Comparison

OS Interview Questions vs Last Days Devs

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OS Interview Questions

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.

Highlights
  • Operating system overview
  • Functions of operating systems
  • Types of operating systems
  • Embedded OS interview questions
  • User-friendly interface
  • Personalized library for favorites
  • Customizable themes and fonts
Features
Read full description

The OS Interview Questions app will teach you all the basics of operating system interview questions with answers. OS (Operating System) is basically system software that manages computer hardware and software resources. Since everything is automated and technology has risen, having technical knowledge would help us to exceed in our career. In the OS app, we get to learn about operating system overview, functions of operating systems, OS definition, types of operating systems, popular operating systems, embedded OS interview questions, and concepts of operating systems. FEATURES OF THE APP: • The OS interview questions app has a very user-friendly interface. You just have to open the app and select any topic you want to learn about, and all the answers will be displayed. • The app has a separate folder called "Library”, which can be used as a personal reading list of topics you wish to learn in the future and can also add to favourites any topic you enjoyed and loved learning. • Themes and Fonts can be customised according to your reading style. • The app's main motive is to sharpen the user's IQ with all operating system overview.

About

Last Days Devs

Features
Read full description

Whether or not it is the last days for devs, we will be devs. Stop losing precious learning time to spotty WiFi and buffering videos. Last Days Devs is the developer learning platform built for how you actually live — on the subway, in waiting rooms, during lunch breaks, or anywhere life takes you. Download once and learn forever, with zero internet required. Passive video watching doesn't build skills. Our method does: - 1,750+ bite-sized lessons you can finish in 5-10 minutes - 15,000+ practice questions that test real understanding - Multiple formats: code output, fill-in-blank, multiple choice - Instant feedback and detailed explanations LANGUAGES Python, JavaScript, TypeScript, Java, C#, Go, Rust, Ruby FRAMEWORKS React, Vue.js, Angular, Next.js, Spring Boot, ASP.NET Core, Blazor, NET MAUI DEVOPS & TOOLS Docker & Kubernetes, Git, Terminal Mastery CAREER PREP Algorithms & Data Structures, System Design, Interview Mastery MODERN SKILLS Prompt Engineering, Database Design, CSS & Tailwind 300+ IN-DEPTH READING RESOURCES Deep-dive guides on React patterns, authentication, Rust, C#, .NET frameworks, and more all available offline. START FREE, NO TRICKS Five complete tracks are 100% free, forever: - Python - JavaScript - React - Java - CSS No trial periods. No credit card required. No "first lesson free" bait-and-switch. UPGRADE WHEN YOU'RE READY Last Days Devs Pro unlocks all 55 tracks, including advanced frameworks, interview preparation, and emerging skills like Prompt Engineering. BUILT FOR REAL LIFE - Works on planes, trains, and anywhere without WiFi - Pick up exactly where you left off - Track your progress across all courses - Dark mode for late-night study sessions WHO THIS IS FOR - Career changers breaking into tech - Bootcamp grads filling knowledge gaps - Self-taught developers going deeper - Interview candidates who need to practice - Professionals learning new stacks - Anyone tired of coding apps that need constant internet Your commute. Your lunch break. Your time. Make it count. Download Last Days Devs and start learning today Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://docs.google.com/document/d/1cHQ6ijQAnIjswrMV3Bj5dHNTcPJXcDIWu7-iqSTtmCg/edit?usp=sharin

Screenshots

OS Interview Questions4 screens
Last Days Devs4 screens

Verdict

The call

The clearest difference is ads: Last Days Devs at none against OS Interview Questions's shown. Last Days Devs also leads on update cadence (every 6 months vs every 95 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OS Interview Questions sells 1 one-off in-app purchase and Last Days Devs sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OS Interview Questions ships an update every 95 months, Last Days Devs every 6 months. The most recent releases landed on September 28, 2026 and September 24, 2026 respectively.

Scorecard2 real differences · 7 level
OS Interview Questions versus Last Days Devs: the parameters behind the verdict, then further details
ParameterOS Interview QuestionsLast Days Devs
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 95 monthsEvery 6 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size16 MB61 MB
Age rating4+4+
DeveloperRAVINDHIRAN SUMITHRASeungil Park

In-app purchases

1 purchases

OS Interview Questions

One-time1
  • OS Interview Questions$3.99
2 purchases

Last Days Devs

Subscriptions1
  • Monthly Subscription$3.991 Month
One-time1
  • Lifetime Access$5.99

Questions

Is OS Interview Questions free?
OS Interview Questions is free to download, with in-app purchases available.
Is Last Days Devs free?
Last Days Devs is free to download, with in-app purchases available.
Do OS Interview Questions or Last Days Devs have ads?
OS Interview Questions shows ads; Last Days Devs does not.
Which is updated more often, OS Interview Questions or Last Days Devs?
OS Interview Questions ships an update every 95 months, and Last Days Devs every 6 months. Most recently, OS Interview Questions was updated on September 28, 2026 and Last Days Devs on September 24, 2026.

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