OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
FLATHUB - Apps for Linux, right here
POPUPSMART - A no-code tool to increase e-commerce sales, build email lists and engage with your visitors in just 5-minutes.
AppImageHub - AppImage applications for Linux without installation
OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.
Flatpak - Flatpak is the new framework for desktop applications on Linux