HiOS

HiOS (/ˈhaɪɒs/) is a customized Android operating system developed by Chinese mobile phone manufacturer Tecno Mobile, a subsidiary of Transsion Holdings. The OS is used in the company’s smartphones.

HiOS claims to allow for a wide range of user customization without requiring rooting of the mobile device. The operating system is bundled with pre-installed utility applications. The company claimed that the applications would allow users to free up memory, freeze applications, and limit data accessibility to applications, among others.

In April 2016, HiOS 1.0 was released and was based on Android 6.0. It launched on Tecno Boom J8. The OS included a custom home screen app.

In March 2017, HiOS 2.0 was released and was based on Android 7.0, It launched on Tecno Camon CX and L9 Plus.

In October 2017, HiOS 3.0 was released and was based on Android 7.0. It launched on Phantom 8 and Camon CM. It came pre-installed with a new music player and browser app.

In November 2018, HiOS 4.1 was released and was based on Android 8.1. It launched on Tecno Camon 11 and Camon 11 Pro. It included new features provided by the original Android 8.1, such as single-handed mode, gesture controls and facial recognition-based security.

In April 2019, HiOS 5.0 was released and was based on Android 9.0. It launched on Tecno Spark 3 and Phantom 9. In September 2019, HiOS 5.5 was also released based on Android 9.0 "Pie", launching on Tecno Camon 12 and Spark 4.

The beta version of HiOS 6.0 was released to Tecno Spark 3 Pro on 1 December 2019.