Applivery MDM - Android device management, simplified
BuiltWith - Find out the technology behind websites
Deviceplane - Device management for embedded systems and edge computing
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)
WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.