Native mobile apps offer a premium user experience on both iOS and Android devices, but are more expensive due to high development and maintenance costs. Web mobile apps are cost-effective, easy to develop, and fast to deploy, but may have security gaps and limited functionality. Hybrid apps combine the benefits of native and web apps, but can be slower to deploy and require more maintenance. Progressive Web Apps (PWAs) provide an easier development process, no downloads required, and accessible on desktop and mobile devices, but may lack iOS support and push notifications. The choice of app type depends on business case, target user base, cost, time to market, user experience/performance, security, local device access, and discoverability. A customized testing approach is necessary for each type of app, considering factors such as functional testing, installation, visual UI testing, cellular data consumption, browser accessibility, responsiveness, connectivity issues, battery usage, offline experience, and accessibility.