# Market Math: Mental Calc — Brain Training & Arithmetic > Mental arithmetic game simulating real-world market transactions in Vietnam and the US. (iPhone/iPad app by Pham Tran Thai Bao.) - Source: https://appshunter.io/ios/app/market-math-mental-calc/id6766735094 (this page in markdown: same URL + `.md`) - Developer: [Pham Tran Thai Bao](https://appshunter.io/developer/1896319810) - Category: Games, Education, Puzzle, Trivia - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 102 MB - Languages: American English - Released: 2026-05-14 - Data updated: 2026-08-25 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/market-math-mental-calc/id6766735094/reviews.md ## What is Market Math? You are shopping at the Ben Thanh Market. 3 lbs of tomatoes at $3.50/lb. Add 2 bunches of water spinach at $1.25 each. The vendor charges $15.00 - what is the change? Tap fast before time runs out! Market Math is a mental arithmetic game built around real Vietnamese market scenarios. Train your brain, sharpen your math speed, and have fun. Bilingual: full Vietnamese and English gameplay. KEY FEATURES 3 game modes: Classic (10 questions), Marathon (endless with 3 lives), Daily Challenge (one play per day, bonus coins) 4 difficulty levels: Easy, Medium, Hard, Very Hard 70+ Vietnamese market items: vegetables, fruits, meat and fish, seasonings, eateries 57 US market items with realistic dollar pricing (English mode) Regional variations (North and South Vietnam): different names and signature dishes 6 themed markets: Ben Thanh, Dong Xuan, Floating Market, Night Market, Phien Market, Minimalist 30+ achievements to unlock MathCoin economy: earn coins from gameplay, spend on power-ups and themes 4 power-ups: Time Boost, Second Chance, Hint, 2x Score Multiplier Daily login bonus and streak rewards Optional gentle reminder notifications WHO IS IT FOR? Students practicing mental arithmetic Adults seeking brain training and cognitive workouts Parents teaching kids real-world money math Anyone curious about Vietnamese culture and markets Brain game enthusiasts who love quick puzzles AUTHENTIC VIETNAMESE EXPERIENCE Market Math is built from real Vietnamese market experiences. Every market scene, item, and price reflects actual shopping in Vietnam. Switch to English mode for US-priced math practice with the same gameplay feel. WHY MENTAL MATH MATTERS Daily mental calculation helps: Sharpen cognitive speed Improve reaction time and arithmetic Boost focus and concentration Reduce calculator dependency Build confidence in everyday transactions FREE TO PLAY - no purchase required Market Math is completely free. Gentle ads support development; optional in-app purchases let you remove ads or buy coin packs. NO INTERNET NEEDED Play anywhere - on the bus, during breaks, before bed. Market Math works fully offline. Download now and start training your brain! ## Key features - Real Vietnamese and US market scenarios - Multiple game modes (Classic, Marathon, Daily Challenge) - Adjustable difficulty levels - Extensive item and price database - Bilingual gameplay (Vietnamese/English) - Offline play - In-app purchases for ad removal/coins ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Remove Ads | $2.99 | one-time | | Coin Pack 50 | $0.99 | one-time | | 150 MathCoins | $2.99 | one-time | | 500 MathCoins | $7.99 | one-time | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/market-math-mental-calc/id6766735094/reviews.md ### 5/5 — Great game so far *2026-05-18* the game is interesting, should consider to adjust the difficult **Developer response:** Thank you very much for your feedback. We've adjusted the difficult of game on upcoming release. ## Frequently asked questions about Market Math ### What is Market Math? Market Math is a mental arithmetic game that uses realistic Vietnamese and US market scenarios to help users practice their math speed and cognitive skills. It offers various game modes and difficulty levels for engaging brain training. ### Does Market Math have ads? Yes, Market Math contains advertisements to support its development. You can choose to remove ads through optional in-app