El Arquitecto

El Arquitecto is a scientific calculator built like an instrument: an architect's drafting table crossed with race-car telemetry. It computes correctly first, then gives you a look worth keeping. THE CALCULATOR (free, forever) - A real expression engine: correct order of operations, implicit multiplication, scientific notation. - Trigonometric, inverse, and hyperbolic functions; logarithms; powers; roots; factorial; percent. - BASIC and SCIENTIFIC keypads with a second-function layer and memory keys. - Degree and radian modes, tactile haptics, and a crafted parchment design. - Built for accessibility: high-contrast type, Reduce Motion support, Dynamic Type. UNLOCK PRO (one-time purchase) - CONVERT: an engineering constants reference (tap to insert), your own saved custom constants, and a unit converter that sends results straight back to the calculator. - LOG: a persistent calculation history; tap any past line to reuse its result. - PERSONALIZE: a dark "Ink" edition, accent colors, a tunable paper texture, and alternate display fonts. One purchase. No subscription. Restores across your devices.