Comparison

秒でできる英単語帳 vs KnowUp

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

Head to head
About

秒でできる英単語帳

Features
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秒で好きな英単語を追加できる、あなただけの英単語帳 「英単語は覚えたいけど、なかなか続かない…」 そんなあなたにぴったりのアプリが「秒でできる英単語帳」です。 単語を追加すれば、意味や例文はAIが自動補完。さらに暗記時は暗記カード形式で直感的に覚えやすい。英検やTOEIC、日常英会話まで、あなたの英語学習を効率的に支えます。 ■ 特長と機能 ・自分だけの単語帳が作れる 気になった英単語をそのまま追加するだけ。AIが意味・例文・類義語を自動で表示するので、手軽に語彙を増やせます。 ・フリップ式カードで記憶に定着 まるで本物の単語カードのように、フリップして覚える学習スタイル。順番・ランダム、英語→日本語の切り替えも自由自在。 ・暗記の進捗をひと目で管理 「覚えた・未習得」の状態をワンタップで切り替え可能。覚えていない単語だけに絞って暗記もできるから、効率的に学べます。 ■ こんな人におすすめ ・英検・TOEIC対策をコツコツ進めたい ・オリジナルの単語帳を育てたい ・スキマ時間で少しずつ覚えたい ・書くより見る・めくる方が覚えやすい 単語帳はAIにまかせて、覚えることに集中しよう。 最短で覚える。効率よく続ける。 「秒でできる英単語帳」で、あなたの英語学習がもっとラクに、もっと楽しくなります。

About

KnowUp

Features
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Remember what you learn. KnowUp is an AI-powered flashcard app that helps you remember more with less effort. Using spaced repetition, it reminds you to review at the right time—before you're likely to forget. Whether you're learning vocabulary, preparing for exams, or studying for school, KnowUp helps you build knowledge that lasts. ■Review at the Right Time Forgetting is a natural part of learning. Research suggests that much of what we learn fades quickly without review. KnowUp uses the proven SM-2 spaced repetition algorithm to schedule reviews based on your learning performance. Reviewing at the right intervals helps strengthen long-term memory while reducing unnecessary repetition. ■Create Flashcards with AI Creating flashcards shouldn't take longer than studying. Simply take a photo of your textbook, class handout, or notes. AI automatically extracts questions and creates flashcards for you. Review the generated cards, make any edits you want, and start learning in minutes. ■ AI explains answers clearly Instead of just memorizing the answer, you can learn while understanding why it is correct. For example sentences and questions, AI provides easy-to-understand explanations of the content and expressions, helping you deepen understanding as you review. ■ Import Anki and Quizlet content in bulk You can continue using the flashcards and study content you already have. Import Anki and Quizlet content in bulk and use it directly for review in KnowUp. It reduces the need to recreate cards from scratch, so you can start studying right away. ■Stay Motivated Every Day Learning is easier when you can see your progress. • Earn XP every time you review • Level up as you continue learning • Build daily study streaks • Track your retention and study habits with detailed statistics ■Learn Together Studying with friends makes it easier to stay consistent. Invite a study buddy with a QR code or invitation code, share your learning progress, and encourage each other along the way. Perfect for: • Language learning • English vocabulary • School subjects • Certification exams • Memorization • Lifelong learning Study smarter. Remember longer. Download KnowUp and make every review count. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

秒でできる英単語帳4 screens
KnowUp4 screens

Verdict

The call

The clearest difference is in-app purchases: 秒でできる英単語帳 at none against KnowUp's 2. KnowUp's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence 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. KnowUp sells 2 in-app purchases, starting at $2.99 per month. 秒でできる英単語帳 asks for nothing beyond the download.

UpkeepUpdate frequency

秒でできる英単語帳 ships an update daily, KnowUp every 2 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 3 level
秒でできる英単語帳 versus KnowUp: the parameters behind the verdict, then further details
Parameter秒でできる英単語帳KnowUp
PriceFreeFree
Update frequencyDaily — betterEvery 2 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size12 MB89 MB
Age rating4+4+
DeveloperAppricot Co.,Ltd.Wenfeng Duan

In-app purchases

None

秒でできる英単語帳

No in-app purchases

2 purchases

KnowUp

Subscriptions2
  • knowup monthly14 Days trial$2.991 Month
  • knowup annual14 Days trial$24.991 Year

Questions

Is 秒でできる英単語帳 free?
秒でできる英単語帳 is free to download, with no in-app purchases.
Is KnowUp free?
KnowUp is free to download, with in-app purchases available.
Do 秒でできる英単語帳 or KnowUp have ads?
Neither 秒でできる英単語帳 nor KnowUp shows ads.
Which is updated more often, 秒でできる英単語帳 or KnowUp?
秒でできる英単語帳 ships an update daily, and KnowUp every 2 days. Most recently, 秒でできる英単語帳 was updated on November 7, 2026 and KnowUp on October 31, 2026.

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