One By One vs Loop Hero
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/
Loop Hero
Embark on a roguelike RPG adventure where you strategically place cards to create enemy encounters, buildings, and terrain. Equip your hero with powerful loot, expand your camp, and unlock new classes and cards to break an endless cycle of despair and save a forgotten world.
- Randomly generated expedition loops
- Strategic card placement for trials
- Loot collection for hero progression
- Camp expansion and reconstruction
- Unlockable classes and cards
- Retro pixel art dark fantasy story
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*Try Loop Hero for free and unlock the full game for the whole adventure!* The Lich has thrown the world into a timeless loop and plunged its inhabitants into never ending chaos. In this roguelike RPG, wield an expanding deck of mystical cards to place enemies, buildings, and terrain along each unique expedition loop for the brave hero. Recover and equip powerful loot for each class of hero for their battles and expand the survivors' camp to reinforce each adventure through the loop. Unlock new classes, new cards, and devious guardians on your quest to shatter the endless cycle of despair. FEATURES - Explore an endless number of paths: bring your hero on randomly generated loops and never experience the same run twice. - Shape your expeditions into darkness: build your deck and place your cards to script your hero’s trials and tribulations. - Loot as you loop to rebuild the world: recover your memories as you collect equipment and resources to become stronger, reconstruct your camp and get your reality back. - Plunge into a gloomy universe: discover a melancholic dark fantasy story told through a retro pixel art direction and recollect the memories of this world. - Break the cycle: triumph over mighty bosses to free the world from the Lich’s neverending time loop. CAREFULLY REDESIGNED FOR MOBILE - Revamped interface – exclusive mobile UI with complete touch control - Game Center achievements - Cloud Save – Share your progress between iOS devices - Compatible with MFi controllers - iPhone 15 Optimization (including Pro Max)
Screenshots
Verdict
The clearest difference is ads: Loop Hero at none against One By One's shown. Loop Hero also leads on ratings volume (3.9K vs 77). One By One's advantage is review sentiment (91% vs 75%). 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. One By One sells 3 in-app purchases, starting at $1.99 per month and Loop Hero sells 1 one-off in-app purchase. 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 One By One against 4.9 for Loop Hero. That said, the two scores are not equally well evidenced: Loop Hero has 3.9K ratings behind it against 77, so its average is the more settled of the two. Written reviews are what separate them: 91% of One By One's written reviews are positive against 75% of Loop Hero's.
One By One ships an update every 2 weeks, Loop Hero every 10 days. The most recent releases landed on October 13, 2026 and October 19, 2026 respectively.
| Parameter | One By One | Loop Hero |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (77 ratings) | 4.9 (3.9K ratings) — better |
| Positive reviews | 90.9% of reviews — better | 74.9% of reviews |
| Number of ratings | 77 | 3.9K — better |
| Update frequency | Every 2 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| 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 | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 64 MB | 213 MB |
| Age rating | 4+ | 9+ |
| Developer | Brice Brown | Playdigious |
Customer experience
One By One
Loop Hero
Bugs and requests
One By One
Not enough reviews yet to summarise bugs or requests.
Loop Hero
Reported bugs
3 issues- Game crashes after defeating first boss
- Unplayable after initial progress
- Inability to progress past trial version
Requested features
4 requests- Portrait mode
- More classes/build diversity
- Improved UI/overlay customization
- Chinese language support
In-app purchases
One By One
- Monthly Support$1.991 Month
- Yearly Support$12.991 Year
- Lifetime Supporter pass$19.99
Loop Hero
- Unlock Full Game$6.99
