Comparison

変数電卓+ vs Furigana Notepad

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

Furigana Notepad

Features
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Furigana Notepad is a notepad that lets you give any word in your notes the reading (furigana / ruby text) you like, and keeps it. Creative readings such as 約束《ちかい》, or readings for kanji you cannot read yet: you decide. Built for novel and script drafts, dialogue readings, and Japanese study. Select text and add a reading. Register readings you use often in a dictionary, and they appear automatically from then on. Assign a dictionary per folder to switch readings by project or by textbook. ■ Manual ruby Select any range of text and give that one spot its own reading — useful when the same kanji is read differently depending on context, such as a character's line in a novel. You can register it to the dictionary from the same dialog. ■ Automatic furigana Register a word and its reading, and matching text in your notes gets ruby text automatically. Assign a dictionary per folder to keep multiple stories or study sets separate. Reorder a folder's dictionaries to set their priority; when the same word is in more than one, the reading from the higher one is used. Words in the Shared Dictionary apply to every memo regardless of folder settings. ■ Live ruby preview while editing Split the editor into two panes. The lower pane shows your text with ruby applied as you type, so you can check the result without switching to view mode. ■ Select and copy in view mode Select the body text and copy it as plain text. When you want ruby text included, use the novel-site notation export instead. ■ Novel-site ruby notation export Supports four formats: Narou-style (|kanji《ruby》), pixiv, Alphapolis, and HTML. Converts your text so it can be pasted straight into novel submission sites. ■ Import from novel-site notation Paste text written in Narou-style, pixiv, Alphapolis, or HTML ruby notation, and it becomes a note with ruby text applied. The format is detected automatically, and the readings it contains can be registered to a dictionary in one go. ■ PDF export with furigana Create a PDF with ruby text, choosing vertical or horizontal writing, paper size (A4 / B5), typeface (Mincho / Gothic), font size, characters per line, line spacing, and margins. Share, save, or print it (Premium feature). ■ Note management Full-text search, pinning, a trash (auto-deletes after 30 days, with undo), and autosave are all built in. Folders can be nested without limit, sorted by name or update time, and moved by dragging. ■ Your data and Premium No account required. Memos are stored on your device and never uploaded to our servers (OS backups follow your device settings). The free version shows ads. Watch a video for 24 hours ad-free, or buy Premium once for permanent ad-free use and PDF export. See the privacy policy for how ads and crash reporting handle data. Whether you're writing a novel or studying Japanese, the readings are yours to decide. Service names mentioned are trademarks of their respective owners.

Screenshots

変数電卓+4 screens
Furigana Notepad4 screens

Verdict

The call

The clearest difference is in-app purchases: 変数電卓+ at none against Furigana Notepad's 1. 変数電卓+ also leads on ads (none vs shown) and update cadence (daily vs every 2 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Furigana Notepad 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, Furigana Notepad every 2 days. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard4 real differences · 2 level
変数電卓+ versus Furigana Notepad: the parameters behind the verdict, then further details
Parameter変数電卓+Furigana Notepad
PriceFreeFree
Update frequencyDaily — betterEvery 2 days
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size27 MB53 MB
Age rating4+4+
DeveloperTakuya NemotoQuickServe Corporation

In-app purchases

None

変数電卓+

No in-app purchases

1 purchases

Furigana Notepad

One-time1
  • Premium$2.99

Questions

Is 変数電卓+ free?
変数電卓+ is free to download, with no in-app purchases.
Is Furigana Notepad free?
Furigana Notepad is free to download, with in-app purchases available.
Do 変数電卓+ or Furigana Notepad have ads?
Furigana Notepad shows ads; 変数電卓+ does not.
Which is updated more often, 変数電卓+ or Furigana Notepad?
変数電卓+ ships an update daily, and Furigana Notepad every 2 days. Most recently, 変数電卓+ was updated on October 25, 2026 and Furigana Notepad on October 26, 2026.

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