# Big Math Flash Cards vs Math Subtraction Operator App

The clearest difference is in-app purchases: Math Subtraction Operator App at none against Big Math Flash Cards's 1. Math Subtraction Operator App also leads on iOS requirement (9.0 vs 15.6). Big Math Flash Cards's advantage is update cadence (every 2 months vs every 48 months). On price, ads and device support there is nothing between them.

Both are free to download. Big Math Flash Cards sells 1 one-off in-app purchase. Math Subtraction Operator App asks for nothing beyond the download.

Big Math Flash Cards ships an update every 2 months, Math Subtraction Operator App every 48 months. The most recent releases landed on November 9, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Big Math Flash Cards | Math Subtraction Operator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (41K ratings)](https://appshunter.io/ios/app/big-math-flash-cards/id929492658/reviews)** | — |
| Number of ratings | **41K** | — |
| Positive reviews | 77.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 48 months |
| Monetization | Free with in-app purchases | — |
| Size | 3 MB | 23 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Masato Takagi](https://appshunter.io/developer/541833596) | [Alakmalak](https://appshunter.io/developer/406782291) |

## 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


### Math Subtraction Operator App

[App page](https://appshunter.io/ios/app/math-subtraction-operator-app/id956487494)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Big Math Flash Cards free?

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

### Is Math Subtraction Operator App free?

Math Subtraction Operator App is free to download, with no in-app purchases.

### Do Big Math Flash Cards or Math Subtraction Operator App have ads?

Neither Big Math Flash Cards nor Math Subtraction Operator App shows ads.

### Which is updated more often, Big Math Flash Cards or Math Subtraction Operator App?

Big Math Flash Cards ships an update every 2 months, and Math Subtraction Operator App every 48 months. Most recently, Big Math Flash Cards was updated on November 9, 2026 and Math Subtraction Operator App on October 29, 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.*