Comparison

Calculator+ 秘密のブラウザとメモ vs Protractor Measuring Angle

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

Head to head
About

Calculator+ 秘密のブラウザとメモ

Features
Read full description

■ あなただけの秘密を守る、最強のプライバシー管理アプリ 「人に見られたくないWebサイトがある」 「検索履歴を家族や友人に絶対に見られたくない」 「サプライズの計画をこっそりメモしておきたい」 そんな大切な情報を、誰にも気づかれることなく安全に保管するためのアプリです。 【このアプリの最大の特徴:カモフラージュ機能】 ホーム画面上のアイコンや、アプリを起動した直後の画面は、一般的な「ツールアプリ(電卓や時計)」に完全に偽装されています。 ふとした瞬間に誰かに画面を見られても、それが秘密の保管庫だとは誰も気づきません。 【主な機能】 鉄壁のカモフラージュ 起動時は「電卓」や「時計」として動作します。実際に計算も可能です。特定の操作(長押し)と生体認証(Face ID / Touch ID)を行った時だけ、秘密のデータへアクセスできます。 痕跡を残さないプライベートブラウザ アプリ内蔵の専用ブラウザを搭載。SafariやChromeに履歴を残さずWebサイトを閲覧できます。アプリを閉じれば、Cookieや閲覧データは即座に破棄されます。 サイバーな「秘密基地」デザイン ロックを解除した先は、映画のハッカー端末のようなスタイリッシュなダークモードデザイン。あなただけの特別な空間を演出します。 安心のローカル保存 保存したURLやメモは、あなたのiPhoneの中(ローカルストレージ)だけに暗号化されて保存されます。クラウドや外部サーバーには一切送信されないため、情報流出のリスクがありません。 【その他の機能】 URLごとのメモ機能 ワンタップでURLコピー アイコンのカスタマイズ変更 アプリを閉じて10秒経過したら自動的にカモフラージュ 【Pro版について】 基本機能はすべて無料でご利用いただけます。 無料版では最大10件までデータを保存可能です。アプリ内課金でPro版にアップグレードすると、保存件数が無制限になります。 プライバシーを、もっと身近に、もっと安全に。 今すぐ「Tools」をダウンロードして、あなただけの秘密基地を手に入れましょう。

About

Protractor Measuring Angle

This app transforms your iPhone into a versatile digital measuring tool. It offers multiple functions to measure angles, slopes, distances, and even height using your device's sensors and camera. Save and review your measurement history for future reference.

Highlights
  • Inclinometer for real-time tilt measurement
  • Screen protractor for precise angle reading
  • Camera level with horizon overlay
  • Photo angle measurement on existing images
  • Height calculator using trigonometry
  • AR Measure for 3D space measurements
  • On-screen ruler and digital compass
Read full description

Protractor Measuring Angle turns your iPhone into a precise digital toolbox — measure any angle, slope, or distance in seconds. 8 TOOLS IN ONE APP ▸ Inclinometer Real-time tilt measurement using your device sensors. Edge mode reads walls and frames; Flat mode works face-up on surfaces. Tap Calibrate to zero any offset. Freeze the reading with one tap. ▸ Screen Protractor Drag two arms to any angle and read the value instantly. Perfect for blueprints, technical drawings, and any image that needs an exact angle. ▸ Camera Level Live camera with a horizon overlay line. Freeze the frame to capture and save the reading. ▸ Photo Angle Measure angles directly on photos from your library using the same drag-and-lock protractor. ▸ Height Calculator Point at the top of a tree, building, or mast. Enter the distance to its base and your eye height — the app computes the exact height using trigonometry. ▸ AR Measure Drop points in augmented reality to measure real-world distances and the angle between any three points in 3D space. ▸ On-Screen Ruler A calibrated ruler in centimeters or inches. Run calibration once and it stays precise on your device. ▸ Compass Digital compass with cardinal and intercardinal directions. FLEXIBLE UNITS Switch between degrees, radians, percent slope, and roof pitch (X:12) for angles. Length reads in cm, in, m, or ft. MEASUREMENT HISTORY Every saved reading is logged with a thumbnail, timestamp, and optional note. Review, edit, or share any past measurement. Works offline. No account needed. Privacy Policy - https://msrtech.net/apps/protractor-measuring/privacy.html Terms - https://msrtech.net/apps/protractor-measuring/terms.html EULA - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calculator+ 秘密のブラウザとメモ4 screens
Protractor Measuring Angle4 screens

Verdict

The call

The clearest difference is in-app purchases: Protractor Measuring Angle at none against Calculator+ 秘密のブラウザとメモ's 1. Protractor Measuring Angle also leads on update cadence (every 2 days vs every 4 days) and iOS requirement (17.0 vs 26.1). 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. Calculator+ 秘密のブラウザとメモ sells 1 one-off in-app purchase. Protractor Measuring Angle asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator+ 秘密のブラウザとメモ ships an update every 4 days, Protractor Measuring Angle every 2 days. Both last shipped on October 2, 2026.

Scorecard3 real differences · 6 level
Calculator+ 秘密のブラウザとメモ versus Protractor Measuring Angle: the parameters behind the verdict, then further details
ParameterCalculator+ 秘密のブラウザとメモProtractor Measuring Angle
PriceFreeFree
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 4 daysEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad — betteriPhone
Requires iOS26.117.0 — better
Further details — not scored
Size1 MB16 MB
Age rating17+4+
DeveloperTomo TakahashiMSR TECH LLP

In-app purchases

1 purchases

Calculator+ 秘密のブラウザとメモ

One-time1
  • Pro版$2.99
None

Protractor Measuring Angle

No in-app purchases

Questions

Is Calculator+ 秘密のブラウザとメモ free?
Calculator+ 秘密のブラウザとメモ is free to download, with in-app purchases available.
Is Protractor Measuring Angle free?
Protractor Measuring Angle is free to download, with no in-app purchases.
Do Calculator+ 秘密のブラウザとメモ or Protractor Measuring Angle have ads?
Neither Calculator+ 秘密のブラウザとメモ nor Protractor Measuring Angle shows ads.
Which is updated more often, Calculator+ 秘密のブラウザとメモ or Protractor Measuring Angle?
Calculator+ 秘密のブラウザとメモ ships an update every 4 days, and Protractor Measuring Angle every 2 days. Most recently, Calculator+ 秘密のブラウザとメモ was updated on October 2, 2026 and Protractor Measuring Angle on October 2, 2026.

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