DevPrep vs InterviewGenie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DevPrep
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You have the coding skills, but can you explain them clearly under pressure? DevPrep is the Offline-First AI Interview Coach designed specifically for Software Engineers. Stop practicing in your head. Start speaking. DevPrep simulates the pressure of a real interview, records your answer, and uses an advanced on-device AI engine to grade your response against ideal technical answers. WHY DEVPREP? • AI GRADING ENGINE: Our local vector-based AI analyzes your speech for technical accuracy, logic, and clarity. Get a score (0-100) instantly. • PRIVACY & FAST: All grading happens securely on your device. Your voice recording is processed locally. • ZERO FLUFF: 250+ curated questions from the current tech industry standards. 5 SPECIALIZED TRACKS: - SOFT SKILLS & LEADERSHIP - DATA STRUCTURES & ALGORITHMS (pro) - SYSTEM DESIGN ARCHITECT (pro) - MODERN FRONTEND ENGINEERING (pro) - BACKEND & DISTRIBUTED SYSTEMS (pro) FEATURES: - Realistic "Interviewer" Audio to simulate pressure. - "Silent Mode" for practicing on the go (multi-choice questions). - Local progress feature to track your mastery. - Offline-First architecture (Privacy focused).
InterviewGenie
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Interview Genie: Your AI-Powered Java Interview Coach Interview Genie is the all-in-one training ground built by developers, for developers. Stop passively reading and start actively preparing with a suite of powerful tools tailored to sharpen your Java, JVM, and backend architecture skills—so you can build confidence and land your next Java role. Whether you’re a junior developer preparing for your first Java interview or a senior engineer aiming for a lead position, Interview Genie adapts your learning path to focus on what really matters—Java fundamentals, JVM internals, concurrency, collections, memory management, performance optimization, and real-world coding challenges. AI-Powered Mock Interviews • Engage with an AI Coach in realistic interview sessions via text or voice • Receive instant, detailed feedback across Clarity, Correctness, and Depth • Use consumable AI credits to analyze your answers and improve faster On-Device AI Processing • AI inference is performed directly on your device for faster, low-latency feedback • Reduces round-trip delays while keeping sensitive input processing local • Designed for efficient, native performance Intelligent Spaced Repetition (SRS) • Daily Review: Smart scheduling resurfaces questions at the right time for long-term retention • Buggy Code Review: Daily sessions focused on identifying and fixing common Java issues Customizable Drills & Practice • Simulate real interview pressure with timed Performance Drills • Practice freely in the Practice Arena (untimed) • Customize sessions by question type (MCQ or open-ended), difficulty, and Java-specific topics Comprehensive Study Guide • Deep dives into Java fundamentals, JVM architecture, concurrency, collections, memory management, and system design • Each topic includes explanations, best practices, examples, and common interview mistakes Widgets for Daily Tracking • Daily review and progress widgets to track your preparation at a glance • Monitor streaks, completed drills, and performance without opening the app Detailed Analytics & History • Review performance across all sessions in one place • Track accuracy, speed, and consistency with clear insights • Filter by topic or session type to identify gaps and blind spots Competitive Progress Tracking • Compare progress across drills and mock interviews • Track improvement over time and stay motivated Unlock Everything with a Subscription • Full access to the Java Study Guide • Unlimited drills and topic-based practice • Daily SRS and Buggy Code sessions • AI credits for coaching and feedback • Option to purchase additional AI credits Stop memorizing. Start understanding. Download Interview Genie and take control of your interview preparation today.
Screenshots
Verdict
The clearest difference is update cadence: DevPrep at every 2 days against InterviewGenie's every 5 months. DevPrep also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support 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
Both are free to download. DevPrep sells 5 one-off in-app purchases and InterviewGenie sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
DevPrep ships an update every 2 days, InterviewGenie every 5 months. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.
| Parameter | DevPrep | InterviewGenie |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 149 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Thieu Khue | Abhinav Jha |
In-app purchases
DevPrep
- Backend Scale pack$9.99
- Data Structure & Algorithms pack$9.99
- System Design pack$9.99
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- Frontend Engineering pack$9.99
- Unlock all Pro Packs$29.99
InterviewGenie
- Coach Top-Up$1.99
- Drill Top-Up$1.99
- Lite Pack$3.99
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- Unlock Only$5.99
- On-Device AI Pack$7.99
- Unlock + AI Lite$8.99
- Plus Pack$8.99
- Unlock + On-Device AI$12.99
- AI Max + Free Unlock$14.99
- Max Pack$14.99









