eAbacus vs GeniusCalc

eAbacus is a modern digital abacus for iPhone, iPad, and Mac. Feel natural bead motion under your fingertips—great for mental-math practice, mnemonic lessons, and classroom demos. REAL DIALING • Tap, drag, and multi-touch multiple rods at once • Optional click sound and haptics • Live reading above the board, plus place-value labels on the beam • Auto or manual rod count, with a clear units marker TEACHING MODE • Addition, subtraction, multiplication, and division mnemonics • Step-by-step bead highlights—practice or watch a demo • Clear the board to return to a verse’s starting state • Ideal for self-study, parents, and teachers EXAM MODE • Timed problems with selectable operations and difficulty • Dial the answer on the board, then submit • Closed-book option hides the reading and place labels—perfect for quizzes HISTORY & SHARE • Saves from clears, finished exams, and manual snapshots • Restore any board state, or screenshot and share MAC PODIUM MIRRORING • Dial on iPhone or iPad; a Mac on the same LAN mirrors the board live • Giant reading, place labels, and teaching steps for projection • Built for classrooms, tutoring, and live demos Whether you’re learning abacus basics, practicing mental arithmetic, or teaching mnemonics on a big screen—eAbacus makes the classic abacus ready for today’s devices.

Genius Calculator is a lightweight, powerful, and all-in-one calculation tool for daily use, student learning, engineering research, and financial scenarios. Fast calculation, accurate results, and highly customizable design bring you a simple and professional computing experience. 【Core Features】 1. Calculation｜Basic & Scientific • Basic calculator: Addition, subtraction, multiplication, division, percentage and decimal operations for daily accounting. • Scientific calculator: Trigonometry, logarithm, exponent, square root and complex formulas for academic and professional use. 2. Conversion｜Unit & Currency & Time • Unit conversion: Length, weight, area, volume, temperature, speed and more. • Real-time exchange rate: Global currency conversion with updated rates. • Time tools: Date interval, countdown, world clock and timezone lookup. 3. Toolbox｜Professional Computing • Statistical calculation: Mean, variance, standard deviation and data analysis. • Family relationship calculator: Intelligent kinship title inference. • Equation solver: Solve linear, quadratic and cubic equations automatically. • Abacus Calculator: Added abacus calculator with authentic bead operation. 4. Personalization • Multiple stylish UI themes • Custom keypress sound effects • Real human voice reading for results • Adjustable decimal precision • Full English / Chinese bilingual support 【User Experience】 Ultra-fast response, one-hand friendly layout, lightweight size and low power consumption. Smooth and clean for daily and professional calculation. 【Premium Membership】 Start your free trial to unlock all advanced tools and remove ads for a pure professional calculation experience. —— Subscription & Pricing Information —— Genius Calc Pro subscription unlocks all advanced calculation tools and removes all ads: • Annual Auto‑Renewable Subscription • Monthly Auto‑Renewable Subscription • Lifetime One‑Time Purchase (non‑renewing) Payment will be charged to your iTunes account upon purchase confirmation. Auto‑renewable subscription renews automatically within 24‑hours before the end of current period unless auto‑renewal is turned off at least 24‑hours prior to the end of the current period. You may manage or cancel subscriptions in Settings > Apple ID > Subscriptions. Cancellation takes effect at the end of the active subscription period. Terms of Use: https://www.geniuscalu.com/terms.html Privacy Policy: https://www.geniuscalu.com/privacy.html