# GraphCalc: Equations & Matrix — Calculator, Grapher & Steps

> Calculator, Grapher & Steps (iPhone/iPad app by Daniel Aristizabal.)

- Source: https://appshunter.io/ios/app/graphcalc-equations-and-matrix/id6804928302 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Aristizabal](https://appshunter.io/developer/6804928304)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 41 MB
- Languages: American English
- Released: 2026-09-05
- Data updated: 2026-09-23
- User reviews in markdown: https://appshunter.io/ios/app/graphcalc-equations-and-matrix/id6804928302/reviews.md

## What is GraphCalc?

GraphCalc is a complete math toolkit for students, teachers, and anyone who needs to calculate, graph, or solve — all in one app, all on your device.

CALCULATOR (Free)
A full scientific calculator with trigonometric, logarithmic, exponential, and root functions, plus a live preview of your result as you type.

GRAPHER (Free)
Plot any function and explore it with pinch-to-zoom and pan. Add a slider for any parameter (like the “a” in a·sin(x)) and watch the curve move as you drag it. See exactly where two curves cross, find roots and extrema automatically, and share a clean image of your graph.

UNIT CONVERTER (Free)
Convert length, mass, temperature, area, volume, speed, time, pressure, energy, power, and digital storage — all offline.

EQUATIONS
Solve systems of linear equations (2 to 5 variables) and quadratic equations, step by step.

MATRICES
Compute determinants, inverses, and transposes, or add, subtract, and multiply matrices up to 4×4.

CALCULUS
See the full worked solution, not just the answer:
• Derivatives — every rule applied, one step at a time (product, quotient, chain, power)
• Limits — direct substitution, with L'Hôpital's rule applied automatically when needed
• Integrals — numeric area under any curve

Equations, Matrices, and Calculus (with full step-by-step work) unlock together with a single one-time purchase of $4.99 — no subscription, no recurring charges, yours forever.

GraphCalc works completely offline: nothing is ever collected, uploaded, or shared. Available in English and Spanish, matching your device's language automatically.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Unlock | $4.99 | one-time |



## Version history (last 3 releases)

### 1.1.1 — 2026-09-19

Bug fixes and stability improvements.

### 1.1 — 2026-09-14

New in this update:
• Derivatives and limits now show the full worked solution, step by step
• L'Hôpital's rule applied automatically for indeterminate limits
• Free unit converter: length, mass, temperature, area, volume, speed, time, pressure, energy, power, and digital storage
• Sliders for any parameter in your functions (e.g. the a in a·sin(x))
• See exactly where two curves intersect on the graph

### 1.0 — 2026-09-05

No release notes.

## More apps by Daniel Aristizabal

- [PocketScan: Scan & PDF](https://appshunter.io/ios/app/pocketscan-scan-and-pdf/id6806470226)
- [PL-300 Mastery](https://appshunter.io/ios/app/pl-300-mastery/id6809628586)
- [DP-600 Mastery](https://appshunter.io/ios/app/dp-600-mastery/id6811665175)
- [DP-700 Mastery](https://appshunter.io/ios/app/dp-700-mastery/id6812953477)

All apps by Daniel Aristizabal: https://appshunter.io/developer/6804928304

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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 2026-09-23.*