# Curve Fit Graph Calculator — iCurve Fitter : Data Curve Gen

> Derives mathematical equations from data points, plots graphs, and analyzes curves. (iPhone/iPad app by Amran AlQasmi.)

- Source: https://appshunter.io/ios/app/curve-fit-graph-calculator/id887076274 (this page in markdown: same URL + `.md`)
- Developer: [Amran AlQasmi](https://appshunter.io/developer/887076277)
- Category: Education, Utilities
- Price: $2.99
- Rating: 4.50/5 from 2 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 47 MB
- Languages: English
- Released: 2014-07-17
- Data updated: 2026-06-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/curve-fit-graph-calculator/id887076274/reviews.md

## What is Curve Fit Graph Calculator?

iCurve Fitter & iMulti Fitter, are of the best graph applications available in the App Store, yet easy to use. they are handy tools essential for doctors, engineers, students and laboratories. Used to derive the mathematical equation that fits a set or multiple sets of experimental data points, at any required degree. it uses advanced polynomial Interpolation method to plot those data points and draw the derived equation’s curve. Just enter your experimental readings in pairs of (x, y), and the app will do the rest for you, and represents the graphical output instantly on a Cartesian plane. You can always manipulate the graph interactively (zooming in/out, scrolling and tracking). so you can determine the value of (y) for any given value of (x), plus the slope of the curve at that specific point. also you can get the precise numbers using a dedicated Solver UI. and now you can calculate & visualize area under curve for a given interval. you always can get the derived equations and numerical results in a formatted sheet that can be exported or shared. Minima, maxima & root points are also calculated and represented automatically.

► Features: 
- Easy Data Points entry form.
- Specialized numeric & function keyboards.
- Controlling graph look & behavior. 
- Controlling properties of Pen, Text, Color for both curves & graph.
- Automatic axes Scaling.
- Zoom in/out, scrolling & Tracking.
- Reset Graph, Origin.
- Graph lock.
- Customizable Degree of Interpolation with direct curve redraw. 
- Exportable calculations Sheet.
- Interactively & numerically entered limits specification.
- Solver & Solved points collection with auto re-calculation.
- POI points collection with auto re-calculation.
- Live Curve Slope tracking & calculations.
- Precision Control.
- Area under curve presentation & calculations, with interactive tagging.
- Calculate the residual value for each point. 
- Calculate the correlation factor. 
- Importable Data Points.
- Certified by EAS Organization.

## Key features

- Data points entry form
- Polynomial interpolation
- Interactive graph manipulation
- Solver UI for precise numbers
- Area under curve calculations
- Exportable calculations sheet
- Minima, maxima, and root point calculation

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/curve-fit-graph-calculator/id887076274/reviews.md

### 4/5 — App is unlocked and working

*2024-03-08*

I finally was a able to close the locked up app and it’s now working fine.  After using, and learning more about the app I hope to upgrade my review to 5 Stars.

### 5/5 — Useful

*2016-03-28, version 2.0.0*

I bought it, used it daily. Helpful app.
fixed ios 9 compatibility issue in this version.

### 1/5 — Useless

*2016-01-15, version 1.9.8*

The Curve Draw app still does not open up, and the Curve Fit app is useless.  It only fits a polynomial curve to the data.  Also you have very little control over how the graph looks that it plots.  If you have access to Excel, it will check other types of curve as well as a polynomial, and makes excellent graphs.  If you are desperate and only need a polynomial curve fit, it may be OK in that case.  However, most people are looking for the best curve fit.

**Developer response:** It was update because of system version. Please check again, it's better now! Many Thanks.

## Frequently asked questions about Curve Fit Graph Calculator

### What is Curve Fit Graph Calculator used for?

Curve Fit Graph Calculator is used to derive mathematical equations that fit experimental data points. It plots these points, draws the derived equation's curve, and allows for interactive analysis of the graph.

### Who would benefit from using Curve Fit Graph Calculator?

Doctors, engineers, students, and laboratory professionals would benefit from this app. It's essential for anyone needing to analyze experimental data and derive mathematical equations.

### Can I manipulate the graph in Curve Fit Graph Calculator?

Yes, you can manipulate the graph interactively. This includes zooming in/out, scrolling, and tracking points to determine values and slopes.

### Does Curve Fit Graph Calculator offer export options?

Yes, the app provides an exportable calculations sheet. This allows you to share or save the derived equations and numerical results in a formatted sheet.

### What is the price of Curve Fit Graph Calculator?

Curve Fit Graph Calculator is a paid app, priced at $2.99. This one-time purchase grants access to all its features.

### How accurate is Curve Fit Graph Calculator?

The app uses advanced polynomial interpolation and offers precision control. It also calculates the correlation factor for each point, indicating the accuracy of the fit.

### Is Curve Fit Graph Calculator available on multiple devices?

Curve Fit Graph Calculator is supported on iPhone, iPad, and iPod. It is designed for iOS devices.

### How often is Curve Fit Graph Calculator updated?

The latest version of Curve Fit Graph Calculator was released on July 23, 2018. While it has not been updated recently, it remains a functional tool for its intended purpose.

## Version history (last 5 releases)

### 4.3 — 2018-07-23

This app has been updated by Apple to display the Apple Watch app icon.

- Minor bug fixed.

### 4.0 — 2018-03-26

- Compatibility with iOS 11 changes.
- Compatibility with iPhone X Notch.
- App store info updated.

### 3.9 — 2017-05-12

- Periodic update

### 3.6 — 2016-10-04

- ios 10 Compatibility.

### 3.5 — 2016-08-16

- Update App Store Artworks, according to the new Specs.

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## More apps by Amran AlQasmi

- [Curve Fit Graph Calc Lite](https://appshunter.io/ios/app/curve-fit-graph-calc-lite/id905121684)
- [Curve Plot Graph Calculator](https://appshunter.io/ios/app/curve-plot-graph-calculator/id955247478)
- [Curve Plot Graph Calc Lite](https://appshunter.io/ios/app/curve-plot-graph-calc-lite/id956528259)
- [Multi Plot Graph Calculator](https://appshunter.io/ios/app/multi-plot-graph-calculator/id962634920)
- [Digital Gate Circuit Simulator](https://appshunter.io/ios/app/digital-gate-circuit-simulator/id1130192861)

All apps by Amran AlQasmi: https://appshunter.io/developer/887076277

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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 2026-06-10.*