Comparison

ChallengeAddition&Subtraction vs Easy Number Practice

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

Head to head
About

ChallengeAddition&Subtraction

Read full description

This app is an educational app that allows you to practice addition and subtraction. A wide range of problems from easy to difficult are available, so you can learn at your own level. There are also features for accuracy rate, time, and score, where the score is calculated based on the time and the number of correct answers. By displaying a rank (from G to S) based on the score, it can increase your motivation to learn. If you want to improve your calculation skills, please try this app! In order to support localization, if the OS language of the device is not Japanese, it will be displayed in English. このアプリは、足し算と引き算の練習をすることができる教育アプリです。簡単な問題から難しい問題まで、幅広いレベルの問題が用意されており自分のレベルに合わせて学習することができます。また、正解率やタイム、スコアの機能があり、問題を解くのにかかった時間や正解数に基づいて、スコアが計算されます。スコアに基づいたランク(GからS)が表示されことで学習意欲を高めることができます。計算力を伸ばしたい方、是非このアプリをお試し下さい! ローカライズ対応として端末のOS言語が日本語以外の場合は英語で表示されます。

About

Easy Number Practice

Features
Read full description

Easy Number Practice is a calm and approachable arithmetic app for everyday practice. Large text and clear buttons make it easy to work through addition, simple calculations, multiplication tables from 2 to 5, and missing-number questions. There is no time pressure. Focus on one question at a time, review mistakes, and practice at your own pace. Key features • Easy addition and arithmetic practice • Multiplication tables from 2 to 5 • Missing-number questions • Mixed free practice • Mistake tracking and review • Large text and clear buttons • No timers or time pressure • Background themes and music settings • Practice progress overview

Screenshots

ChallengeAddition&Subtraction4 screens
Easy Number Practice4 screens

Verdict

The call

The clearest difference is update cadence: Easy Number Practice at every 5 days against ChallengeAddition&Subtraction's fortnightly. ChallengeAddition&Subtraction's advantage is iOS requirement (11.0 vs 16.0). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ChallengeAddition&Subtraction ships an update fortnightly, Easy Number Practice every 5 days. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
ChallengeAddition&Subtraction versus Easy Number Practice: the parameters behind the verdict, then further details
ParameterChallengeAddition&SubtractionEasy Number Practice
PriceFreeFree
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size58 MB10 MB
Age rating4+4+
Developerkoichi kodamajinyeoung kang

In-app purchases

None

ChallengeAddition&Subtraction

No in-app purchases

None

Easy Number Practice

No in-app purchases

Questions

Is ChallengeAddition&Subtraction free?
ChallengeAddition&Subtraction is free to download, with no in-app purchases.
Is Easy Number Practice free?
Easy Number Practice is free to download, with no in-app purchases.
Do ChallengeAddition&Subtraction or Easy Number Practice have ads?
Neither ChallengeAddition&Subtraction nor Easy Number Practice shows ads.
Which is updated more often, ChallengeAddition&Subtraction or Easy Number Practice?
ChallengeAddition&Subtraction ships an update fortnightly, and Easy Number Practice every 5 days. Most recently, ChallengeAddition&Subtraction was updated on November 7, 2026 and Easy Number Practice on November 6, 2026.

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