Responsively App vs SRWare Iron

Responsively App is a free, open-source development browser built specifically for responsive web design work. It lets developers view multiple device viewports side by side, with clicks, scrolls, and form inputs performed on one device automatically mirrored across every other device shown, instead of manually resizing a single browser window. The app includes Preview Suits for saving and switching between favorite device combinations, a unified element inspector that works across all visible devices at once, and one-click batch screenshots of every device in view. It also bundles standard browser developer tools, including cookie, local storage, and session storage management.

SRWare Iron is a Chromium‑based web browser that removes many of the default tracking features found in Chrome, offering a cleaner, more private browsing experience. It retains Chrome's speed and compatibility while adding built‑in ad blocking and anti‑fingerprinting measures. The browser is free to use, works across major desktop operating systems, and includes optional extensions for further privacy control. Iron aims to provide a sleek, lightweight interface for users who want speed without sacrificing security.

• Completely free and open source
• Sees responsive layout across many devices without manual resizing
• Synchronized interactions save time compared to testing each device separately
• Includes standard devtools features like storage inspection alongside responsive testing

• Strong built‑in privacy features
• Retains full Chrome extension compatibility
• Fast page load times
• Low memory footprint

• Desktop app only, not a browser extension for your existing browser
• Smaller community and update cadence than Chrome or Firefox devtools
• Doesn't replace full cross-browser engine testing (WebKit/Gecko differences)

• Limited official support channels
• Occasional compatibility quirks with newer Chrome features
• Not fully open source