SendFox

Unfortunately, it doesn't allow you to change the confirmation redirect URL for the double opt-in to a custom thank you page unless you upgrade to their Empire Add-On monthly subscription.

The default thank you page that subscribers see after verifying their email is filled with ads for their other products.

This is disappointing, as they essentially force you to upgrade to the Empire Add-On by imposing this limitation.

The automations are very simple and linear, with no capability to add conditionals.

Additionally, there is no tag system for users, forcing all segmentation to be done via Lists, which becomes inconvenient for complex segmentation needs.

I was hoping to use this tool for my projects, but with these conditions it is basically useless for my needs.