# GraphNCalc83 — Graphing calculator

> Advanced graphing calculator with touch input and programming. (iPhone/iPad app by Ernest Brock.)

- Source: https://appshunter.io/ios/app/graphncalc83/id744882019 (this page in markdown: same URL + `.md`)
- Developer: [Ernest Brock](https://appshunter.io/developer/289555912)
- Category: Education, Utilities
- Price: $12.99
- Rating: 4.90/5 from 4,033 App Store ratings · 270 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 10 MB
- Languages: European Spanish, American English
- Released: 2014-05-18
- Data updated: 2026-08-26
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/graphncalc83/id744882019/reviews.md

## What is GraphNCalc83?

GraphNCalc83 uses touch, color and blazing speed to handle your math problems. The familiar calculator keyboard, arrow keys and functions are enhanced with full touch input for all graphs, editors and menus. Enter calculations in natural textbook format. Enter fractions and view result as fractions. Trace graphs with your finger. Zoom in and out with a pinch. Explore regressions with a tap on the screen. Scroll through the list, matrix and calculation history with a swipe. Tap the ? key for help. Written using the latest 64 bit math libraries, GraphNCalc83 harnesses the amazing computing resources of the iPhone and iPad to provide a colorful, fast and fluid experience. Graphs scroll, glide and zoom smoothly. Matrix, statistics and BASIC programs run 500x times faster than traditional calculators.

GraphNCalc83 includes:

Algebraic entry: Enter problems using full algebraic textbook notation. The command line editor includes interactive parenthesis matching and high lighting, undo and redo, bubble function help and a 200 level calculation history and recall stack. Generate a PDF report of calculations for mailing or printing using the SEND function.

Math functions: Trigonometry, logarithms, function minimum, maximum, numeric integration and derivatives, general solver, real and imaginary numbers, combination, permutation, random number generation, normal, T, chi squared, Fisher, poisson and geometric distributions, binary shift and rotate, test and logic operations, list operations including sort, std. deviation, sum, sequence, matrix determinant, transpose, sum, ref, rref, addition, multiplication.

Graph functions, parametric, f(x,y) and polar equations and statistics plots: Full color graphs with touch to trace, pinch zoom, function minimum, maximum, intersections, asymptotes and numeric integration. Output graphs in high resolution PDF format for mailing or printing. Interactively explore function behavior using variables tied to slider bars.

Statistics, Inferential Statistics and Distributions: A set of inferential statistics worksheets and graphs of distributions are included. The regression analysis screen allows you to quickly compute, view and analyze a data set using a variety of curve fitting methods.

Table: Analyze functions using the table viewer. Use the split screen mode to simultaneously view a graph and table.

Matrix and Lists: Matrix and list editors and a full set of matrix and list operations are built in.

Unit Converter and Constants: Convert between a wide variety of scientific, engineering and common units. A large set of physical constants are also included.

BASIC programming: Create, edit, debug and run BASIC programs.  Programs run more than 500 times faster than traditional calculators. Import and execute .83p and .8xp files.

Chemistry: The calculator includes a full featured periodic table, a mass calculator and a data base of element properties. The touch interface allows you to view and interact with the periodic table to view by series, state, melting point, boiling point, electronegativity, electron affinity, valence, ionization, radius, hardness, modulus, density, conductivity, heat and year discovered.

Geometry: The geometry application computes perimeter and area for a variety of 2d geometric figures including squares, rectangles, parallelograms, triangles, polygons, circles, arcs and ellipses. A full triangle solver and interactive unit circle grapher are built in. Solve line intersections, project a point to a line and find a circle given 3 points.

Finance: Compute time value of money problems including annuities, lump sums and uneven cash flow analysis with IRR and NPV 

Built-in user guide: A user guide is included and is a touch away using the ? key or  ⓘ on any menu.  All functions have a full manual page with description of arguments and examples of use. Pop up bubble help displays function arguments during problem entry and program editing.

