# Math Answers Pro Study Drills vs One By One

The clearest difference is rating: One By One at 4.8 against Math Answers Pro Study Drills's 1.0. One By One also leads on update cadence (every 2 weeks vs every 47 months) and ratings volume (77 vs 1). Math Answers Pro Study Drills's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. Math Answers Pro Study Drills asks for nothing beyond the download.

One By One holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: One By One has 77 ratings behind it against 1, so its average is the more settled of the two.

Math Answers Pro Study Drills ships an update every 47 months, One By One every 2 weeks. The most recent releases landed on November 11, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Math Answers Pro Study Drills | One By One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/math-answers-pro-study-drills/id1108237815/reviews) | **[4.8 (77 ratings)](https://appshunter.io/ios/app/one-by-one-mental-math/id1555846023/reviews)** |
| Number of ratings | 1 | **77** |
| Positive reviews | — | 90.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 47 months | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 77 MB | 64 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Andre Tobisch](https://appshunter.io/developer/841681922) | [Brice Brown](https://appshunter.io/developer/1555846025) |

## What reviewers say

### Math Answers Pro Study Drills

[App page](https://appshunter.io/ios/app/math-answers-pro-study-drills/id1108237815)

Engage in an addictive math puzzle game that tests your speed and accuracy with basic arithmetic operations. Challenge yourself to become an algebra master with timed quizzes and fun chalk themes.

**Highlights:** Timed math challenges, Addition, subtraction, multiplication, division, Tap to select answers, Brain workout, Fun chalk themes, Improves reaction time

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Math Answers Pro Study Drills free?

Math Answers Pro Study Drills is free to download, with no in-app purchases.

### Is One By One free?

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

### Which has better reviews, Math Answers Pro Study Drills or One By One?

One By One is rated higher. Math Answers Pro Study Drills averages 1.0 out of 5 from 1 ratings, while One By One averages 4.8 from 77 ratings.

### Do Math Answers Pro Study Drills or One By One have ads?

One By One shows ads; Math Answers Pro Study Drills does not.

### Which is updated more often, Math Answers Pro Study Drills or One By One?

Math Answers Pro Study Drills ships an update every 47 months, and One By One every 2 weeks. Most recently, Math Answers Pro Study Drills was updated on November 11, 2026 and One By One on November 3, 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.*