Testlio finds that leading app providers test 24 mobile device-OS combinations on average.January 22, 2020. Austin, TX. Today, users access mobile apps through devices that offer thousands of combinations of screen sizes and operating systems, leaving app QA managers with a challenging decision of how many and which devices to prioritize.This week, managed app testing company Testlio released new mobile device testing data from a recent query of its client base, providing a unique look into the number and most common mobile device/OS testing combinations among some of today’s QA testing leaders. The data set includes QA testing data from 31K+ client test records spanning a diverse range of industries (including commerce, education, entertainment, finance, productivity, sports, and travel). Collectively, these Testlio clients have a user base of more than 1.65 billion people.Testlio QA Insights – Most common device and OS combinationsAs a benchmark for other app providers, Testlio identified the top ten most frequently tested mobile device and operating system combinations from their 2019 customer data:Google Nexus 5X Android 8.1Apple iPhone 6s iOS 11.4.1Samsung Galaxy S7 Android 8.0Google Pixel 2 XL Android 9.0Apple iPhone 5 iOS 10.3.3Apple iPhone X iOS 12.3.1Xiaomi Mi A1 Android 9.0Google Nexus 6P Android 8.1Google Pixel Android 9.0Apple iPhone 7 iOS 12.3.1Based on a comprehensive analysis of client release data and device-OS configuration tests, Testlio also found leading mobile app companies follow a best practice of releasing mobile apps every 1 or 2 weeks, and testing 24 or more unique device-OS combinations before each update.We live in a world of increasingly diverse and personalized mobile experiences. We’re thrilled to see our clients embrace a human-driven approach to real device/OS testing, and we salute our clients’ collective approach to testing ~24 device/OS combinations per mobile app release.Testlio CEO, Steve SemelsbergerCross-platform testing — testing across multiple devices and operating systems — is not only essential to ensure a quality customer experience across the myriad of different mobile environments, but also to keep up with frequent updates to the Google Play and Apple App stores. When prioritizing mobile device testing, we recommend QA managers consider the data above, as well as the top mobile app testing devices and operating systems currently available.For easy reference to perspectives on mobile device testing, please grab the infographic. About TestlioTestlio is the leader in managed app testing. With robust client services, a global network of validated testers, and a comprehensive software platform, we provide a suite of flexible, scalable, and on-demand testing solutions: end-to-end, usability, localization, functional, payments, and more. Testlio clients include American Express, CBS, Hotels.com, Microsoft, the NBA, and Vrbo. When apps must perform brilliantly, Testlio helps ensure world-class customer experiences. In any location. On any device. In any language.