.com

 

6. Boomerang

boomeranggmail.com

 

7. Streak

streak.com

 

8. MixMax

mixmax.com

 

9. Mailtrack

mailtrack.io

 

10. Gmelius

gmelius.com

 

11. Streak for Gmail

streak.com

 

12. Mailtag.io

mailtag.io

 

13. Freshsales

freshworks.com

 

14. Vocus

vocus.io

 

15. Cirrus Insight

cirrusinsight.com