Huawei Mobile Services (HMS) is a collection of proprietary services and high level application programming interfaces (APIs) developed by Huawei Technologies Co., Ltd. Its hub known as HMS Core serves as a toolkit for app development on Huawei devices. HMS is typically installed on Huawei devices on top of running HarmonyOS operating system, and on its earlier devices running the Android operating system with EMUI including devices already distributed with Google Mobile Services. Alongside, HMS Core Wear Engine for Android phones with lightweight based LiteOS wearable middleware app framework integration connectivity like notifications, status etc.[1][2][3][4]
HMS consists of seven key services and the HMS Core. The key services are Huawei ID, Huawei Cloud , AppGallery, Themes, Huawei Video, Browser, and Assistant. Huawei Quick Apps is the alternative to Google Instant Apps.[5][6]
By January 2020, over 50,000 apps had been integrated with HMS Core.[7] Its rival, Google Mobile Services has 3 million apps on Google's Play Store.[8] The AppGallery claimed 180 billion downloads in 2019.[7]
In March 2020, HMS was used by 650 million monthly active users across 170 countries.[9]
A Chinese phone manufacturer, LeTV, hosted a smartphone business communication meeting in Beijing on September 27, 2021, to demonstrate its phone, the LeTV S1. This was the first smartphone from a third-party manufacturer to include Huawei Mobile Services (HMS).[10]