Comparison

正規表現(Regular Expression) vs React Quiz

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

Head to head
About

正規表現(Regular Expression)

Features
Read full description

正規表現とは、『メタ文字(文字の情報、つまり"0"なら数字、"a"なら半角英字など)を利用して、文字列を表現すること』です。 1つメタ文字を紹介すると、"."(ドット)は『なんでも良い1文字』です。 例えば、正規表現『あ.す』に一致する文字は 『あいす』、『あきす』や『あーす』などなど...。 メタ文字を複数組み合わせることで膨大な文章の中から、電話番号のみなどの、特定の文字列だけ検索することが容易になります。 正規表現を覚えるために3つの機能を用意しています。 ①基本的な正規表現の一覧機能 →メタ文字の使い方や、正規表現(メタ文字の組み合わせ)の一覧が閲覧可能です。 ②正規表現を学ぶための機能 →難易度別に問題を用意しました。4択形式です。 全部回答すると、選択肢ごとに振り返りもできるようにしています。 合計で80問程度作りましたが、今後増やしていこうと思っています。(ネタを提供していただけると幸いです。) ③自由に正規表現を確認する機能 →自由に正規表現を確認できる画面を用意しています。 正規表現の入力補助機能や、フラグによる正規表現もあります。 ※『おいおい、正規表現の使い方間違っているぞ!!』、『この正規表現しってると便利だぞ!!』などありましたら、お手数ですがご連絡いただけると幸いですm(_ _)m※

About

React Quiz

Features
Read full description

■ Learn React in just 5 minutes a day - like playing a game! ■ AI suggests optimal questions based on your learning progress! ■ Ask the AI Teacher when you don't understand something! React Quiz is an app that lets you learn React quickly on your smartphone. Even during short breaks or commuting, you can solve a few questions in just 5 minutes and gain programming knowledge. The AI suggests questions for you, so you can start learning immediately when you open the app. We offer questions for all levels, from beginners to advanced users. From basic knowledge questions to tricky ones that will make you think - challenge yourself with various questions! If there's something you don't understand, ask the AI Teacher! With React Quiz, you can chat with the AI Teacher completely free. By asking questions, you'll deepen your learning and master React. Start with just 5 minutes a day and gradually build your programming skills! You'll definitely discover knowledge you never knew before!

Screenshots

正規表現(Regular Expression)4 screens
React Quiz4 screens

Verdict

The call

The clearest difference is in-app purchases: 正規表現(Regular Expression) at none against React Quiz's 3. React Quiz's advantage is update cadence (monthly vs every 8 months). On price, ads, device support and iOS requirement 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. React Quiz sells 3 in-app purchases, starting at $0.99 per 7 days. 正規表現(Regular Expression) asks for nothing beyond the download.

UpkeepUpdate frequency

正規表現(Regular Expression) ships an update every 8 months, React Quiz monthly. The most recent releases landed on September 26, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 4 level
正規表現(Regular Expression) versus React Quiz: the parameters behind the verdict, then further details
Parameter正規表現(Regular Expression)React Quiz
PriceFreeFree
Update frequencyEvery 8 monthsMonthly — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.1
Further details — not scored
Size14 MB83 MB
Age rating4+4+
DeveloperHiroki SatoCreatopia Inc.

In-app purchases

None

正規表現(Regular Expression)

No in-app purchases

3 purchases

React Quiz

Subscriptions3
  • Premium Weekly3 Days trial$0.997 Days
  • Monthly Premium3 Days trial$2.991 Month
  • Yearly Premium3 Days trial$24.991 Year

Questions

Is 正規表現(Regular Expression) free?
正規表現(Regular Expression) is free to download, with no in-app purchases.
Is React Quiz free?
React Quiz is free to download, with in-app purchases available.
Do 正規表現(Regular Expression) or React Quiz have ads?
Both 正規表現(Regular Expression) and React Quiz show ads.
Which is updated more often, 正規表現(Regular Expression) or React Quiz?
正規表現(Regular Expression) ships an update every 8 months, and React Quiz monthly. Most recently, 正規表現(Regular Expression) was updated on September 26, 2026 and React Quiz on September 22, 2026.

Other comparisons