Comparison

変数電卓+ vs CalcNotes

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

Head to head
About

変数電卓+

Features
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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)

About

CalcNotes

Features
Read full description

A powerful notepad that calculates each line and shows the results instantly. Quickly handle addition, subtraction, multiplication, division, and more in real time. Perfect for household budgets, balance tracking, revenue calculations, or splitting bills whenever you need to compute. ■ Calculation + Notepad Write an expression and it calculates automatically, displaying the result on the right. ■ No Equal Sign Needed You never need an '=' in your formulas. The app calculates automatically and shows the result in real time. ■ Tolerant of Extra Characters Expressions like "1,000 + 2,000" work perfectly even with commas or other characters. The app ignores what it doesn't need and still calculates correctly. ■ Copy Results Instantly Copy the calculation result with a single tap and paste it wherever you need it. ■ Unlimited Tab Management Create unlimited tabs for each category. ■ Flexible Tab Reordering Reorder tabs freely with intuitive drag-and-drop. ■ Notifications Schedule reminders with any message at the time you choose. ■ Automatic Backup & Restore Automatic backups keep your important data fully protected, even when switching devices. ■ Rich Theme Options Customize the app with a wide variety of color themes. ■ Biometric Authentication Boost app security with biometric authentication. ■ Full Offline Support Use the app anytime without an internet connection. ■ Full Dark Mode Support Switch freely between system-linked, light, and dark modes. ■ No Login Required Start using the app immediately without any login. ■ Robust Security We never send your data outside the device. All data stays securely stored on your device. No password input or storage is required. ■ Fast Support We respond quickly to your inquiries. Feel free to contact us at info@naokiotsu.com ■ Privacy Policy https://naokiotsu.com/privacy-policy ■ Terms of service https://naokiotsu.com/term-of-use

Screenshots

変数電卓+4 screens
CalcNotes4 screens

Verdict

The call

The clearest difference is in-app purchases: 変数電卓+ at none against CalcNotes's 2. 変数電卓+ also leads on update cadence (daily vs weekly) and iOS requirement (12.0 vs 15.1). On price, 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

Both are free to download. CalcNotes sells 2 in-app purchases, starting at $1.99 per month. 変数電卓+ asks for nothing beyond the download.

UpkeepUpdate frequency

変数電卓+ ships an update daily, CalcNotes weekly. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard3 real differences · 3 level
変数電卓+ versus CalcNotes: the parameters behind the verdict, then further details
Parameter変数電卓+CalcNotes
PriceFreeFree
Update frequencyDaily — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size27 MB52 MB
Age rating4+4+
DeveloperTakuya Nemotonaoki otsu

In-app purchases

None

変数電卓+

No in-app purchases

2 purchases

CalcNotes

Subscriptions1
  • Premium$1.991 Month
One-time1
  • Premium (Pay Once)$4.99

Questions

Is 変数電卓+ free?
変数電卓+ is free to download, with no in-app purchases.
Is CalcNotes free?
CalcNotes is free to download, with in-app purchases available.
Do 変数電卓+ or CalcNotes have ads?
Neither 変数電卓+ nor CalcNotes shows ads.
Which is updated more often, 変数電卓+ or CalcNotes?
変数電卓+ ships an update daily, and CalcNotes weekly. Most recently, 変数電卓+ was updated on November 8, 2026 and CalcNotes on November 7, 2026.

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