Based on our record, Responsive Viewer seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Bonus! Useful Chrome extension for Responsiveness Testing. - Source: dev.to / about 1 year ago
This chrome extension with all of the breakpoints set up https://chrome.google.com/webstore/detail/responsive-viewer/inmopeiepgfljkpkidclfgbgbmfcennb. Source: almost 2 years ago
Testimonial.to - Collect video testimonials in the simplest way
Multi Screen Test - Test your site at different screen resolutions & devices.
Trust - Trust lets you easily create online surveys, collect customer video testimonials and reviews, then display them with beautiful widgets on your business websites.
Responsive View - Test your responsive design across different devices
Senja.io - Senja is the easiest way to collect, manage and share testimonials, online reviews and feedback from your customers.
Responsinator - Designed to test responsive websites on different devices.