Trip Reader (NFC) vs CalcHub

Trip Reader uses iPhone's internal NFC reader to get balance and history from public transit cards issued across China. No Internet or Bluetooth is needed. Main features: • Balance and history • Show station names • Monthly discount policy and progress • Bus route number • Save history and comments • Sync to iCloud ************************************** Beijing Yikatong is not supported due to technical reason. ************************************** Cards supported: • Beijing Hutong Card (京津冀互联互通卡, with T-Union mark) • Tianjin City Card (with T-Union mark) • Nanjing City Card (with T-Union mark) • Suzhou Citizen Card • Shanghai Public Transportation Card (Purple card and T-Union card) • Kunshan Citizen Card • Guangzhou Yang Cheng Tong (CPU card only) • Lingnan Pass • Shenzhen Tong (FeliCa type not supported) • Chengdu Tianfu Tong (CPU card only) • Other T-Union or City Union cards issued across China (some dual-module cards may show T-Union history only) Note: Student cards, senior cards etc. are not supported. This app does not have access to official database. Please use with caution and do not rely on the result.

CalcHub replaces dozens of single-purpose apps with one powerful, offline calculator suite — built for math, finance, fitness, and health. Whether you are a student, professional, or everyday user, CalcHub delivers instant answers across every calculation you need — 100% offline, with absolute privacy. KEY FEATURES 1. Core Mathematical Suite • Basic Calculator: Simple, clutter-free layout for quick day-to-day arithmetic, percentage, and age calculations. • Scientific Calculator: Full array of logarithmic, trigonometric, exponential, and algebraic functions. • Precision Control: Custom decimal precision selectors (up to 10 decimal places) to suit any field. • Smart History Logs: Scroll through past equations and clear your log at any time with a single tap — stored privately on your device. 2. Advanced Financial Tools • Mortgage & Auto Loans: Estimate monthly EMI payments, down payments, and cumulative interest. • CD & Savings Compounding: Forecast compound interest growth with customizable frequency steps. • Tax Bracket Estimators: Calculate federal income tax details instantly. For estimation purposes only — consult a tax professional for filing advice. • Commission Tracker: Compute sales commissions, splits, and profit margins. • Currency Converter: Instantly convert between major world currencies. 3. Health, Wellness & Fitness • BMI & Healthy Weight: Instantly check body mass index and ideal weight estimates. • Daily Calorie & Macro Tracker: Calculate your TDEE and custom carbohydrate, fat, and protein intake breakdowns. • Body Fat Calculator: Estimate body composition percentages based on standard metrics. • Cycle Tracker: Forecast cycles and fertile windows. For informational purposes only — not a substitute for medical advice. 4. Instant Unit & Utility Converters • Unit Converters: Convert length, mass, velocity, pressure, and energy values instantly. • Date & Day Counters: Determine elapsed days between dates or find the day of the week for any year. • Science Kits: Find molecular weight constants, chemical parameters, and common scientific factors. PRIVACY-FIRST COMMITMENT Unlike other calculator apps, CalcHub never monitors your activity or collects your data: • 100% Offline: Every calculation runs entirely on your device. No internet connection required. • Zero Data Collection: No account registration, profiles, or email login required. • No Third-Party SDKs: No trackers, ads, or analytics networks. Your inputs remain entirely yours. • Private Storage: Your settings and history are saved locally and never leave your phone. MODERN DESIGN & UX • Responsive Layouts: Adapts dynamically to all iPhone sizes and orientations. • Light & Dark Mode: Harmonious blue theme that blends seamlessly with iOS system appearance. • Tactile Feedback: Responsive tap states and smooth transitions for a premium, engaging experience.