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Best mobile operating systems of 2021

A ranking of mobile operating systems (mobile OSs).

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mobile operating system(Android operating system, iOS operating system, Windows mobile operating system)

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Minimum number of votes to be in this ranking is currently 1.

Items in: 0
Candidates list: 13.

See also the lists:

List of mobile operating systems

Most popular mobile operating systems

Oldest mobile operating systems

Newest mobile operating systems

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Mobile operating systems (active now)

Mobile operating systems of 2024

Mobile operating systems of 2023

Mobile operating systems of 2022

Mobile operating systems of 2021

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