HiOS claims to allow for a wide range of user customization without requiringrooting of the mobile device.[3] 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.[4]
In April 2016, HiOS 1.0 was released and was based onAndroid 6.0. It launched on Tecno Boom J8.[5][6][7] The OS included a custom home screen app.[8][9][10]
In March 2017, HiOS 2.0 was released and was based onAndroid 7.0, It launched on Tecno Camon CX and L9 Plus.[11][12]
In October 2017, HiOS 3.0 was released and was based onAndroid 7.0. It launched on Phantom 8 and Camon CM.[13][14][15] It came pre-installed with a new music player and browser app.[16][17]
In November 2018, HiOS 4.1 was released and was based onAndroid 8.1. It launched on Tecno Camon 11 and Camon 11 Pro.[18][19][20] It included new features provided by the original Android 8.1, such as single-handed mode, gesture controls andfacial recognition-based security.[21][22]
In April 2019, HiOS 5.0 was released and was based onAndroid 9.0. It launched on Tecno Spark 3 and Phantom 9.[23][24] In September 2019, HiOS 5.5 was also released based on Android 9.0 "Pie", launching onTecno Camon 12 andSpark 4.[25][26]
The beta version of HiOS 6.0 was released to Tecno Spark 3 Pro on 1 December 2019.
In February 2020, HiOS 6.0 was released and was based onAndroid 10. It launched on Tecno Camon 15.[27][28] Like the original Android 10, it allowed system-widedark theme to be set by the user.[29]
In September 2020, HiOS 7.0 was released and was based onAndroid 10. It launched on Tecno Camon 16 series.
In May 2021, HiOS 7.6 was released and was based onAndroid 11. It launched on the Tecno Camon 17 series.
