One By One - Math Game
Brice Brown · Education
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Chart standing · US
What changed · US
Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.
Test Prep Terminal: Standarized-style word problems, now with 30 new question types and 53 new problems. Every question shows a worked solution. Daily Drill: 10 questions in 2 minutes. Keep your streak going, earn in-game cash, and review every answer when you're done. Find your speed: new players take a quick timed check and get a baseline and a plan for their goal. Sandbox: Test Prep now works in the sandbox, with bigger, easier-to-tap controls. More room on screen: practice screens now use the full height on newer iPhones, and layouts are tuned for every iPhone and iPad in both orientations. Hardware keyboard support: A–D or 1–4 to answer, Enter to continue. Fixes: study reminders now repeat, sounds respect the silent switch, artifacts give the right bonuses, Test Prep answers are graded correctly, and cloud sync no longer loses Test Prep progress.
Ratings breakdown · US
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In-app purchases · US
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About
One By One is a retro math study game built for middle and high school students looking to level up their mental math skills. Featuring randomly generated problems, the app lets you switch from basic arithmetic to advanced calculus. You can also target specific practice areas using the One By One Battles mode or the premium Sandbox mode. Key Features Retro Calculator Aesthetic: Enjoy a nostalgic UI designed with classic Unicode and ASCII art, complete with satisfying mechanical key clicks and atmospheric background music. Four Math Disciplines: Practice everything from basic arithmetic and high school algebra to trigonometric functions (complete with a built-in unit circle) and calculus derivatives. Leveling System: Progress all the way from Level 1 to 99, unlocking brand-new question tiers every ten levels. AI Battles & Training: Test your speed in targeted training modes or race against AI opponents to earn in-game rewards. Artifacts & Upgrades: Solve rare "Golden Problems" to collect 25 unique math artifacts featuring 9 distinct upgrades to shape your strategy. Leaderboards & Achievements: Compete across 5 specialized leaderboards, including a balance-based leaderboard, and uncover hidden achievements. Download One By One and start solving math faster than your teacher! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What's new · 1.9.3
Test Prep Terminal: Standarized-style word problems, now with 30 new question types and 53 new problems. Every question shows a worked solution. Daily Drill: 10 questions in 2 minutes. Keep your streak going, earn in-game cash, and review every answer when you're done. Find your speed: new players take a quick timed check and get a baseline and a plan for their goal. Sandbox: Test Prep now works in the sandbox, with bigger, easier-to-tap controls. More room on screen: practice screens now use the full height on newer iPhones, and layouts are tuned for every iPhone and iPad in both orientations. Hardware keyboard support: A–D or 1–4 to answer, Enter to continue. Fixes: study reminders now repeat, sounds respect the silent switch, artifacts give the right bonuses, Test Prep answers are graded correctly, and cloud sync no longer loses Test Prep progress.
Details