# Angry Math: True or False — True or false mental math > True or false mental math (iPhone/iPad app by Tien Dat Nguyen.) - Source: https://appshunter.io/ios/app/angry-math-true-or-false/id6765843459 (this page in markdown: same URL + `.md`) - Developer: [Tien Dat Nguyen](https://appshunter.io/developer/1896097777) - Category: Games, Education, Puzzle, Trivia - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 18.0 · 18 MB - Languages: American English - Released: 2026-05-18 - Data updated: 2026-10-25 ## What is Angry Math? Is it right? You get about a second. A sum flashes up with an answer. Tap True or False before the fuse burns out. That's the whole game, and it's harder than it sounds. MEET GRUMP The whole screen is Grump's face, and Grump hates it when you're good. Every right answer winds it up: the background heats from cold blue to boiling red, the brows drop, the mouth clenches. Keep a streak going and you hit meltdown. Miss, and it smirks. ONE ENDLESS RUN, THREE LIVES • True or false, so anyone can play from the first tap • A burning fuse that starts under two seconds and shrinks towards one • Three lives, and every 15 in a row wins one back • It ramps up on its own: quick sums, bigger numbers, times tables, then two-step problems THE DAILY 40 The same 40 sums for everyone, every day. One shot. Keep your daily streak going, share your grid without spoiling the answers, and get a reminder at 9am if you want one. CHASE YOUR BEST Game Center leaderboards for your best Endless run and for the Daily. The game tells you exactly how close you came, so "one more go" is never far away. FEELS RIGHT Adaptive sound and music that build with your streak, plus haptics on every answer. FAIR AND FRIENDLY • Free, with no ads • No account needed, and it plays offline • Relaxed timer if you want 60% more time (relaxed runs stay off the leaderboards) • Made for iPhone, iPad and foldable iPhone Great for quick mental math practice, sharpening times tables, or just seeing how fast your brain really is. Angry Math Pro lets you play missed Daily challenges and replay past days, plus unlock the Dusk, Tide and Mono looks with matching app icons. One purchase, yours for good. Archive replays are not ranked and do not change your Daily streak or today’s attempt. Ember, the original look, is always free. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://angrymath.app/privacy ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Support Angry Math | $1.99 | one-time | ## Is Angry Math safe? Not enough ratings yet to assess Angry Math. ## Is Angry Math legit? Angry Math: True or False appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Angry Math is 65 out of 100 points across 7 verification signals from App Store and developer data. ## Version history (last 5 releases) ### 2.0.0 — 2026-10-14 Angry Math 2.0 is a ground-up rebuild. • Meet Grump: the screen is a face that gets angrier the better you play • A real burning fuse, a heat-mapped run and a new near-miss Game Over • The Daily 40: the same questions for everyone, once a day, with streaks and a shareable grid • Game Center leaderboards for Endless and the Daily • No menus to wade through: just tap Play • Made for iPhone, iPad and foldable iPhone Already bought Pro? You keep it: it now unlocks every look and matching icon. ### 1.2.3 — 2026-07-13 v1.2.3 - Bug Fixes and Improvements This update includes small bug fixes and general improvements to keep the experience smooth and reliable. ### 1.2.2 — 2026-07-08 This update includes small bug fixes and general improvements to keep the experience smooth and reliable. ### 1.2.1 — 2026-07-06 v1.2.1 - Pro, Practice Mode, Themes, and More Pro is here. One upgrade unlocks Practice mode, removes banner ads, and opens 9 visual themes with font options. No subscription. Upgrade once, keep everything. PRACTICE MODE (PRO) Choose your difficulty, set your own per-problem timer, and drill without leaderboard pressure. Build real speed before you go live. Super Hard difficulty is included. VISUAL THEMES AND FONTS (PRO) Pick from 9 color themes - including the new Parchment theme - with a live preview before you commit. Pair with your choice of font for a setup that feels personal. SOUND Five distinct soundpacks to choose from. Same pressure, different vibe. MULTIPLAYER POLISH Rematch now requires both players to agree before the next round starts. A live status indicator shows whether your opponent is still in or already timed out. WIN/LOSE OVERLAYS Local 2-player now shows a crown on the winner, an X on the loser, and a draw icon when it ends level. KEYCHAIN SYNC Your player name and local high scores survive a reinstall and transfer automatically to a new device via iCloud Keychain. DETAILS - Reset Progress in Settings - clear all saved data and start fresh - New Record badge animates on Game Over when you beat your personal best - Time's Up! flash distinguishes timeout from wrong answer - Darker gameplay backgrounds for a more immersive feel - Button press animations on all main controls - Review prompt appears after 5 completed games ### 1.0.0 — 2026-05-18 No release notes. ## More apps by Tien Dat Nguyen - [Hue Check - Color Picker](https://appshunter.io/ios/app/hue-check-color-picker/id6777696570) - [CountUp - Tally Counter Widget](https://appshunter.io/ios/app/countup-tally-counter-widget/id6777696578) - [Milestones: Days & Memories](https://appshunter.io/ios/app/milestones-days-and-memories/id6778199024) - [NoiseNest: Brown Noise Sleep](https://appshunter.io/ios/app/noisenest-brown-noise-sleep/id6786730181) - [SubSnap - Subscription Tracker](https://appshunter.io/ios/app/subsnap-subscription-tracker/id6786732038) All apps by Tien Dat Nguyen: https://appshunter.io/developer/1896097777 --- *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 2026-10-25.*