## Key features

- Touch-based graphing and editing
- Natural textbook notation input
- Advanced math and statistical functions
- Parametric, polar, and f(x,y) equation graphing
- BASIC programming with fast execution
- Unit converter and physical constants
- Interactive periodic table

## Chart rankings

- #25 in Top Paid · Education (US App Store)

## What do users think of GraphNCalc83?

Overall sentiment: positive

**Pros**

- 👍 Familiar TI-83/84 calculator interface
- 🚀 Powerful and feature-rich
- 💡 Touchscreen enhancements like zooming and tracing
- 👍 Convenient to have a graphing calculator on your phone
- 👍 Frequent updates and great developer support
- 👍 Affordable alternative to physical graphing calculators
- 👍 Useful for students and professionals alike
- 👍 Seamless integration with iOS devices

**Cons**

- 🐛 Occasional issues with graph rendering and zooming
- ⚠️ Not allowed to use on tests/exams like physical calculators

**Commonly reported bugs**

- Occasional crashes or freezes
- Inconsistent behavior when scrolling through calculation history

**Most requested features**

- Dark mode or customizable themes
- More advanced programming and scripting capabilities
- Support for additional calculator models (e.g., TI-89)

## Recent user reviews (10 of 270)

All indexed reviews: https://appshunter.io/ios/app/graphncalc83/id744882019/reviews.md

### 5/5 — Reliable

*2026-08-11, version 3.4*

I’ve had this calculator for 10 years now, since the start of high school. Best purchase!! No notes.

### 5/5 — The goat

*2026-07-28, version 3.4*

Literally the best I use it all the time

### 5/5 — Works perfectly

*2026-07-01, version 3.4*

Great app.

### 5/5 — It’s just as functional as a physical TI 83/84

*2026-06-03, version 3.4*

This app is great. It’s just as functional as a physical TI 83/84.

### 5/5 — Best Calculator App

*2026-05-15, version 3.4*

If you use a TI-84 or TI-83 regularly, you are going to love this app! I'm a high school math teacher. It is really wonderful to have an app that works like the calculator that I regularly use! I like it so much I promoted it on my math website!

### 5/5 — Best Calc for iOS

*2026-04-09, version 3.4*

I used a TI-83 in college (engineering) back in the 90’s and this is the perfect digital calculator I’ve found. Free updates with it are great. I don’t use anything else and haven’t for years.

### 5/5 — The best TI calculator app

*2026-04-04, version 3.4*

This is the best TI calculator app!!!!

### 1/5 — Horrible

*2026-03-16, version 3.4*

I hate math

### 5/5 — GrafNCalk83

*2026-03-16, version 3.4*

Great calculator. Handy, easy to use, excellent for educational as well as professional purposes. I am very pleased.

They are always finding ways to improve their already excellent product.

### 5/5 — By far the best graphing calc for iOS

*2026-02-20, version 3.4*

2026 - I can't count the number of other apps I have tried since 2010, but this one is the best. Keep up the great work! (4Q2019 update) This is STILL *the* calculator app that beats out all others. I wish schools would standardize on this app. (1Q2026 update) Still the best!

## Frequently asked questions about GraphNCalc83

### What does GraphNCalc83 do?

GraphNCalc83 is a sophisticated graphing calculator application designed for iOS devices. It allows users to perform complex mathematical calculations, graph various types of equations, and even run BASIC programs. The app emphasizes a fluid, touch-based interface for an intuitive user experience.

### What are the key features of GraphNCalc83?

Key features include touch-based input for graphs and menus, natural textbook notation for calculations, advanced math functions (trigonometry, logarithms, calculus), various plotting capabilities (parametric, polar), inferential statistics, a table viewer, matrix and list operations, unit conversion, physical constants, and BASIC programming.

### How much does GraphNCalc83 cost?

Based on the provided information, GraphNCalc83 is a paid application. It does not appear to have in-app purchases or advertisements, indicating a one-time purchase for full functionality.

