# El Arquitecto — Bespoke Scientific Calculator

> Bespoke Scientific Calculator (iPhone/iPad app by Brian Sipple.)

- Source: https://appshunter.io/ios/app/el-arquitecto/id6781396338 (this page in markdown: same URL + `.md`)
- Developer: [Brian Sipple](https://appshunter.io/developer/1476672187)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 18 MB
- Languages: American English
- Released: 2026-06-24
- Data updated: 2026-07-01
- User reviews in markdown: https://appshunter.io/ios/app/el-arquitecto/id6781396338/reviews.md

## What is 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.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| El Arquitecto Pro | $2.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-06-24

No release notes.

## More apps by Brian Sipple

- [Shannonlog](https://appshunter.io/ios/app/shannonlog/id6760983108)
- [Tetra Empire](https://appshunter.io/ios/app/tetra-empire/id6775070492)

All apps by Brian Sipple: https://appshunter.io/developer/1476672187

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-01.*