Comparison

The Big Duel vs EPPP Exam by Rocket Prep 2026

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

Head to head
About

The Big Duel

Engage in a fun and addictive game to sharpen your math abilities. Choose from three distinct game modes, including math calculations, size comparisons, and shape recognition. Compete head-to-head with another player on a single device or race against the clock.

Highlights
  • Multiple game modes (Math, Bigger/Smaller, Shapes)
  • Supports addition, subtraction, multiplication, division
  • 1v1 multiplayer on one device
  • Play against the clock
  • Interactive learning with animations
  • Adjustable difficulty
Features
Read full description

The Big Duel The Bid Duel is a fun addictive game where you can test your math skills. You can choose between 3 game modes and play 1vs1 or 1vsTime Game Modes: - Math - Bigger/Smaller - Shapes Choose between math calculations like: * Addition * Subtraction * Multiplication * Division Choose hardness and play 1vs1 on 1 device or against the time. Let your kids train their math skills with lot of fun and nice animations (Blueprint). Have fun How To Play? Game Mode - Math You will get a math calculation and 3 different results, press the right result to move the rocket to earth. Game Mode - Big/Small You will get a math calculation and a random number in the middle button (that is NOT the right result). Now you must find out if the right result of the calculations is BIGGER or SMALLER than the number in the middle button. Game Mode - Shapes You will see a random shape and you will get 3 different results. Only one result is the right side amount of the shape. Press it to move the rocket to earth. (Circle has 0 sides, Triangle has 3 side)

About

EPPP Exam by Rocket Prep 2026

Features
Read full description

Advance Your Career with the EPPP Exam Elevate your professional journey with Rocket Prep's mobile-optimized study app for the EPPP Exam (Examination for Professional Practice in Psychology). This certification is essential for psychologists, validating their expertise in various aspects of psychological practice. Whether you’re starting your career or looking to enhance your credentials, this app offers curated content, interactive study tools, and personalized progress tracking to help you succeed. Key Features Extensive Question Bank Practice with a comprehensive set of questions developed by experts in psychology. Engage with scenario-based items that reflect real exam challenges, including assessment, intervention strategies, and ethical considerations. Detailed Explanations & References Enhance your understanding of both correct and incorrect answers to strengthen your clinical reasoning skills. Stay updated with the latest research and best practices in psychological practice. Customizable Study Modes Choose quick quizzes for efficient on-the-go review or full-length simulated exams that replicate the official test experience. Filter questions by topic and complexity to tailor your study sessions. Progress Tracking & Analytics Monitor your performance across key areas—accuracy, time management, and topic mastery. Gain insights into your strengths and weaknesses to refine your study strategy. Expert-Led Review Resources Access concise guides covering core EPPP topics: psychological assessment, ethics, and intervention techniques. Reinforce your learning with brief video lessons and audio overviews from experienced psychologists. Active Learning Tools Utilize flashcards, mnemonics, and mind maps to solidify your recall of critical information—such as psychological theories and diagnostic criteria. Engage with interactive study aids that simplify complex concepts. Personalized Study Reminders Set daily or weekly goals to maintain your study momentum. Receive alerts prompting you to revisit challenging material and tackle new questions. Offline Access & Cross-Device Sync Download key materials for seamless offline studying—ideal for busy professionals. Sync your progress across multiple devices to ensure continuity in your study routine. Why Choose This Exam Prep App? Reliable Expertise Content is regularly reviewed and updated by licensed psychologists, ensuring accuracy and relevance to current exam standards. Comprehensive Coverage Address every exam domain, from foundational psychological principles to advanced clinical practices. Elevate Your Career Passing the EPPP Exam can unlock opportunities for specialized roles and increased responsibilities, helping you make a significant impact in the field of psychology. Start Your Journey Today Don’t let uncertainty or a demanding schedule hold you back. Download this powerful exam prep app now to begin a structured and flexible study plan. With consistent practice, real-time feedback, and high-quality review materials, you’ll be ready for exam success and to make a difference in psychology. Please note: our app offers premium content labeled as "Pro," which users can access by subscribing. This premium content includes advanced features designed to aid in exam preparation. You can also enjoy the free version, which includes flashcards and the "Today 10 Quiz" feature for daily practice. The free version also offers the "Test Your Knowledge" feature, providing additional opportunities to assess your understanding. Disclaimer: This exam preparation app is an independent resource and is not affiliated with or endorsed by any official testing organization. Always follow EPPP guidelines for certification and professional practice. Find Terms of Use (EULA): https://rocketprep.net/terms-and-conditions.html

Screenshots

The Big Duel4 screens
EPPP Exam by Rocket Prep 20264 screens

Verdict

The call

The Big Duel and EPPP Exam by Rocket Prep 2026 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. The Big Duel sells 1 one-off in-app purchase and EPPP Exam by Rocket Prep 2026 sells 8 in-app purchases, starting at $8.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

The Big Duel ships an update every 12 months, EPPP Exam by Rocket Prep 2026 every 7 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

ScorecardNo meaningful differences
The Big Duel versus EPPP Exam by Rocket Prep 2026: the parameters behind the verdict, then further details
ParameterThe Big DuelEPPP Exam by Rocket Prep 2026
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 12 monthsEvery 7 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size11 MB48 MB
Age rating4+12+
Developerilan TETRUASHVILIDarya Pyzhyk

In-app purchases

1 purchases

The Big Duel

One-time1
  • Remove Ad's$0.99
8 purchases

EPPP Exam by Rocket Prep 2026

Subscriptions5
  • EPPP Weekly Full Access$8.997 Days
  • EPPP Monthly Full Access3 Days trial$22.991 Month
  • EPPP Monthly Full Access$22.991 Month
Show 2 more
  • EPPP Quarterly Full Access$49.993 Months
  • EPPP Quarterly Full Access3 Days trial$49.993 Months
One-time3
  • EPPP_mock_tries_1$4.99
  • EPPP_mock_tries_3$9.99
  • EPPP_mock_tries_5$14.99

Questions

Is The Big Duel free?
The Big Duel is free to download, with in-app purchases available.
Is EPPP Exam by Rocket Prep 2026 free?
EPPP Exam by Rocket Prep 2026 is free to download, with in-app purchases available.
Do The Big Duel or EPPP Exam by Rocket Prep 2026 have ads?
Neither The Big Duel nor EPPP Exam by Rocket Prep 2026 shows ads.
Which is updated more often, The Big Duel or EPPP Exam by Rocket Prep 2026?
The Big Duel ships an update every 12 months, and EPPP Exam by Rocket Prep 2026 every 7 months. Most recently, The Big Duel was updated on November 1, 2026 and EPPP Exam by Rocket Prep 2026 on October 30, 2026.

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