Menrong Jiang

Menrong Jiang

MRJC — a husband-and-wife team
#102119311 follower0 following
⚡️ 4 day streak
>1,000All time
6 KP

About

MRJC is a husband-and-wife team from Taiwan — our initials, not a company. Math Game is published on the App Store under Menrong's developer account, and we build it and answer here together. 60-second mental-math rounds that make practice actually stick. Free, no ads, no account, no in-app purchases.

Badges

Tastemaker
Tastemaker
Gone streaking
Gone streaking
Gone streaking 5
Gone streaking 5

Maker History

  • Math Game
    Math GameGet good at mental math in 60-second rounds
    Sep 2026
    • 🎉
    Joined Product HuntSeptember 5th, 2026

Forums

•

3d ago

Our 60-second mental math game now runs in the browser, no install needed

Hi PH We launched Math Game here in September as an iOS app. A lot of people don't want to install an app just to try something, so we built a version that runs straight in the browser.

What it is: 60-second rounds of mixed +, , and . Every wrong answer is explained right away, so you learn from the miss instead of just losing points. A little fox keeps you company. Free, no ads, no account.

Try a round: https://mathgameapp.app/en

It's also available in 10 other languages: /ja /ko /es /pt /fr /de /id /hi /tw /cn

•

2mo ago

Math Game - Get good at mental math in 60-second rounds

Spark the motivation to learn, enjoy it, and get good at math without even noticing. Math Game is a 60-second arithmetic game. Tap an operation and the round starts: 3 lives, questions that get harder as you go, and every miss reviewed with the correct answer. 15 buddies, sticker albums, a daily goal and a streak ladder keep you coming back. Weekly and all-time world leaderboards. No login, no ads, no in-app purchases. Built on retrieval practice and spaced repetition.
•

2yr ago

Pitch your product with max 5 words. Can you?

Vaizo - Maximize crypto gains with AI Whats yours? If you can do with less than 5 words, you have my respect lol :P
View more