Crowdsorsa vs SepCalc

Crowdsorsa is a mobile game for crowdsourcing data collection and microtasks to improve the city environment. Players can earn money and compete against each other by participating in our fun and meaningful missions. The game is played by collecting or placing virtual objects on the map while taking photos or videos with your smartphone. Each object grows your earnings which you can request to be paid to your bank account whenever you want. Missions are organized only at certain times and in specific locations, to serve our clients’ needs and requirements. Players can, for example, photograph benches, bus stops and manhole covers, record videos of roads and cycling routes, or search and destroy invasive plants in their area. You will be instructed to each mission in the Crowdsorsa app. Following these instructions is very important to ensure that your photos and videos can be approved and rewarded to you. In case you need any help, you can easily contact us through the app. To create a Crowdsorsa user account and participate in the game, you need to be at least 18 years old or 13–17 years old with parental consent.

ONE CALCULATOR. EVERY LEVEL OF WORK. SepCalc combines an approachable everyday calculator with the depth of a professional scientific, graphing, programmable, and financial workstation. Start with a simple expression, then turn the result into an explanation, graph, table, scenario, script, or auditable report. FAST, FLEXIBLE CALCULATION • Natural algebraic entry and optional RPN • Exact fractions, radicals, symbolic constants, complex numbers, and arbitrary-size integers • Scientific, engineering, fixed-decimal, fraction, and mixed-number formats • Degrees, radians, gradians, DMS, bases, bitwise operations, variables, memory, and searchable history • Clear calculation steps, domain checks, precision controls, and reusable results SCIENTIFIC POWER • Computer algebra for simplifying, expanding, factoring, solving, symbolic calculus, series, and transforms • Numerical solvers, derivatives, integrals, optimization, differential equations, and error estimates • Vectors, matrices, linear systems, decompositions, eigenvalues, and least-squares analysis • Dimension-aware unit conversion and searchable physical constants with source metadata • Engineering, electrical, chemistry, geometry, and measurement tools GRAPH, VISUALIZE, AND EXPLORE • Cartesian, polar, parametric, implicit, inequality, sequence, and field plots • Trace roots, extrema, intersections, derivatives, tangents, and areas • Linked value tables, parameter sliders, animation, and adaptive discontinuity handling • Interactive 3D surfaces, curves, vectors, meshes, cross-sections, contours, and exports DATA AND STATISTICS • Typed tables with CSV and TSV import and export • Descriptive statistics, probability distributions, regression, inference, and ANOVA • Statistical plots, time-series tools, simulation, bootstrap, permutation, and Monte Carlo workflows • Optional permission-based sensor and laboratory data capture with provenance A FINANCIAL CALCULATOR BUILT FOR REAL DECISIONS • Complete TVM worksheets for N, I/Y, PV, PMT, and FV • Loans, mortgages, amortization schedules, refinance comparisons, and savings goals • Cash flows, NPV, IRR, capital budgeting, interest conversion, depreciation, dates, profit, and breakeven • Bond pricing and yield, portfolio performance and optimization, valuation and DCF • Options, Greeks, risk analytics, historical source-aware FX, and actuarial tools • Visible formulas, substitutions, timelines, assumptions, day-count conventions, and sign conventions PROGRAM IT YOUR WAY Use the bundled offline Python environment for scripts, notebook-style work, native math and finance APIs, charts, reusable projects, and custom calculators—without depending on a Mac, external Python installation, or network service. DESIGNED FOR TRUST SepCalc uses deterministic engines to calculate and verify results. Guided tools can help interpret a problem, but the mathematics remains inspectable. Core math, finance, graphing, and scripting work locally. Your projects stay under your control. Built for iPhone and iPad, with a capable Apple Watch companion, widgets, Shortcuts, sharing, accessibility support, and localized experiences in English, German, French, Spanish, Brazilian Portuguese, and Japanese. From a quick calculation to an advanced model, SepCalc keeps powerful tools organized, discoverable, and ready when you need them. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/