Yeh with Sendy you need to install it and configure it on your hosting. You also need to update it every time new features get released. With SendGlide we take care of all the hosting for you. All you need to do is log in to the SendGlide app and away you go. All new features are free for customers.
We're really focusing on making sending emails and managing email campaigns easy and simple.
Yeh you can better measure stats like open rate, CTR and deliverability. It's especially good for marketers and entrepreneurs that want an easy to use interface to manage their email marketing campaigns.
Yeh the data is valuable if used in a meaningful way. You'd still want to A/B test different things you change but our tool would give you a good starting point based on user/visitor behaviour.