Comparison

変数電卓+ vs Noteleaf

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
Read full description

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

Noteleaf

Features
Read full description

Noteleaf is a handwriting notebook that feels like real looseleaf paper. Write freely with Apple Pencil, rearrange pages, choose from templates, and make it your own. ■ Key Features Looseleaf Feel Pages can be reordered freely, just like real looseleaf paper. Move, insert, or remove pages to organize your notes the way you want. Handwriting with Apple Pencil Write naturally with Apple Pencil. Supports Scribble. Turn on Apple Pencil-Only Mode in Settings to prevent accidental palm touches. Ruler Tool Draw perfectly straight lines at any angle using the on-screen ruler — no physical ruler needed. 10 Page Templates Choose from blank, lined, wide-ruled, grid, dot grid, Cornell, and more. Mix templates freely within a single notebook. 16 Leather Cover Colors Personalize each notebook with a color that suits you — 16 rich leather-style covers to choose from. PDF Export Export any notebook as a PDF to share or archive your notes. Notebook Sharing Share notebooks with others in the app's native format. Device Sharing and notebook sharing work when either device has Premium — the other device doesn't need to purchase. ■ One-Time Purchase Noteleaf is free to download. One in-app purchase unlocks: ・ Unlimited notebooks (free tier: 1 notebook) ・ PDF export ・ Notebook sharing All handwriting features are available for free. No subscription. No account required.

Screenshots

変数電卓+4 screens
Noteleaf4 screens

Verdict

The call

The clearest difference is in-app purchases: 変数電卓+ at none against Noteleaf's 1. 変数電卓+ also leads on update cadence (daily vs weekly) and iOS requirement (12.0 vs 17.0). 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. Noteleaf sells 1 one-off in-app purchase. 変数電卓+ asks for nothing beyond the download.

UpkeepUpdate frequency

変数電卓+ ships an update daily, Noteleaf weekly. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

Scorecard3 real differences · 3 level
変数電卓+ versus Noteleaf: the parameters behind the verdict, then further details
Parameter変数電卓+Noteleaf
PriceFreeFree
Update frequencyDaily — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size27 MB16 MB
Age rating4+4+
DeveloperTakuya Nemotomasafumi matsumoto

In-app purchases

None

変数電卓+

No in-app purchases

1 purchases

Noteleaf

One-time1
  • Premium Unlock$9.99

Questions

Is 変数電卓+ free?
変数電卓+ is free to download, with no in-app purchases.
Is Noteleaf free?
Noteleaf is free to download, with in-app purchases available.
Do 変数電卓+ or Noteleaf have ads?
Neither 変数電卓+ nor Noteleaf shows ads.
Which is updated more often, 変数電卓+ or Noteleaf?
変数電卓+ ships an update daily, and Noteleaf weekly. Most recently, 変数電卓+ was updated on October 25, 2026 and Noteleaf on October 22, 2026.

Other comparisons