変数電卓+ vs CC31
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
変数電卓+
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変数電卓+は、従来の電卓機能に加え、変数機能を持つ計算機アプリです。 【最大の特徴:変数機能】 計算結果を変数として保存し、後の計算で自由に呼び出せる画期的な機能を搭載。 例えば、消費税率を「tax」として保存すれば、いつでも「1000 × tax」のように使えます。 変数には分かりやすいラベルも付けられるので、「月収」「家賃」「光熱費」など、用途に応じた管理が可能です。 【プロフェッショナル仕様の計算機能】 ◆ 基本計算 • 四則演算、パーセント計算、括弧を使った複雑な式 • リアルタイムで計算結果を表示 • 15桁の高精度計算 ◆ 科学計算(関数モード) • 三角関数:sin, cos, tan とその逆関数 • 対数・指数:log, ln, e^x • その他:平方根、べき乗、階乗 • 数学定数:π(円周率)、e(自然対数の底) • メモリ機能:M+, M-, MR, MC 【充実の補助機能】 ◆ 計算履歴(最大100件) • すべての計算を自動記録 • タップで式を再利用 • 日時表示で管理しやすい ◆ お気に入り • よく使う計算式を保存 • ワンタップで呼び出し • カスタム名で整理 ◆ 単位変換(7カテゴリー) • 長さ:メートル、キロメートル、インチ、フィートなど • 重さ:グラム、キログラム、ポンド、オンスなど • 温度:摂氏、華氏、ケルビン • 面積:平方メートル、ヘクタール、エーカーなど • 体積:リットル、ガロン、カップなど • 時間:秒、分、時間、日、週、月、年 • 速度:m/s、km/h、mph ◆ 編集機能 • 計算式を直接編集可能 • カーソル移動で任意の位置を修正 • 計算後も式に戻って編集できる ◆ カスタマイズ • ライト/ダークテーマ • 触覚フィードバック • 多言語対応(日本語・英語)
CC31
Enhance your existing iPhone calendar with a bold, dark interface and neon accents. View and edit your schedule, add notes, and check upcoming events with customizable Home Screen widgets.
- Neon-themed calendar interface
- View and edit existing iPhone calendar events
- Home Screen widgets for upcoming events
- Timeline and agenda views
- Integrated notes for tasks and ideas
- Cyberpunk-inspired design
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Give your existing calendar a neon makeover. See your month, edit events, and check what's next from your Home Screen. Keep the events already in your iPhone calendar—no need to enter them again. CC31 brings your schedule and notes together in a bold, dark interface. YOUR MONTH AT A GLANCE See your plans in a monthly calendar. Expand the month view for a larger look, then select a date to check its events. KEEP YOUR EXISTING EVENTS View and edit events from your iPhone's Calendar. Use the schedule you already have without moving or re-entering your events. HOME SCREEN WIDGETS Check upcoming events without opening the app. Keep your next plans in view with dark widgets on your Home Screen. TIMELINE AND AGENDA Follow your day in a timeline or switch to an agenda for a clear list of upcoming events. NOTES WITHIN REACH Keep ideas and small tasks alongside your schedule. Open notes from the menu, and copy or share them when you need to. A CALENDAR WITH CHARACTER Make everyday planning feel more personal with deep blacks, vivid neon, and a cyberpunk-inspired design. --- Calendar access is used to display and edit your schedule. Event data is handled on your device and iCloud. Identifiers, usage, or diagnostics may be processed via third-party services for app improvement or ads. See the Privacy Policy for details. - Privacy Policy: https://page.isajiappdev.workers.dev/en/privacy?app_id=80c97385 - Terms of Service: https://page.isajiappdev.workers.dev/en/terms?app_id=80c97385
Screenshots
Verdict
The clearest difference is in-app purchases: 変数電卓+ at none against CC31's 3. 変数電卓+ also leads on ads (none vs shown) and update cadence (daily vs every 9 days). On price 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
Both are free to download. CC31 sells 3 one-off in-app purchases. 変数電卓+ asks for nothing beyond the download.
変数電卓+ ships an update daily, CC31 every 9 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.
| Parameter | 変数電卓+ | CC31 |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Daily — better | Every 9 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 27 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuya Nemoto | shogo isaji |
In-app purchases
変数電卓+
No in-app purchases
CC31
- Style Pack$2.99
- Theme Pack$2.99
- Remove ads$2.99









