Comparison

Calculus Gacha! vs ベクトル

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

Head to head
About

Calculus Gacha!

Features
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● Fun, Gacha-Style Learning Tackle randomly selected questions and instantly check explanations and formulas as you go. ●AI Tutor Stuck on a problem? Ask the built-in AI tutor for a hint, a solving strategy, just the first step, or an explanation using a simpler similar problem — all tailored to the question you're working on. ● Learn by Topic Integration, limits, factorization, indeterminate equations, recurrence relations, differential equations, and more. Each topic is organized into categories so you can focus on exactly what you want to study. ● Helpful Support Features Hints, scratch paper, a timer, and other tools make learning smoother and more efficient. ● Automatic Study Tracking All solved questions are saved on your device, allowing you to review your progress and understanding anytime. ● Smart Question Selection Based on your learning history, the app prioritizes topics you struggle with, helping you learn more efficiently. --------------------------- Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.notion.so/calculus-gacha-joy-math-27ae4f0afd3b80cb9754ce138cbc80ca?source=copy_link

About

ベクトル

Features
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ベクトルアプリは,iOSアプリを媒体とした次世代の問題集を目指して開発されたアプリです.一般の紙媒体の問題集に対するアンチテーゼとして生まれましたが,従来の一般的な問題集の教材としてのメリットも活かしつつ,熱意を注いで開発しています.当アプリには以下の特徴があります. ・1ページに例題と練習問題が1問ずつ厳選採用(演習効果の高いオリジナル問題と入試問題をバランスよく収録) ・マーク機能(正解,不正解の問題にチェックができ,自動でiCloud共有されます) ・復習ガチャ機能(赤いマークをつけた問題からランダムで1問選んで排出します) ・ライティング機能(iPadならApple Pencil等のペンシルで問題下部の書き込みスペースに書き込むことができ,描画はアプリをシャットダウンしても保持されます.紙のノートが不要です) ・完全ダークモード対応 ・オフライン対応(通信環境下でなくてもほぼすべての機能が利用できます) ・広告無し 当アプリは,数学Cのベクトルに特化した単元別問題集です.1度高校等でベクトルを既習済みの方が,難関大学受験へ備えるための演習として,おいしい数学がこだわりを持って編集した問題集アプリです. 1度の購入でiPhone,iPad両方でダウンロードして使えるユニバーサルアプリです. おいしい数学X(Twitter)アカウント @oicmath にて,随時開発の情報発信や質問対応等行っております. ※最新のiOS,iPadOSにアップデートできない端末は動作保証できませんのでご注意ください. ※当ページ下部の,デベロッパWebサイトのリンクからもアプリの詳細が確認できます.

Screenshots

Calculus Gacha!4 screens
ベクトル4 screens

Verdict

The call

The clearest difference is price: Calculus Gacha! at Free against ベクトル's $2.99. Calculus Gacha! also leads on update cadence (every 3 days vs weekly) and iOS requirement (15.0 vs 18.0). ベクトル's advantage is in-app purchases (none vs 4). On ads 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

Calculus Gacha! is free to download; ベクトル costs $2.99 up front. Calculus Gacha! sells 4 one-off in-app purchases. ベクトル asks for nothing beyond the download.

UpkeepUpdate frequency

Calculus Gacha! ships an update every 3 days, ベクトル weekly. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 2 level
Calculus Gacha! versus ベクトル: the parameters behind the verdict, then further details
ParameterCalculus Gacha!ベクトル
PriceFree — better$2.99
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better18.0
Further details — not scored
Size83 MB36 MB
Age rating4+4+
DeveloperShunsuke NakamuraAkira Hiraoka

In-app purchases

4 purchases

Calculus Gacha!

One-time4
  • 不定方程式ガチャ利用オプション$0.99
  • AI Tutor Pass$2.99
  • AI Tutor Plus(500)$2.99
Show 1 more
  • 履歴管理機能オプション$2.99
None

ベクトル

No in-app purchases

Questions

Is Calculus Gacha! free?
Calculus Gacha! is free to download, with in-app purchases available.
Is ベクトル free?
ベクトル costs $2.99, with no in-app purchases.
Do Calculus Gacha! or ベクトル have ads?
Neither Calculus Gacha! nor ベクトル shows ads.
Which is updated more often, Calculus Gacha! or ベクトル?
Calculus Gacha! ships an update every 3 days, and ベクトル weekly. Most recently, Calculus Gacha! was updated on October 30, 2026 and ベクトル on October 27, 2026.

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