WisePops is described as 'The nocode popup builder for modern marketers' and is an website in the Business & Commerce category. There are more than 10 alternatives to WisePops, not only websites but also apps for a variety of platforms, including SaaS, Shopify, Wordpress and Self-Hosted solutions. The best alternative is Getsitecontrol. It's not free, so if you're looking for a free alternative, you could try Notifu or SiteKit - Promotion Bar and Popup. Other great sites and apps similar to WisePops are Sleeknote (Paid), Personizely (Paid), Bounceexchange (Paid) and BrightInfo (Paid).
Justuno is an on-site suite of tools designed to help websites convert a higher percentage of traffic into leads + revenue. Create effective and incentivized data capture points in a simple, three step process to start converting your visitors.
Optinly helps online stores & businesses drive sales and capture leads with ease. The plugin is extremely user friendly requires no design/development skills. The forever free version has advanced features.