Proofy vs SatisMEter

Best offer for email list verification

Quickly validate and verify your email lists. Just drop your contacts directly into the PROOFY interface. We'll sort out the good, the bad, and the ugly. Verify email addresses within your application using our Real Time API.
Our stage email verification process will ensure you get rid of all invalid emails and helping you boost your return on investment (ROI) for email marketing campaigns

SatisMeter helps users (aiming at SaaS) get more useful feedback straight from their web apps and use that feedback to make their products better and more loved.

You can send gathered customer feedback to customer analytics service you already use for further processing, customize SatisMeter survey to comply with your design, email surveys to users that don'l answer via the widget, use SatisMeter email templates for email surveys, and one killer feature for international services: ask every user in their own language.