purchases. ### Can I play Market Math offline? Yes, Market Math works fully offline, allowing you to play anywhere without an internet connection. This makes it convenient for playing on the bus, during breaks, or before bed. ### What are the game modes in Market Math? Market Math features three game modes: Classic, which includes 10 questions; Marathon, an endless mode with three lives; and Daily Challenge, offering one play per day with bonus coins. ### How does Market Math help with learning? Market Math sharpens cognitive speed, improves reaction time and arithmetic, boosts focus, and helps build confidence in everyday transactions. It's designed for students practicing mental arithmetic and adults seeking cognitive workouts. ### What is the pricing for Market Math? Market Math is free to play and requires no purchase to start. Optional in-app purchases are available for removing ads or buying coin packs. ### What age rating does Market Math have? Market Math has an age rating of 4+, making it suitable for young children and older users alike. It is available on iPhone, iPad, and iPod. ### How often is Market Math updated? Market Math was last updated on June 6, 2026, with version 1.3.4. The developer, Pham Tran Thai Bao, regularly releases updates to improve the game. ## Version history (last 5 releases) ### 2.1.0 — 2026-08-17 NEW: MARKET SORT — Match-3 with a Vietnamese market twist! • 45 levels across Bến Thành, Đồng Xuân & the Floating Market • Evening Market: a relaxed Match-3 mode with no timer • Match produce, smash crates and haggle with customers • See your goals and star rating as you play Download size nearly halved: 145MB → 75MB, plus bug fixes and performance improvements. ### 2.0.0 — 2026-06-30 Story Mode — Now Available Travel through 6 iconic Vietnamese markets across 150 math scenarios. Learn the trade from 6 master vendors — each with their own voice, dialect, and market secrets. What's New: • Cinematic arrival cutscenes — hear the market's story before you play • Market complete celebrations — earn coins and unlock new themes • Typewriter dialogue with two-tap interaction • Full visual identity overhaul: Chợ Red, Saffron, Bamboo Green • Animated candle countdown timer — flickers when time runs low • Result screen redesigned as a hand-stamped market receipt ### 1.3.4 — 2026-06-06 1. Friend Duel — Challenge friends via QR or 6-digit code. Same questions, highest score wins. 2. Leaderboard — Daily Challenge Top 10 & all-time Marathon rankings are here. Reach #1! 3. Daily Challenge — Unlimited daily replays. Bonus coins on your first run only. 4. Hội Chợ Theme — Meet a different vendor each session. 5 rotating personas for a fresh welcome every game. 5. Fixes & Improvements • Fixed disappearing question cards on iOS when ads loaded • Fixed "Language" label wrapping with large iOS text sizes • Improved leaderboard layout & player highlights • Question card display improvements ### 1.3.1 — 2026-05-20 • Difficulty rebalance — timers now feel fair at every level. Medium gets much more breathing room. • Player Rank System — earn your badge from Market Chick to Grand Master based on every game. • Vendor reactions — each market vendor now reacts to your score with their own personality. • Bug fixes and polish across the board. ### 1.2.1 — 2026-05-15 - Adjusted the timer for Hard & Very Hard modes — more comfortable for solving calculations! - Improved the result notification UI/UX with more diverse, fun, and lively reactions! ## More apps by Pham Tran Thai Bao - [Pomodoro RPG: Focus Timer](https://appshunter.io/ios/app/pomodoro-rpg-focus-timer/id6770516108) - [Idle Legacy: History Strategy](https://appshunter.io/ios/app/idle-legacy-history-strategy/id6775180227) - [Runa: RPG Maker & VN Player](https://appshunter.io/ios/app/runa-rpg-maker-and-vn-player/id6779939767) - [TypeRealm](https://appshunter.io/ios/app/typerealm/id6788426376) - [Later: Journal for Future You](https://appshunter.io/ios/app/later-journal-for-future-you/id6791057374) All apps by Pham Tran Thai Bao: https://appshunter.io/developer/1896319810 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*