RivalScan is described as '| Competitive Intelligence for Lead Generation. Target your competitor's customers. Find out what websites are built with, Track Technology Trends, Collect Custom Data, Monitor Websites for changes, and much more!' and is an app in the Development category. There are more than 10 alternatives to RivalScan for a variety of platforms, including Online / Web-based, Google Chrome, Firefox, SaaS and Chrome OS. The best alternative is Wappalyzer, which is both free and Open Source. Other great apps like RivalScan are BuiltWith (Freemium), WhatRuns (Free), What CMS (Free) and Similar Tech (Paid).
Wappalyzer is a technographics data provider, uncovering technologies such as content management systems, customer relationship management, ecommerce platforms, advertising networks, marketing tools and analytics.
WhatRuns offers browser extensions that give you information on the technology being used on websites you visit. WhatRuns uses a proprietary recognition algorithm to detect even the latest web technologies and plugins.
WebTechSurvey is an online technology checker. Lookup website technology stack. Discover recent additions to the website technology stack. Compile a list of websites that use specific web technology, or recently made a technology switch.