### What kind of math problems can I solve with GraphNCalc83?

You can solve a wide range of math problems, including algebraic equations using textbook notation, trigonometric and logarithmic functions, calculus operations like integration and derivatives, and statistical analyses. It also supports complex numbers and various probability distributions.

### Can I use GraphNCalc83 for programming?

Yes, GraphNCalc83 includes a full BASIC programming environment. You can create, edit, debug, and run BASIC programs directly on your device. Programs run significantly faster than on traditional calculators, and you can import and execute .83p and .8xp files.

## Version history (last 5 releases)

### 3.4 — 2025-11-22

•Update for iOS26
•Fixed bugs in BASIC debugger
•Long tap history to copy to paste buffer

### 3.3 — 2025-08-13

• Improved accuracy of RREF function
• Updated for iOS changes

### 3.2 — 2024-03-05

• Fixed problem with Table view display

### 3.1 — 2024-02-18

• Update for iOS17
• Added statistics wizards
• Fixed issue with degree mark
• Fixed bug in matrix ref
• Fixed use of VARS:COLOR in DRAW functions

### 3.0 — 2022-02-08

• Update for iOS15.3
• Updated test mode
• Fixed stat freq list error
• Table now displays imaginary as NAN

## Apps similar to GraphNCalc83

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Photomath](https://appshunter.io/ios/app/photomath/id919087726) | 4.8 (732,920) | Free | Education |
| [Symbolab - AI Math Solver App](https://appshunter.io/ios/app/symbolab-ai-math-solver-app/id876942533) | 4.6 (26,120) | Free | Education |
| [Calculator ∞](https://appshunter.io/ios/app/calculator/id458535809) | 4.7 (6,306) | $5.99 | Education |
| [Mathway: Math Problem Solver](https://appshunter.io/ios/app/mathway-math-problem-solver/id467329677) | 4.9 (424,634) | Free | Education |
| [Math AI Homework Helper,Solver](https://appshunter.io/ios/app/math-ai-homework-helpersolver/id1565102390) | 4.7 (30,556) | Free | Education |
| [Taculator 84 Graphing Calc](https://appshunter.io/ios/app/taculator-84-graphing-calc/id1457737367) | 4.5 (7,531) | Free | Education |

## More apps by Ernest Brock

- [allRPNCalc Calculator](https://appshunter.io/ios/app/allrpncalc-calculator/id289555909)
- [BA Finance Pro](https://appshunter.io/ios/app/ba-finance-pro/id379775898)
- [10BII Calc HD](https://appshunter.io/ios/app/10bii-calc-hd/id382452060)
- [BA Finance Plus](https://appshunter.io/ios/app/ba-finance-plus/id383074322)
- [12Calc](https://appshunter.io/ios/app/12calc/id780780002)

All apps by Ernest Brock: https://appshunter.io/developer/289555912

## Related topics

[ernest brock](https://appshunter.io/ios/topics/ernest-brock) · [obcalc](https://appshunter.io/ios/topics/obcalc) · [pgr calculator](https://appshunter.io/ios/topics/pgr-calculator) · [chemistry calculator solutions](https://appshunter.io/ios/topics/chemistry-calculator-solutions) · [slope calculator & arc finder](https://appshunter.io/ios/topics/slope-calculator-arc-finder) · [tnm cancer staging calculator](https://appshunter.io/ios/topics/tnm-cancer-staging-calculator) · [calculator graph](https://appshunter.io/ios/topics/calculator-graph) · [promega biomath calculators](https://appshunter.io/ios/topics/promega-biomath-calculators) · [esc gas flow rate calculator](https://appshunter.io/ios/topics/esc-gas-flow-rate-calculator) · [graphing calculator](https://appshunter.io/ios/topics/graphing-calculator) · [scout economics calculator](https://appshunter.io/ios/topics/scout-economics-calculator)

---

*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 2026-08-26.*