Responsively App vs Wappalyzer
Side-by-side comparison of features, pricing, ratings, and alternatives.
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.
Wappalyzer is a technology profiling tool that scans websites and reports the frameworks, CMSs, analytics tools, payment processors, and other software they run on, using a browser extension, a web-based lookup, and an API. Developers use it to research how a competitor's site is built, while sales and marketing teams use the same underlying data to build lead lists filtered by technology, geography, and traffic. The platform also offers CRM enrichment, email verification, and website alerts that notify a team when a prospect or competitor changes their tech stack. A free tier allows a limited number of lookups per month, with paid plans scaling lookup, list, and API credit volumes for larger teams.
- 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
- Fast way to research how a specific site is built
- Same data serves both developers and sales/marketing teams
- Free tier available for occasional lookups
- Browser extension makes ad hoc lookups effortless
- 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)
- Paid plans are priced for business/sales use cases, not casual developer use
- Pro and Business tiers are expensive relative to typical developer tools
- Detection can miss custom or heavily obfuscated tech stacks
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The Verdict
AI-generated from listing dataWappalyzer is a SaaS tech‑stack detection tool with a freemium model aimed at developers and sales teams, while Responsively App is a free, open‑source desktop app for responsive design testing.
Key differences
- •Purpose: tech‑stack identification vs. responsive layout preview.
- •Delivery: cloud/SaaS with API vs. desktop‑only application.
- •Pricing: freemium with paid tiers vs. completely free.
- •Target audience: developers + sales/marketing vs. frontend designers/developers.
- •Extensibility: API and CRM enrichment vs. no external integrations.
Pricing & value
Responsively App is fully free and open source; Wappalyzer has paid Pro/Business tiers for advanced use.
Ease of use / learning curve
Wappalyzer offers a browser extension for instant lookups; Responsively requires installing and running a desktop app.
Features & depth
Wappalyzer provides tech detection, alerts, email verification, CRM enrichment, and an API; Responsively focuses solely on responsive preview.
Integrations & ecosystem
Wappalyzer integrates with CRM platforms and offers an API; Responsively lists no integrations.
Collaboration
Wappalyzer’s lead lists, alerts, and CRM enrichment support team sharing; Responsively is a single‑user desktop tool.
Scalability
Wappalyzer’s cloud service can handle unlimited URL scans via API; Responsively runs locally on one machine.
Support
Wappalyzer is a commercial product with paid tiers likely offering support; Responsively relies on community support only.
Choose Responsively App if…
Frontend developers/designers who only need to test responsive layouts locally.
Choose Wappalyzer if…
Teams needing tech‑stack data for sales, marketing, or large‑scale automated analysis.
Common questions
Is there any cost to use either tool?
Wappalyzer offers a free tier but charges for Pro/Business plans; Responsively App is completely free.
Can I integrate the tool into my existing workflow or CRM?
Wappalyzer provides CRM enrichment and an API for integration; Responsively App has no listed integrations.
Does the tool run in the browser or require installation?
Wappalyzer is a cloud SaaS with a browser extension; Responsively App is a desktop‑only application.