# Card Battle Math vs ChromaKeys

The clearest difference is rating: ChromaKeys at 5.0 against Card Battle Math's 3.0. ChromaKeys also leads on update cadence (monthly vs every 9 months) and device support (3 vs 1). Card Battle Math's advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 13.0). On price and ads there is nothing between them.

Both are free to download. ChromaKeys sells 2 in-app purchases, starting at $4.99 per month. Card Battle Math asks for nothing beyond the download.

ChromaKeys holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Card Battle Math ships an update every 9 months, ChromaKeys monthly. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Card Battle Math | ChromaKeys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/card-battle-math/id429579771/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chromakeys/id6670215800/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | **Free** | Subscription |
| Size | 41 MB | 54 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Classroom Focused Software](https://appshunter.io/developer/406741679) | [Deliver Software, LLC](https://appshunter.io/developer/1765347444) |

## What reviewers say

### Card Battle Math

[App page](https://appshunter.io/ios/app/card-battle-math/id429579771)

Engage in a math card game to practice addition and multiplication facts. Players solve problems based on card values, with a timer for added challenge. The running total increases only when both problems are answered correctly.

**Highlights:** Addition and multiplication fact practice, 2 and 3-digit addition, Card 'war' game mechanics, Timer for timed challenges, Running total calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### ChromaKeys

[App page](https://appshunter.io/ios/app/chromakeys/id6670215800)

This app uses a Japanese-inspired method to teach children musical pitch through interactive lessons and games. It aims to help kids develop perfect pitch, enhancing their ability to understand music as a language. Features include personalized plans, progress tracking, and engaging challenges.

**Highlights:** Interactive music pitch lessons, Japanese ear training approach, Develops perfect pitch, Personalized lesson plans, Progress tracking, Engaging challenges

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChromaKeys Monthly | $4.99 | per month |
| ChromaKeys Annual Subscription | $49.99 | per year |


## Frequently asked questions

### Is Card Battle Math free?

Card Battle Math is free to download, with no in-app purchases.

### Is ChromaKeys free?

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

### Which has better reviews, Card Battle Math or ChromaKeys?

ChromaKeys is rated higher. Card Battle Math averages 3.0 out of 5 from 1 ratings, while ChromaKeys averages 5.0 from 3 ratings.

### Do Card Battle Math or ChromaKeys have ads?

Neither Card Battle Math nor ChromaKeys shows ads.

### Which is updated more often, Card Battle Math or ChromaKeys?

Card Battle Math ships an update every 9 months, and ChromaKeys monthly. Most recently, Card Battle Math was updated on October 20, 2026 and ChromaKeys on October 2, 2026.

---

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