Mailtrack.io - The best email tracking solution I've found. Free

AIMS360 - AIMS360 is a simple yet robust apparel and fashion business solution that you can use to enhance the satisfaction level of customers.

ReadNotify - ReadNotify enables the user to know when email is sent and the reciever reads the email.

Khaos Control Cloud - Enterprise resource planning for small business owners

Bananatag - Find out what happens to your emails after you press send! Add email tracking, attachment tracking, email scheduling and templates to your daily emails.

MIE Trak Pro - MIE Trak Pro is an ERP offering that is ideal for manufacturing businesses with modules designed to accommodate all your production cycles.