KING OF MATH vs Referee Race
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KING OF MATH
Master arithmetic operations like addition, subtraction, multiplication, and division with this engaging learning app. It features intuitive handwriting input and adaptive difficulty to suit all ages, making learning fun and effective.
- Addition practice
- Subtraction practice
- Multiplication practice
- Division practice
- Handwriting input
- Adaptive difficulty
- Reward system
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Learn and improve math and arithmetic (+ - × ÷) effectively & fast. Suitable for all ages. All math arithmetic operations (+ - × ÷) * Addition (+) * Subtraction (-) * Multiplication (× including small multiplication tables) * Division (÷) HIGHLIGHTS * Write naturally as on paper We have developed an intuitive handwriting input. * Increasing difficulty Tasks automatically adapt to the children's abilities. * Learning playfully The app motivates with great rewards and a bonus system. WHAT ELSE * No ads. * No personal data. * Fair and transparent. * Developed with teachers and educators.
Referee Race
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Referee Race is the ultimate training app for karate referees and practitioners who want to master the rulebook in a fun and competitive way. Whether you're preparing for a referee certification or simply want to deepen your knowledge of karate rules, Referee Race makes learning engaging and competitive. GAME MODES • Quiz : Test your knowledge across Kumite, Kata, or mixed modules • Daily Challenge : A new timed quiz every day to keep your skills sharp • Duels : Challenge another player in real-time 1v1 battles • Exam : Simulate real exam conditions with 50 questions in 20 minutes • Group Quiz : Compete in multi-player sessions with a live leaderboard TRACK YOUR PROGRESS View your stats, climb the leaderboards (daily, weekly, seasonal, global), and earn badges as you improve.
Screenshots
Verdict
The clearest difference is in-app purchases: Referee Race at none against KING OF MATH's 5. KING OF MATH's advantage is iOS requirement (12.0 vs 15.1). On price, ads 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. KING OF MATH sells 5 one-off in-app purchases. Referee Race asks for nothing beyond the download.
| Parameter | KING OF MATH | Referee Race |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (1.3K ratings) — better | — |
| Positive reviews | 44.1% of reviews | — |
| Number of ratings | 1.3K — better | — |
| Update frequency | Every 5 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 102 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | wonderkind GmbH | Cedrick Wong |
Bugs and requests
KING OF MATH
Reported bugs
3 issues- Doesn't recognize simple numbers like 4 and 9
- Accepts wrong answers as correct
- Slow response time on some devices
Requested features
4 requests- Allow keyboard input or numeric keypad
- Calibration option for handwriting recognition
- Difficulty levels for different age groups
- More advanced math operations like multiplication and division
Referee Race
Not enough reviews yet to summarise bugs or requests.
In-app purchases
KING OF MATH
- Subtraction Deck$1.99
- Large multiplication tables$1.99
- Small multiplication tables$1.99
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- Division$1.99
- Full Version Bundle$4.99
Referee Race
No in-app purchases
Questions
Is KING OF MATH free?
Is Referee Race free?
Do KING OF MATH or Referee Race have ads?
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