# One By One vs Loop Hero

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.

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.

## The numbers

| Metric | One By One | Loop Hero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (77 ratings)](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023/reviews) | **[4.9 (3.9K ratings)](https://appshunter.io/ios/app/loop-hero/id6464048549/reviews)** |
| Number of ratings | 77 | **3.9K** |
| Positive reviews | **90.9% of reviews** | 74.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 64 MB | 213 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Brice Brown](https://appshunter.io/developer/1555846025) | [Playdigious](https://appshunter.io/developer/1041387229) |

## What reviewers say

### One By One

[App page](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Support | $1.99 | per month |
| Yearly Support | $12.99 | per year |
| Lifetime Supporter pass | $19.99 | one-time |


### Loop Hero

[App page](https://appshunter.io/ios/app/loop-hero/id6464048549)

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.

**Highlights:** 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

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Game | $6.99 | one-time |

**What reviewers like**

- 👍 Excellent mechanics
- 👍 Great replayability
- 👍 Charming graphics
- 👍 Unique and enjoyable experience
- 👍 Smooth gameplay

**What reviewers complain about**

- 🐛 Sound doesn't work
- 🐛 Crashes and freezes
- 🐛 Unresponsive after certain actions
- 🐛 Difficulty reading small text
- 🐛 Accidental card placement

**Reported bugs**

- Game crashes after defeating first boss
- Unplayable after initial progress
- Inability to progress past trial version

**Requested features**

- Portrait mode
- More classes/build diversity
- Improved UI/overlay customization
- Chinese language support


## Frequently asked questions

### Is One By One free?

One By One is free to download, with in-app purchases available.

### Is Loop Hero free?

Loop Hero is free to download, with in-app purchases available.

### Which has better reviews, One By One or Loop Hero?

Loop Hero is rated higher. One By One averages 4.8 out of 5 from 77 ratings, while Loop Hero averages 4.9 from 3.9K ratings.

### Do One By One or Loop Hero have ads?

One By One shows ads; Loop Hero does not.

### Which is updated more often, One By One or Loop Hero?

One By One ships an update every 2 weeks, and Loop Hero every 10 days. Most recently, One By One was updated on October 13, 2026 and Loop Hero on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*