# Big Math Flash Cards vs 9x9 Cards

The clearest difference is review sentiment: Big Math Flash Cards at 77% against 9x9 Cards's 0%. Big Math Flash Cards also leads on ratings volume (41K vs 1). 9x9 Cards's advantage is rating (5.0 vs 4.2) and monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Big Math Flash Cards sells 1 one-off in-app purchase and 9x9 Cards sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

9x9 Cards holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Big Math Flash Cards has 41K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 77% of Big Math Flash Cards's written reviews are positive against 0% of 9x9 Cards's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | Big Math Flash Cards | 9x9 Cards |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (41K ratings)](https://appshunter.io/ios/app/big-math-flash-cards/id929492658/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/9x9-cards/id1254925679/reviews)** |
| Number of ratings | **41K** | 1 |
| Positive reviews | **76.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 22 MB |
| Requires iOS | 15.6 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masato Takagi](https://appshunter.io/developer/541833596) | [Koji Iida](https://appshunter.io/developer/955305523) |

## What reviewers say

### Big Math Flash Cards

[App page](https://appshunter.io/ios/app/big-math-flash-cards/id929492658)

This app provides a digital flash card experience for practicing basic arithmetic operations. Users can flip cards, select answers, and track their progress with score percentages and elapsed time. Additional features for reviewing mistakes, custom sets, and different input modes are available through in-app purchases.

**Highlights:** Addition, Subtraction, Multiplication, Division, Configurable number of questions and answers, Score percentage and elapsed time tracking, Selectable color themes and sound options, Review incorrect answers (in-app purchase), Custom card sets (in-app purchase)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Bundle | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Helps with math practice
- 🤩 Fun and engaging for kids
- 📚 Useful for learning math facts
- 🧠 Improves math skills

**What reviewers complain about**

- 💰 Some features require payment
- 🤔 Lack of customization options
- 🤖 Repetitive gameplay
- 🙄 Boring for older students

**Reported bugs**

- Incorrect answers marked as wrong
- Glitches when swiping answers

**Requested features**

- More difficulty levels
- Ability to choose specific math operations
- Addition of word problems
- Inclusion of fractions and exponents
- Gamification and rewards system


### 9x9 Cards

[App page](https://appshunter.io/ios/app/9x9-cards/id1254925679)

This app helps children learn multiplication tables through focused study. Developed by a parent for their child, it offers a straightforward approach to mastering math facts.

**Highlights:** Multiplication table study, Designed for children, Simple learning approach, Focus on math facts

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is Big Math Flash Cards free?

Big Math Flash Cards is free to download, with in-app purchases available.

### Is 9x9 Cards free?

9x9 Cards is free to download, with in-app purchases available.

### Which has better reviews, Big Math Flash Cards or 9x9 Cards?

9x9 Cards is rated higher. Big Math Flash Cards averages 4.2 out of 5 from 41K ratings, while 9x9 Cards averages 5.0 from 1 ratings.

### Do Big Math Flash Cards or 9x9 Cards have ads?

Neither Big Math Flash Cards nor 9x9 Cards shows ads.

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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.*