# Scientific Calculator Lab — Graphs, Matrices, Local

> Graphs, Matrices, Local (iPhone/iPad app by 润强 何.)

- Source: https://appshunter.io/ios/app/scientific-calculator-lab/id6800352097 (this page in markdown: same URL + `.md`)
- Developer: [润强 何](https://appshunter.io/developer/1821337209)
- Category: Utilities, Education
- Price: $3.99
- Age rating: 4+
- Requires: iOS 16.0 · 2 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-08-25
- Data updated: 2026-09-22
- User reviews in markdown: https://appshunter.io/ios/app/scientific-calculator-lab/id6800352097/reviews.md

## What is Scientific Calculator Lab?

Scientific Calculator Lab is a high-precision scientific calculator for students, engineers, teachers, researchers, and anyone who needs more than a basic calculator.

Edit natural formulas, plot functions, solve numeric equations, work with matrices and complex numbers, and convert units - core tools work offline, with one purchase and no subscription.

Calculate with confidence

- Natural formula editing with fractions, roots, powers, parentheses, variables, and a movable cursor
- Standard, scientific, programmer, statistics, and RPN modes
- High-precision numerical calculation up to 100 significant digits
- Fractions, recurring decimals, complex numbers, matrices, and numeric equation solving
- Numerical derivatives and integrals without requiring an internet connection
- Clear error states for invalid input, domain errors, overflow, and non-convergent results

Explore functions visually

- Plot explicit, parametric, and polar functions
- Display multiple functions, zoom, pan, trace, intersections, extrema, and tangent information
- Use parameter sliders and table data to explore relationships
- Inspect plotted functions with zoom, pan, numerical analysis tools, and image export

Built-in tools

- Convert length, weight, temperature, area, volume, speed, time, power, pressure, data, and energy
- Browse a curated formula library for mathematics, physics, chemistry, and engineering
- Reference a versioned library of physical constants
- Keep a calculation tape, search history, save bookmarks, and manage variables
- Export selected history and results for study or work

Made for iPhone and iPad

Use portrait or landscape layouts, iPad split view, a home screen widget, Shortcuts, VoiceOver, Dynamic Type, dark mode, and Chinese or English language support.

Private by design

Scientific Calculator Lab keeps core calculation available offline. No account, sign-in, ads, subscription, or third-party analytics is required. Your expressions, results, history, bookmarks, and variables stay on your device unless you choose to export them. Legal and support pages require a network connection only when you open them.

One-time purchase

Buy once in the App Store and use every feature included in the first release. No feature locks and no recurring fees.

Designed for dependable numerical work in the classroom, lab, office, and on the go. Always verify results before using them in safety-critical or professional decisions.


## Version history (last 1 release)

### 1.0 — 2026-08-25

No release notes.

## More apps by 润强 何

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- [Batch Watermark Pro](https://appshunter.io/ios/app/batch-watermark-pro/id6758757825)

All apps by 润强 何: https://appshunter.io/developer/1821337209

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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 2026-09-22.*