246+ iOS apps curated and reviewed
Operating Systems Quiz (BSCS) is the household name in operating systems, but it's far from the only option. We track 246+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | Yes | Yes | May 2026 |
| 2 |  | Free | 5.0★ (1) | No | Yes | May 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | 3.7★ (21) | No | No | Aug 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | Free | 4.7★ (18M) | Yes | Yes | Aug 2026 |
| 7 |  | Free | — | — | No | Jul 2026 |
| 8 |  | Free | 2.0★ (273) | No | No | Aug 2026 |
Master operating system concepts through concise study sessions and interactive quizzes. This app offers audio pronunciation of technical terms and bookmarking for flashcards and questions, aiding efficient learning and progress tracking.
This utility app enables staff to scan guest tickets using their device's camera. It quickly verifies if a ticket is valid or invalid for entry. Designed for efficient event and cruise management.
Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.
This app helps retail frontline associates manage their work schedules, offering features like shift swapping, bidding, and time-off requests. It aims to improve work-life balance by providing easy access to schedule details and availability management from any device.
Manage hotel operations and tasks remotely from your mobile device. Track housekeeping status, manage guest messages, and stay organized with task management features. Improve property efficiency and guest service on the go.
Visualize real-time energy market data and grid conditions. Monitor supply, demand, prices, and fuel mix 24/7 with instant system notifications.
Track California's power grid status, energy prices, and renewable production. Receive alerts for conservation needs and monitor supply adequacy up to seven days ahead. View detailed supply breakdowns and historical data.
A fast and secure web browser offering voice search capabilities. It protects your data on public Wi-Fi and from malicious websites, with an Incognito Mode for private browsing. Customize new tabs and sync bookmarks across devices.
A modern, web-based operating system designed for intuitive interaction across mobile, tablet, and desktop devices. It offers a powerful and simple ecosystem for digital platform engagement.
Monitor your electricity supply's generation sources and identify the cleanest times to use power. See the carbon impact of electricity generation, compare your region, and get notified of decarbonization milestones. This app focuses on the electricity system.
Learn fundamental operating system concepts and interview questions with this educational app. It offers a user-friendly interface to explore topics, save favorites, and customize your reading experience. Sharpen your technical knowledge for career advancement.
This app provides a unified system to track goals, habits, health, finances, and personal growth. It translates long-term aspirations into actionable daily tasks, offering a clear plan and visible progress through gamified elements like XP and leveling up.
