Dominates the world of mobile technology Android, occupying the lion's share of the global market, but it is far from the only operating system capable of running a modern smartphone. Many users don't even think about the existence of other platforms until they encounter the limitations of Google services or want to find a device with a unique approach to the interface. Understanding what systems there are other than Android helps you choose a gadget that better suits your specific needs, be it maximum privacy or working in a specific manufacturer's ecosystem.
Alternative OSs are often developed by large tech giants to create a closed ecosystem or by independent communities for ideological purposes. For example, iOS from Apple offers a completely different interaction experience, while Chinese developments like HarmonyOS are trying to unite all smart home devices into a single network. Exploring this landscape is an eye-opener to the different ways engineers can tackle touchscreen, memory, and process management challenges.
In this article, we'll take a closer look at mainstream and niche platforms, assess their viability, and determine whether they're worth switching to for the average user. You'll learn why some systems have disappeared while others are just gaining momentum, and what hidden capabilities they provide.
The dominant alternative: iOS and iPadOS
Android's most obvious and powerful competitor is the operating system iOSdeveloped by Apple. This is a closed platform that is installed exclusively on iPhone devices, providing deep integration of hardware and software. Unlike the openness of Android, iOS offers a strictly controlled environment where all apps undergo strict moderation before hitting the App Store. This approach guarantees a high level of security and optimization, although it limits the freedom of customization.
From a technical point of view, iOS is based on the Darwin (BSD Unix) kernel, which makes it extremely stable and reliable in working with memory. iPadOS, which is an offshoot of iOS for tablets, adds multitasking features such as Split View and mouse cursor support, turning the tablet into a full-fledged work tool. Users often note the smoothness of animations and the absence of lags, even on models of previous years.
⚠️ Attention: The transition from Android to iOS can be difficult due to the closed file system. You can't just copy files like a flash drive without using iTunes or Finder.
The Apple ecosystem is built around the concept of “devices working together.” Features like AirDrop, Handoff, and a universal clipboard create an experience that is difficult to replicate on other platforms. However, for this comfort you have to pay a high price both when purchasing a device and when purchasing digital content.
Chinese ecosystems: HarmonyOS and Hongmeng
In response to US sanctions and restrictions on access to Google services, Huawei is actively developing its own platform called HarmonyOS (known as Hongmeng in China). Originally conceived as an Internet of Things (IoT) system, it has evolved into a full-fledged Android replacement for smartphones. The main feature is the microkernel architecture, which allows you to run the system on devices with different amounts of RAM, from smart watches to TVs.
HarmonyOS uses a distributed architecture, which means the ability to combine the resources of several devices. For example, you can start a video call on your phone and continue it on your tablet or smart car screen without loss of quality or delays. The system supports launching Android applications (APK files) through a compatibility layer, which is critical for the survival of the platform at launch.
- 🚀 Speed: Optimized Ark Compiler engine speeds up application launch and interface operation.
- 🔗 Connectivity: Seamless connection with Huawei HiLink devices without the need for complex settings.
- 📱 Interface: Widgets and gesture controls are strongly reminiscent of iOS, but with Material Design elements.
Despite ambitious plans, global distribution of HarmonyOS outside China faces difficulties due to the lack of popular Western services. However, for users in Asia, this is already a full-fledged alternative that offers a unique experience.
Niche and specialized platforms
In addition to the giants, there are systems focused on specific tasks or market segments. One of the most famous is KaiOS an operating system for feature phones. It is based on web standards technologies (HTML5, CSS, JavaScript) and allows you to run lightweight versions of popular applications like WhatsApp, Google Maps and YouTube on devices with minimal specifications.
Another interesting player was Firefox OS (the project is closed, but the ideas live on KaiOS), which tried to make web applications native. Today it is also worth mentioning AsteroidOS an open system for smartwatches, created as an alternative to Wear OS. It is light, fast and completely free from Google trackers.
