# Quick Graph vs Derivative Calculator

The clearest difference is review sentiment: Quick Graph at 94% against Derivative Calculator's 0%. Quick Graph also leads on update cadence (every 3 months vs every 11 months). Derivative Calculator's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Quick Graph sells 1 one-off in-app purchase. Derivative Calculator asks for nothing beyond the download.

Quick Graph ships an update every 3 months, Derivative Calculator every 11 months. The most recent releases landed on September 17, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Quick Graph | Derivative Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (405 ratings)](https://appshunter.io/ios/app/quick-graph/id292412367/reviews)** | — |
| Number of ratings | **405** | — |
| Positive reviews | **93.6% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 29 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KZ Labs](https://appshunter.io/developer/1091008972) | [Ahmad Sattar](https://appshunter.io/developer/1458483953) |

## What reviewers say

### Quick Graph

[App page](https://appshunter.io/ios/app/quick-graph/id292412367)

This powerful graphing calculator leverages multitouch displays for 2D and 3D equation visualization. It supports various coordinate systems and offers features like equation editing, evaluation, and a library for storing common formulas. Advanced features are available through an in-app purchase.

**Highlights:** 2D and 3D graphing, Multiple coordinate systems, Equation evaluation, Equation library, Copy/email/save graphs, Implicit and inequality graphing (advanced)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Features | $1.99 | one-time |

**What reviewers like**

- 🚀 Beautiful display
- 🚀 Quick and straightforward equations entry
- 🚀 Configurable axes and easy translation
- 👍 Wonderful and beautiful app
- 👍 Long tradition of working well

**What reviewers complain about**

- 🐛 Can't really graph polar
- 🐛 Redesign stinks
- 🐛 Few options for tablet version
- 🐛 Confusing design
- 🐛 Horrible manual

**Reported bugs**

- Crashes when trying to save to photos
- Equations not visible when projecting to external display
- Incorrect rendering of some functions like y=tan(x)*x
- Degradation in 3D plot quality when zooming out
- Equations not working as expected for simple cases like x+y=0

**Requested features**

- Display 3D surface with variable opacity or as wireframe
- Ability to define and display functions over a certain interval
- Ability to define and display parametric equations
- Ability to move cursor around within a function while typing
- Ability to animate equations with a parameter


### Derivative Calculator

[App page](https://appshunter.io/ios/app/derivative-calculator/id1601152374)

This application helps users evaluate functions through differentiation, offering step-by-step solutions and plots for solved functions. It's designed for students, teachers, and anyone interested in learning calculus concepts.

**Highlights:** Multiple differentiation (up to fifth derivative), Step-by-step solution explanations, Example functions for guidance, Plots for solved functions, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quick Graph free?

Quick Graph is free to download, with in-app purchases available.

### Is Derivative Calculator free?

Derivative Calculator is free to download, with no in-app purchases.

### Do Quick Graph or Derivative Calculator have ads?

Neither Quick Graph nor Derivative Calculator shows ads.

### Which is updated more often, Quick Graph or Derivative Calculator?

Quick Graph ships an update every 3 months, and Derivative Calculator every 11 months. Most recently, Quick Graph was updated on September 17, 2026 and Derivative Calculator on June 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*