Comparison

DevPrep vs InterviewGenie

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

Head to head
About

DevPrep

Features
Read full description

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).

About

InterviewGenie

Features
Read full description

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

DevPrep4 screens
InterviewGenie4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 4 level
DevPrep versus InterviewGenie: the parameters behind the verdict, then further details
ParameterDevPrepInterviewGenie
PriceFreeFree
Update frequencyEvery 2 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size149 MB14 MB
Age rating4+4+
DeveloperThieu KhueAbhinav Jha

In-app purchases

5 purchases

DevPrep

One-time5
  • Backend Scale pack$9.99
  • Data Structure & Algorithms pack$9.99
  • System Design pack$9.99
Show 2 more
  • Frontend Engineering pack$9.99
  • Unlock all Pro Packs$29.99
10 purchases

InterviewGenie

One-time10
  • Coach Top-Up$1.99
  • Drill Top-Up$1.99
  • Lite Pack$3.99
Show 7 more
  • 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

Questions

Is DevPrep free?
DevPrep is free to download, with in-app purchases available.
Is InterviewGenie free?
InterviewGenie is free to download, with in-app purchases available.
Do DevPrep or InterviewGenie have ads?
Neither DevPrep nor InterviewGenie shows ads.
Which is updated more often, DevPrep or InterviewGenie?
DevPrep ships an update every 2 days, and InterviewGenie every 5 months. Most recently, DevPrep was updated on September 24, 2026 and InterviewGenie on September 14, 2026.

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