The Big Duel vs Math Decoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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)
Math Decoder
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Math Decoder challenges students to solve math problems presented as codes. Find the answer to addition, subtraction, multiplication and division problems by studying the symbols and decoding the numbers. Completing the activities involves using mental math skills. Math Decoder is designed to be a quick math exercise that teachers can use to provide practice in problem solving. Earn a trophy by answering 20 problems. Special sound effects make the game fun to use and the interactive design facilitate problem solving strategies.
Screenshots
Verdict
The clearest difference is price: The Big Duel at Free against Math Decoder's $0.99. The Big Duel also leads on update cadence (every 12 months vs every 36 months) and device support (3 vs 1). Math Decoder's advantage is in-app purchases (none vs 1). On ads 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
The Big Duel is free to download; Math Decoder costs $0.99 up front. The Big Duel sells 1 one-off in-app purchase. Math Decoder asks for nothing beyond the download.
The Big Duel ships an update every 12 months, Math Decoder every 36 months. The most recent releases landed on June 24, 2026 and September 20, 2026 respectively.
| Parameter | The Big Duel | Math Decoder |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 12 months — better | Every 36 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 10 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | ilan TETRUASHVILI | Ventura Educational Systems |
In-app purchases
The Big Duel
- Remove Ad's$0.99
Math Decoder
No in-app purchases
