One By One vs MathArena
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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/
MathArena
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MathArena is a fast-paced math game where you race against the clock to solve equations of increasing difficulty. From simple addition to complex multi-step operations with powers and square roots — how far can you go in 60 seconds? Compete globally, climb the leaderboard, and help your country rise in the rankings. Every correct answer counts. Features: - Progressive difficulty across 7+ levels - Global and country leaderboards - Combo system for bonus points - Tournaments (Premium) - No ads for Premium users Terms of Use: https://www.privacypolicies.com/live/cd090a81-b648-4741-86da-6d4d34ede73b
Screenshots
Verdict
The clearest difference is in-app purchases: MathArena at none against One By One's 3. MathArena also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). One By One's advantage is update cadence (every 2 weeks vs every 6 weeks). On price and device support 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. One By One sells 3 in-app purchases, starting at $1.99 per month. MathArena asks for nothing beyond the download.
One By One ships an update every 2 weeks, MathArena every 6 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.
| Parameter | One By One | MathArena |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (77 ratings) — better | — |
| Positive reviews | 90.9% of reviews | — |
| Number of ratings | 77 — better | — |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Brice Brown | Daniel Castro |
In-app purchases
One By One
- Monthly Support$1.991 Month
- Yearly Support$12.991 Year
- Lifetime Supporter pass$19.99
MathArena
No in-app purchases
Questions
Is One By One free?
Is MathArena free?
Do One By One or MathArena have ads?
Which is updated more often, One By One or MathArena?
Other comparisons
