Comparison

iTer vs Java Prep

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

Head to head
About

iTer

This app provides an extensive offline library of over 10,000 interview questions for developers across various programming languages and career paths. It includes company-specific exams, smart learning tools, daily quizzes, and powerful search functionality to aid in interview preparation.

Highlights
  • 10,000+ offline interview questions
  • 16 language tracks and 12 career paths
  • Company exam collections
  • Smart learning management (starring, mastery labels)
  • Daily quiz habit builder
  • Powerful global search
  • Home screen widgets and quick actions
Features
Read full description

iTer is your offline interview question library for developers. For ten years, iTer has helped programmers study smarter for job interviews. Version 10 is a full SwiftUI rebuild that brings 10,000+ curated questions, company exams, and practical study tools into one clean, fast, always-ready app. Whether you are preparing for campus recruiting, switching jobs, or refreshing fundamentals, iTer turns spare minutes into real progress. 1. Massive offline question bank - 10,000+ interview questions, fully offline - 16 language tracks: Objective-C, Swift, Java, C/C++, PHP, JavaScript, Python, SQL, C#, HTML5, Ruby, R, Linux, Big Data, Algorithms, Network Security - 12 career paths: iOS, Java, Web, PHP, Python, Game, Database, Big Data, Linux, Algorithm, and Network Engineering - 12 company exam collections from Google, Microsoft, Baidu, Tencent, Alibaba, JD, 360, NetEase, and more - Multiple-choice and Q&A formats covering language basics, frameworks, algorithms, and common interview topics 2. Smart learning management - Star important questions for quick review before interviews - Recent history picks up where you left off - Mastery labels: unlearned, learned, mastered - Wrong-answer notebook collects mistakes from daily quizzes - Learning stats summarize favorites, wrong answers, and mastery rate 3. Daily quiz habit builder - Five multiple-choice questions every day, seeded by date - Streak counter keeps you motivated - Instant scoring with encouraging feedback - Wrong-answer review shows your answer vs the correct one - Retry today or reshuffle for extra practice 4. Powerful global search - Search questions, answers, and knowledge keywords - Filter by language or company exams - Jump straight to question details from results -【iPad + keyboard】⌘F to search, ⌘1–⌘4 for tabs. In question detail (from a multi-question list): ← Previous, R Random, Space Show answer, → Next — faster review on iPad. 5. Categories and advanced learning - Browse by career path or company exam papers - Advanced learning links to LeetCode, Objc.io, NSHipster, Awesome lists, Gitbook tutorials, and practice projects - External links open inside the app with in-app Safari 6. Home screen widgets - Daily Question: one interview question on your home screen - Quiz Glance: today score and streak - Favorites Glance: track saved questions - Wrong Book Glance: reminders for mistakes to review - Widget background can follow your app theme 7. Home screen quick actions - Long-press the app icon to pin up to 4 shortcuts - Jump to search, daily quiz, favorites, wrong book, categories, feedback, or App Store review - Deep links open the right screen instantly 8. Rich question detail experience - Tap to reveal or hide answers for Q&A items - Interactive multiple-choice practice before seeing explanations - Toolbar actions for favorite, mastery, and share - Copy question and answer text for notes - Shuffle question order in lists - Share cards render a long image with QR code for friends and teammates 9. 15 beautiful themes - Presets including Gold, Ocean Blue, Forest Green, Rose Pink, and more - Custom accent color support - Light, dark, and system appearance - List and grid layouts across language, category, and question screens 10. Native multi-platform experience - iOS and iPadOS 16: full features including widgets and quick actions - macOS 13: native Mac app with tabs, keyboard shortcuts, share cards, and tips 11. Settings and support - Toggle favorites and recent sections on the Languages tab - In-app feedback email to the developer - Tip the developer to support ongoing updates - About page with version info and open-source credits Why iTer - Ten years focused on developer interviews - Offline-first study, anywhere anytime - Questions, quizzes, wrong book, and widgets in one learning loop - One purchase, works on iPhone, iPad, and Mac Add iTer to your home screen or Dock. Five questions a day adds up to interview confidence.

About

Java Prep

Features
Read full description

Java Interview Guide is your ultimate companion for mastering Java interviews. It offers a curated collection of common interview questions, detailed answers, and practical examples covering core Java, data structures, algorithms, Spring, multithreading, databases, and more. Whether you're preparing for your first job or aiming for a top tech company, this app helps you review efficiently, practice smart, and stay confident. --I hope every job seeker can find a job that satisfies them [Java Interview Guide – Auto-Renewing VIP Subscription Terms] — VIP Membership Benefits: Subscribing unlocks full access to all interview question types, including intermediate and advanced questions, real-world scenarios, questions from top tech companies, system design topics, web-related questions, and ongoing content updates. Enjoy unlimited access with no ads. — Subscription Plans & Pricing: Java Interview Guide – Monthly VIP Membership (Auto-Renewing): US$0.99/month (renews automatically every month), with a 7-day free trial. Java Interview Guide – Quarterly VIP Membership (Auto-Renewing): US$2.99/quarter (renews automatically every 3 months), with a 7-day free trial. Java Interview Guide – Semi-Annual VIP Membership (Auto-Renewing): US$5.99/half-year (renews automatically every 6 months), with a 7-day free trial. — Payment Terms: Payment will be charged to your Apple ID account upon confirmation of purchase. Your subscription will automatically renew and be charged within 24 hours prior to the end of the current billing period. You can manage and cancel your subscription in your Apple ID account settings. — Free Trial Policy: A 7-day free trial is available for first-time subscribers. If you cancel during the trial period, you won’t be charged. You may continue using the service until the end of the trial. — How to Cancel Auto-Renewal: To avoid automatic renewal, cancel at least 24 hours before the current period ends. Go to: Settings > Apple ID > Subscriptions and turn off auto-renew. — Privacy Policy & Terms of Use: Privacy Policy: https://blog.csdn.net/MyEclipse927/article/details/133379708?spm=1001.2014.3001.5501 Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iTer4 screens
Java Prep4 screens

Verdict

The call

The clearest difference is price: Java Prep at Free against iTer's $0.99. iTer's advantage is update cadence (every 4 days vs every 6 weeks). On ads, 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

Java Prep is free to download; iTer costs $0.99 up front. iTer sells 1 one-off in-app purchase and Java Prep sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iTer ships an update every 4 days, Java Prep every 6 weeks. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

Scorecard2 real differences · 8 level
iTer versus Java Prep: the parameters behind the verdict, then further details
ParameteriTerJava Prep
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Positive reviews60.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 4 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationPaid—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS16.016
Further details — not scored
Size19 MB17 MB
Age rating4+9+
Developer天从 何嘉 邱

In-app purchases

1 purchases

iTer

One-time1
  • Tip the developer$0.99
3 purchases

Java Prep

Subscriptions3
  • Monthly Membership7 Days trial$0.991 Month
  • Quarterly Membership7 Days trial$2.993 Months
  • Semi-Annual Membership7 Days trial$5.996 Months

Questions

Is iTer free?
iTer costs $0.99, and also offers in-app purchases.
Is Java Prep free?
Java Prep is free to download, with in-app purchases available.
Do iTer or Java Prep have ads?
Neither iTer nor Java Prep shows ads.
Which is updated more often, iTer or Java Prep?
iTer ships an update every 4 days, and Java Prep every 6 weeks. Most recently, iTer was updated on September 19, 2026 and Java Prep on September 14, 2026.

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