Comparison

Card Battle Math vs ChromaKeys

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Card Battle Math

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
Read full description

Part of the Indoor Recess Games CFS Bundle Practice basic addition and multiplication facts 1-10 and 2 and 3-digit addition. Based on the card "war" game where the high card wins the hand. In this game the high card gets to solve problems! Set a timer to really heat things up! Each turn has two problems to solve. The first problem is a "basic" addition or multiplication fact problem that is represented by the cards that the players turn over. The second problem is the addition of the running total and the answer to the fact problem. The running total only increases if both problems are answered correctly.

About

ChromaKeys

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
Read full description

Give kids the gift of musical pitch through daily training in a fun and engaging learning app! ChromaKeys offers a range of interactive lessons that make learning musical pitch enjoyable for kids. The app is based on a Japanese approach that teaches kids music as a language. According to research, younger kids can still gain a skill called "perfect pitch" which allows them to hear music in a unique way. Unlock the potential of your child's musical abilities with personalized lesson plans, progress tracking, interactive challenges, and more. If you experience any issues, email support@chromakeys.com ChromaKeys is a subscription service that gives complete access to the ear training music education content. -Subscriptions are billed monthly or annually at the rate selected depending on subscription plan. - Change your mind at any point. Canceling can be done through your app store subscriptions page. - Subscriptions auto-renew at the cost of the chosen package, unless cancelled 24 hours in advance of the end of the current period. The subscription fee is charged to your Apple account. - Use your subscription on any device registered with the same Apple ID you subscribe from.

Screenshots

ChromaKeys4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard7 real differences · 3 level
Card Battle Math versus ChromaKeys: the parameters behind the verdict, then further details
ParameterCard Battle MathChromaKeys
PriceFreeFree
Rating3.0 (1 ratings)5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 9 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPadiPhone, iPad, iPod — better
Requires iOS10.0 — better13.0
Further details — not scored
Size41 MB54 MB
Age rating4+4+
DeveloperClassroom Focused SoftwareDeliver Software, LLC

Customer experience

Card Battle Math

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%

ChromaKeys

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Card Battle Math

No in-app purchases

2 purchases

ChromaKeys

Subscriptions2
  • ChromaKeys Monthly7 Days trial$4.991 Month
  • ChromaKeys Annual Subscription1 Month trial$49.991 Year

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.

Other comparisons