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 / 12 months ago
This chrome extension with all of the breakpoints set up https://chrome.google.com/webstore/detail/responsive-viewer/inmopeiepgfljkpkidclfgbgbmfcennb. Source: over 1 year ago
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Responsive Website Test - Test any website on desktop, mobile, and tablet
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Responsinator - Designed to test responsive websites on different devices.
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Responsive View - Test your responsive design across different devices