# Quick Graph vs Proportia

The clearest difference is price: Quick Graph at Free against Proportia's $0.99. Quick Graph also leads on ratings volume (405 vs 5) and iOS requirement (9.0 vs 12.0). Proportia's advantage is in-app purchases (none vs 1) and update cadence (daily vs every 3 months). On review sentiment, ads and device support there is nothing between them.

Quick Graph is free to download; Proportia costs $0.99 up front. Quick Graph sells 1 one-off in-app purchase. Proportia asks for nothing beyond the download.

Proportia holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Quick Graph has 405 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 94% of Quick Graph's written reviews are positive against 100% of Proportia's.

Quick Graph ships an update every 3 months, Proportia daily. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Quick Graph | Proportia |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.6 (405 ratings)](https://appshunter.io/ios/app/quick-graph/id292412367/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/proportia/id6744179896/reviews)** |
| Number of ratings | **405** | 5 |
| Positive reviews | 93.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Daily** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 3 MB | 23 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KZ Labs](https://appshunter.io/developer/1091008972) | [Cognichine, LLC](https://appshunter.io/developer/1806408356) |

## 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


### Proportia

[App page](https://appshunter.io/ios/app/proportia/id6744179896)

This app transforms numerical data into clear, proportional visual representations like circles, rectangles, or bars. It simplifies understanding ratios, comparing values, and building numeracy skills for students, educators, and professionals.

**Highlights:** Dynamic shape visualization (circles, bars, rectangles), Proportional resizing based on values, Interactive value entry with calculator, Customizable shape colors and settings, Real-time visual feedback, Clean, dark theme design

**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 Proportia free?

Proportia costs $0.99, with no in-app purchases.

### Which has better reviews, Quick Graph or Proportia?

Proportia is rated higher. Quick Graph averages 4.6 out of 5 from 405 ratings, while Proportia averages 5.0 from 5 ratings.

### Do Quick Graph or Proportia have ads?

Neither Quick Graph nor Proportia shows ads.

### Which is updated more often, Quick Graph or Proportia?

Quick Graph ships an update every 3 months, and Proportia daily. Most recently, Quick Graph was updated on September 25, 2026 and Proportia 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.*