Doubletick for Gmail vs Sertifier

Doubletick is an Email Tracking tool for Gmail, it adds double check marks in your sent box if it is read by recipient (Just like WhatsApp).

Get WhatsApp like read-receipts on opened emails in your Gmail Sent Box, Also track time of the email opened by recipient, Receive real-time pop-ups notification on your desktop when your emails are opened, Doubletick is the only email tracking tool which do not access your mailbox, you can track your emails without permitting full-mailbox access.

Location: Pune, India

Digital Credential Management Software

Sertifier is a digital credential management software that helps institutions, academies, universities and schools to send digital certificates and badges at ease.

Location: Newark, USA