The Best Open-Source Alternatives to Android and iOS


While we all have certain biases towards the Android and iOS operating systems, the fact is that there are tons of great mobile applications that are available on open-source platforms. These programs frequently offer greater stability, simplicity, and affordability than their proprietary versions.

The two most widely used operating systems worldwide are Android and iOS. They have a lot of features that make them great for both business and personal use. However, they also have several limitations that can sometimes be frustrating.

One way to get around these limitations is to use open-source alternatives instead. These alternatives allow you to do anything you want with your device, including installing new software and removing any pre-installed bloatware on your phone or tablet.

This blog post will look at the best open-source alternatives to the Android and iOS operating systems. We’ll be covering a variety of options, from cross-platform mobile operating systems designed for smartphones and the web to open-source mobile operating systems for Android phones.

The Best Open-Source Alternatives to Android and iOS

We compiled a list of the top 7 open-source operating systems for Android and iOS devices below:

  • Sailfish OS
  • Replicant
  • LineageOS
  • Ubuntu Touch
  • Firefox OS
  • Linux Mint
  • GrapheneOS

Sailfish OS

Sailfish OS has been developed by the Finnish company Jolla. It is the only open-source mobile operating system with a native user interface. Sailfish OS is designed to be an alternative to Android and iOS, focusing on privacy and security.

The operating system is based on the Linux kernel, Mer Core, and Qt5. The interface consists of a gesture-based home screen, which allows users to swipe between screens.

The OS has been developed to provide a viable alternative to Android, which Jolla claimed was a closed ecosystem. Sailfish OS also offers greater privacy protection than Android and claims to be more secure than iOS because it does not require a jailbreak or root.

It is available for various smartphones, including the Nokia N9, Sony Xperia X, OnePlus One, and some models of Samsung Galaxy S3.

In addition to its mobile phone offerings, Sailfish OS has been ported to other devices, such as tablet computers and smartwatches.


Mozilla Corporation first conceived the idea of Replicant in response to the dominance of Android in the global smartphone market in 2009.

The goal of Replicant was to create a free and open-source operating system that could rival Android. The developers wanted to ensure that it was not just an Android clone but had unique features and functions.

The development team’s main focus was security, privacy, stability, and performance. They also wanted to ensure that there were no proprietary components in the code, which would have violated their principles as an organization.


LineageOS is a free and open-source operating system for mobile devices like smartphones and tablets built on the Android mobile platform. It is the replacement for the incredibly well-liked custom ROM CyanogenMod, which was forked in December 2016 when Cyanogen Inc. declared it would no longer be developing the project and shutting down the infrastructure supporting it.

LineageOS features a variety of enhancements over other Android-based operating systems, such as a heavily modified user interface, live screen rotation, an A/B partition scheme allowing for more than one configuration to be stored on the device at once, support for dual SIM cards or devices without SIM slots such as tablets, higher quality audio playback with an offload to hardware codecs when supported by hardware (such as in some Samsung devices), and a large community of developers adding additional features.

Ubuntu Touch

Ubuntu Touch is a mobile operating system developed by Canonical Ltd. and Ubuntu Community. It is designed primarily for touch-based devices like smartphones and tablet computers.

The first Ubuntu Touch release was announced on January 29, 2013, and the latest release was announced on July 17, 2017. As of November 2017, more than 10 million active Ubuntu Touch devices are in use worldwide.

Ubuntu Touch is based on the Linux kernel and therefore offers support for various architectures (x86, ARM) and various languages (C++, Python).

Firefox OS

Firefox OS is an open-source operating system for mobile devices. It was developed by Mozilla and launched in 2013.

Firefox OS is a Linux-based operating system, which means it has access to the same range of apps as any other Linux-based operating system. Firefox OS also has its app store, which features apps specifically designed for the platform.

The Mozilla Foundation, which owns Firefox OS, has also developed an app called Gaia that lets users create their customized home screen with widgets and themes.

Linux Mint

Linux Mint is a free, open-source operating system available for computers, smartphones, and tablets. It is a cost-effective alternative to proprietary software products and has been praised for its ease of use.

Linux Mint does not come with pre-installed software but allows users to install their programs. It also has a built-in package manager (apt), making installing new programs easy. Linux Mint offers the same level of security as other operating systems, such as Windows and macOS.


GrapheneOS is a new open-source operating system that brings several features to the table. It is an alternative to Android and iOS and has been in development for the past few years.

The operating system was built on top of Android, so it could take advantage of all the features available on Android while including some additional features. GrapheneOS has been designed with security, offering better protection against malware and other cyberattacks.

Additionally, it has a built-in firewall that helps prevent unauthorized users or apps from accessing your data. You can use this operating system on any device that runs on an ARM processor and download it free from its website.


We hope you enjoyed our article about the top 7 open-source operating systems for Android and iOS devices.

As you can see, there are quite a few options to choose from. If you want to try out some of these operating systems, you can install them on your phone or tablet.

On top of that, if you are a loyal fan of iOS and Android and are looking for the best-used phones for sale, like a used iPhone 13 or Samsung Galaxy S series, visit Phone Daddy’s website because they offer amazing sales where you can get the latest model.

Shafie SEO

SEO Blogger

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