Microkernel (LiteOS)| System | Device type | Baseline | Status |
|---|---|---|---|
| KaiOS | Push-button phones | Gecko (Linux) | Actively developing |
| HarmonyOS | Smartphones, IoT | Actively developing | |
| iOS | iPhone, iPad | Darwin (Unix) | Actively developing |
| Sailfish OS | Smartphones | Mer core (Linux) | Niche product |
There are also more exotic options, such as PinePhone with Ubuntu Touch or PostmarketOS. These devices are designed for Linux enthusiasts who want complete control over their hardware. However, they are not yet ready for everyday use by the average person due to difficulties with batteries and messenger compatibility.
Custom firmware based on Android (AOSP)
When they talk about systems “other than Android,” they often forget that Android itself can be different. There is a project AOSP (Android Open Source Project) - this is a “pure” system code without Google services. On its basis, independent operating systems are built, which are formally Android, but in philosophy and functionality they are completely different products.
A striking example is GrapheneOS or CalyxOS. These systems are focused on maximum privacy and security. All Google trackers have been removed from them, and the mechanisms of memory and network operation have been changed. The user receives a device that physically cannot transfer your data to giant corporations without your knowledge.
Installation of such systems requires unlocking the bootloader and often purchasing specific devices (for example, Google Pixel, which best support custom software). This is the path for those who are willing to sacrifice the convenience of banking applications and some games for the sake of privacy.
Why do other systems lose?
It would seem that diversity is good. Why is the market captured by two players? The main problem of alternatives is network effect. Application developers primarily create software for Android and iOS. Launching a project for a third platform requires huge investments, which often do not pay off due to a small audience.
The second factor is the cost of infrastructure. Supporting app stores, cloud storage, cards and payment systems costs billions of dollars annually. Small companies or communities of enthusiasts simply cannot compete with the budgets of Google and Apple. This is why many projects, such as Windows Phone or Tizen for smartphones, were closed.
⚠️ Attention: When you buy a device on a rare OS (for example, an old Windows Phone or Firefox OS), you risk being left without application support. Many services have already stopped working on these platforms.
In addition, users get used to certain patterns of interface behavior. A sharp change in the logic of work (as happened during the transition from push-button to touch-sensitive phones) causes rejection among the mass audience. Therefore, new systems often copy the design of Android or iOS to lower the barrier to entry.
The future of mobile operating systems
The mobile OS market is stagnating, but this is the calm before the storm. The development of technologies 5G, screens and artificial intelligence requires new approaches to resource management. Perhaps the future lies in systems that do not have a fixed interface at all, but adapt to the context of use.
Chinese developers are actively investing in creating their own kernels so as not to depend on American technologies. If HarmonyOS we manage to scale beyond China, we could see real tripolism in the market. Also, do not discount the possible revival of interest in Linux desktops in mobile format with the development of cloud computing.
Ultimately, the choice of system is a choice of philosophy. Android gives freedom and accessibility, iOS gives stability and an ecosystem, and alternatives give uniqueness and independence. Understanding what systems there are other than Android allows you not just to consume technology, but to consciously choose a tool for life.
Is it possible to install Android applications on HarmonyOS?
Yes, modern versions of HarmonyOS (especially global ones) have a compatibility layer that allows you to run APK files. However, native HarmonyOS applications (HAP) are faster and more energy efficient.
Is iOS safer than Android?
iOS is considered safer for the average user due to the closed system (“walled garden”), where it is impossible to install an application from an unknown source. Android is safe with proper configuration and use of Google Play Protect, but it gives more freedom, which increases risks.
What is KaiOS and is it worth installing?
KaiOS is a system for push-button phones. You cannot “install” it on a smartphone; it is designed for specific hardware with physical buttons and low screen characteristics.
Why was Windows Phone closed?
Microsoft closed Windows Phone due to lack of interest from application developers. Without popular applications (Instagram, Snapchat, banking clients), users moved en masse to Android and iOS, creating a vicious circle.