Intergalactic Algebra vs One By One
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Intergalactic Algebra
Engage with algebra through a collection of space-themed games. Solve mathematical problems to launch rockets and advance your skills. The app aligns with Common Core standards and offers optional reports for progress analysis.
- Algebraic problem-solving
- Rocket launching gameplay
- Common Core aligned math
- Proficiency assessment
- Optional progress reports
- Rewarding gameplay
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Introducing Intergalactic Algebra! A collection of algebra games that challenges you to use various math skills in order to solve mathematical problems in order to launch rockets into space! Intergalactic algebra uses Common Core aligned math. (Follows Common Core standard CCSS.MATH.HS.A.SSE.B.3) Now these basic operations can be used to guide rockets into space and accelerate the space race. Try Intergalactic Algebra! Assess proficiency in addition and subtraction, factoring, functions, multiples of ten, number of solutions, quadratics, rates of change, rocket trivia, systems of equations, and word problems. Rewarding levels of gameplay maintain engagement. You will forget you were doing math as you launch rockets into space! You may optionally buy reports in order to analyze what questions were missed. Teachers and parents may find this optional feature particularly useful. In order to purchase one of these reports, the player must create an account so that they can keep track of their reports and watch as they improve their math skills.
One By One
Practice arithmetic, algebra, trigonometry, and calculus with a retro-style math game. Level up by solving problems, unlock new challenges, and compete on leaderboards. Enhance your skills with artifacts and strategic upgrades.
- Randomly generated math problems
- Leveling system with unlockable content
- Practice arithmetic, algebra, trigonometry, and calculus
- Retro ASCII art and music style
- Leaderboards and achievements
- Math artifacts and upgrades
- AI battle mode for targeted practice
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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/
Screenshots
Verdict
The clearest difference is ads: Intergalactic Algebra at none against One By One's shown. Intergalactic Algebra also leads on review sentiment (100% vs 91%) and iOS requirement (13.0 vs 15.0). One By One's advantage is ratings volume (77 vs 6). On price, rating, update cadence and in-app purchases 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. Intergalactic Algebra sells 10 one-off in-app purchases and One By One sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Intergalactic Algebra against 4.8 for One By One. That said, the two scores are not equally well evidenced: One By One has 77 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 100% of Intergalactic Algebra's written reviews are positive against 91% of One By One's.
Intergalactic Algebra ships an update every 3 weeks, One By One every 2 weeks. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.
| Parameter | Intergalactic Algebra | One By One |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) — better | 4.8 (77 ratings) |
| Positive reviews | 100.0% of reviews — better | 90.9% of reviews |
| Number of ratings | 6 | 77 — better |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 280 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Intergalactic Education LLC | Brice Brown |
Customer experience
Intergalactic Algebra
One By One
In-app purchases
Intergalactic Algebra
- Factoring Rocket Report$2.99
- Functions Rocket Report$2.99
- Addition Subtraction Report$2.99
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- Multiples of Ten Report$2.99
- Num Of Solutions Report$2.99
- Quadratics Rocket Report$2.99
- Rates of Change Report$2.99
- Word Problems Rocket Report$2.99
- Rocket Trivia Rocket Report$2.99
- Progressions Report$2.99
One By One
- Monthly Support$1.991 Month
- Yearly Support$12.991 Year
- Lifetime Supporter pass$19.99
Questions
Is Intergalactic Algebra free?
Is One By One free?
Which has better reviews, Intergalactic Algebra or One By One?
Do Intergalactic Algebra or One By One have ads?
Which is updated more often, Intergalactic Algebra or One By One?
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