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
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Responsinator - Designed to test responsive websites on different devices.
TextNow - TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Responsive Website Test - Test any website on desktop, mobile, and tablet
Burner - Disposable phone numbers -- now with MMS photo support
Multi Screen Test - Test your site at different screen resolutions & devices.