# One By One vs Roll

The clearest difference is ads: Roll at none against One By One's shown. Roll also leads on update cadence (weekly vs every 2 weeks) and ratings volume (439 vs 77). One By One's advantage is rating (4.8 vs 4.6) and review sentiment (91% vs 78%). On price, in-app purchases, monetization model and device support 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 Roll sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

One By One holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Roll has 439 ratings behind it against 77, so its average is the more settled of the two. Written reviews point the same way: 91% of One By One's written reviews are positive against 78% of Roll's.

One By One ships an update every 2 weeks, Roll weekly. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | One By One | Roll |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (77 ratings)](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023/reviews)** | [4.6 (439 ratings)](https://appshunter.io/ios/app/roll/id6452083813/reviews) |
| Number of ratings | 77 | **439** |
| Positive reviews | **90.9% of reviews** | 78.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 64 MB | 370 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Brice Brown](https://appshunter.io/developer/1555846025) | [Joseph Anthony Distler](https://appshunter.io/developer/1698740947) |

## 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 |


### Roll

[App page](https://appshunter.io/ios/app/roll/id6452083813)

Engage in a relaxing dice-rolling experience where you aim to collect points by rolling dice and strategically upgrading them. This game blends elements of strategy, clicker, and roguelike deckbuilders for a unique dice-building system with deep strategic choices. Enjoy a meditative escape with its minimalistic design and peaceful atmosphere.

**Highlights:** Dice rolling for points, Dice upgrading system, Strategy and critical thinking, Relaxing and meditative experience, Unique dicebuilding synergies, Highscore chasing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Roll Premium | $3.99 | one-time |

**What reviewers like**

- 🚀 Easy to play
- 👍 Addictive gameplay
- 🔒 No ads or microtransactions
- 🚀 Smooth performance
- 👍 Unique and innovative

**What reviewers complain about**

- 🐛 Bugs and glitches
- 👎 Limited free content
- 👎 Confusing or overwhelming UI
- 👎 Lack of customization options
- 👎 Repetitive gameplay

**Reported bugs**

- Upgrade shop issues
- Crashes and freezes
- Swiping/tapping issues
- Incompatibility with older devices

**Requested features**

- Offline mode
- More dice skins and customization
- Sandbox mode with unlimited rolls
- Improved dice management UI
- More detailed stats and analytics


## Frequently asked questions

### Is One By One free?

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

### Is Roll free?

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

### Which has better reviews, One By One or Roll?

One By One is rated higher. One By One averages 4.8 out of 5 from 77 ratings, while Roll averages 4.6 from 439 ratings.

### Do One By One or Roll have ads?

One By One shows ads; Roll does not.

### Which is updated more often, One By One or Roll?

One By One ships an update every 2 weeks, and Roll weekly. Most recently, One By One was updated on October 13, 2026 and Roll on October 14, 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.*