📄 Author: Shaik Reshma
📘 Summary: A detailed overview of modern mobile operating systems, their key features, security concerns, and pros/cons.
A Mobile OS manages smartphones, tablets, and wearable devices, enabling them to run apps, manage memory, control networks, and provide user-friendly interfaces. Examples include Android, iOS, and HarmonyOS.
User Interface – Optimized for touch (swipe, tap, pinch).
Multitasking – Run and switch between multiple apps seamlessly.
Connectivity – Includes Wi-Fi, Bluetooth, NFC, etc.
Application Management – Access to native app stores.
Resource Management – Balances CPU, RAM, and battery efficiently.
| OS Name | Type | Highlights |
|---|---|---|
| Android OS | Open Source | Widely used, customizable, but has security flaws like Stagefright & Certifi-gate. |
| iOS | Closed Source | Secure, consistent UX, but limited customization. |
| GrapheneOS | Open Source | Privacy-first, supports sandboxed Google apps. |
| Sailfish OS | Open Source | Gesture-based UI, Android app compatibility. |
| Aurora OS | Closed/Open Hybrid | Russia-based, enterprise/government-focused. |
| Ubuntu Touch | Open Source | Convergence-capable, community driven. |
| Mobian | Open Source | Debian-based, GNOME UI, privacy-focused. |
| Plasma Mobile | Open Source | KDE UI, highly customizable. |
| PureOS | Open Source | FSF-endorsed, tailored for Librem 5. |
| postmarketOS | Open Source | Alpine Linux base, runs on old phones. |
Each OS is analyzed for recent vulnerabilities (2024–2025), including:
Android: CVE-2015-3864, CVE-2025-27363
iOS: CVE-2025-31200
GrapheneOS: CVE-2024-53104, CVE-2024-53197
Ubuntu Touch: CVE-2025-3887, CVE-2025-4664
Others: Kernel-level and open-source library exploits
Mitigation steps such as secure boot, app sandboxing, and regular patches are emphasized.
Each OS is listed with:
✅ Advantages like privacy, customization, and convergence
❌ Disadvantages such as limited device support, sparse app ecosystems, or user complexity
A detailed table compares:
OS type
Kernel used
Security/privacy levels
App ecosystem
Android compatibility
Convergence support
Hardware/device support
User skill requirements
This comparison helps users and developers choose the right mobile OS based on security, performance, flexibility, and support.