Calculator Plus #1 vs CryptVault

All-in-one basic calculator app for iPhone and iPad. Calculator Plus combines a basic calculator and a scientific one, percentage and tax calculator, financial and date calculator, currency and unit converter in one easy-to-use app. Stop switching between multiple calculator apps. Calculate faster, stay organized, and get accurate results with Calculator Plus. * Looking for a basic calculator with history and memory? * Calculator Plus automatically saves calculations so you can review results, continue calculations later, compare numbers, track expenses, and avoid repeating work. * Need a scientific calculator for school, engineering, or advanced math?* Use logarithms, trigonometric functions, exponents, algebra, scientific formulas, parentheses, and multi-step equations in one powerful calculator. * Need a percentage calculator while shopping? * Whether you’re asking “How much is 20% off?” or “What tip should I leave?”, Calculator Plus delivers accurate answers. Quickly calculate discounts, sales tax, tips, markups, profit margins, percentage increases, and percentage decreases. * Looking for a budgeting and finance calculator? * Track expenses, calculate bills, compare prices, plan budgets, and organize calculations with notes and history. * Need a currency converter and calculator in one app? * Convert currencies and measurement units while performing calculations - ideal for travel, shopping, business, and everyday use. * “How many days until my trip?” * Need a date calculator? Count days, calculate age, track deadlines, plan vacations, and manage important events. * Calculator Widget * Add the widget to your home screen for instant access. * Notes and Saved Calculations * Attach notes to saved calculations to organize expenses, transactions, tax records, budget plans, and currency conversions. * Perfect for: * — Everyday calculations — Scientific calculations and algebra for students — Shopping discounts and percentages — Budgeting, bills, and expenses — Tax and financial calculations — Currency and unit conversion — School homework and study — Multi-step equations with history — Date, age, and days calculations * Why Do Users Choose Calculator Plus? * Many calculator apps focus on only one task. Calculator Plus combines a scientific calculator, financial calculator, percentage calculator, tax calculator, currency converter, unit converter, date calculator, notes, history, widget, and multi-window support in one app. * Who Is Calculator Plus Designed For? * — Students and schoolchildren — Engineers and technical professionals — Business owners and freelancers — Finance professionals — Travellers and shoppers — Families managing household budgets Whether you need a calculator for budgeting, taxes, shopping, school, business, travel, engineering, or everyday math, Calculator Plus gives you all the tools you need in one app.

CryptVault は、写真・動画・書類を「あなたの鍵で」暗号化して守る、プライバシー第一のファイル金庫です。 ■ アカウント不要ですぐ使える インストールしてすぐ、端末内に暗号化Vaultを作成。写真アプリやファイルから追加すると、その場で暗号化して保存します。クラウドも登録も不要です。 ■ 端末内で完結する暗号化 ファイルは rclone crypt 互換の強力な暗号（scrypt 鍵導出 ＋ XSalsa20‑Poly1305）で暗号化されます。暗号鍵は端末の Keychain に保存され、外部に送信されません。 ■ 自分のサーバーにも“暗号化したまま” 必要なら WebDAV（Hetzner Storage Box、NAS、Nextcloud など）を設定して、暗号化済みファイルだけをアップロード。平文や鍵がサーバーに渡ることはありません。同じ鍵を使えば、複数の端末で同じVaultを読めます。 ■ 写真も動画もそのまま再生 サムネイル一覧、フルスクリーン表示、動画再生（mp4/mov に加え、webm/mkv/avi なども）に対応。 ■ 起動時ロック Face ID / Touch ID / パスコードで、アプリ全体をロックできます。 あなたのデータは、あなたのものだけ。CryptVault は、それを技術で保証します。