変数電卓+ vs Memo
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)
Memo
This straightforward note-taking app prioritizes simplicity and instant clarity. It offers essential features like folder organization, image memos, and color-coding, all accessible offline. The app is designed for quick idea capture and efficient organization without subscriptions or ads.
- Folder-in-folder organization
- Undo function
- Image memo creation
- Color-coded memos
- Autosave
- Offline functionality
- Dark mode support
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This simple note app for person who wanted an app focused solely on making note-taking as easy as possible. The key point is its instant clarity and simple usability at a glance, yet it still includes all the essential features you’d expect from a memo app. ■ Memo-Only Memo App Features -Folder-in-folder organization: create memos within child folders, with automatic display of the number of child memos -Undo function: return to your previous action with a single tap -Easily reorder memos by long-pressing and dragging -Create image memos (use the camera or select from your photo library) -Color-code your memos -Autosave -Works offline—even without an internet connection -Supports eye-friendly, popular dark mode (automatically applies if your device is set to dark mode) -Lightweight app for fast startup -One-time purchase: no subscriptions or ads ■ Recommended Uses -Quickly jot down your ideas as soon as they come to mind! Use text or camera photos. Categorize freely for easy searching! -Shopping list memos: color-code items as you buy them! -To-do lists: create today’s or this week’s to-dos, easily categorize by type! Mark completed tasks with colors! -Save screenshots of news you see while browsing on your phone! -List memorable quotes by person for quick reference and motivation! -Draft notes for essays or novels—easy to reorder and organize! -Brainstorm ideas like sticking sticky notes—perfect for planning sessions! -Create separate memo folders for each person you interact with—use as a topic notebook for friends or family! -Perfect as a flashcard app for students or professionals: write the question on the memo, the answer in a child memo, and color memos as you master them for a sense of achievement! -Daily ranking check: record as text or screenshot! ■ How to Use ▶ Creating Memos -Tap the + icon at the bottom right to create a text memo. -Tap the camera icon at the bottom right to take a photo or select one from your album to create an image memo. ▶ Operating Memos -Tap memo text to edit. -Use the icons on the right to “Change color,” “Move to child folder,” or “Delete.” -For image memos, an image icon will appear—tap it to view the saved image. -The number of child memos is shown as a number on the arrow to the child folder. ▶ Undo Action -Use the Undo button at the top right to return to your previous action—rest easy, even if you delete something by mistake!
Screenshots
Verdict
The clearest difference is price: 変数電卓+ at Free against Memo's $0.49. 変数電卓+ also leads on update cadence (daily vs every 6 days). On ads, in-app purchases, device support and iOS requirement 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
変数電卓+ is free to download; Memo costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.
変数電卓+ ships an update daily, Memo every 6 days. The most recent releases landed on September 18, 2026 and September 11, 2026 respectively.
| Parameter | 変数電卓+ | Memo |
|---|---|---|
| Price | Free — better | $0.49 |
| Positive reviews | — | 55.6% of reviews |
| Update frequency | Daily — better | Every 6 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 27 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Takuya Nemoto | GIGABIT GAME LAB |
In-app purchases
変数電卓+
No in-app purchases
Memo
No in-app purchases









