# Quick Graph vs Calculator ∞

The clearest difference is price: Quick Graph at Free against Calculator ∞'s $5.99. Quick Graph also leads on review sentiment (94% vs 75%) and iOS requirement (9.0 vs 12.1). Calculator ∞'s advantage is ratings volume (6.3K vs 405) and chart position (#104 vs unranked). On rating, update cadence, ads and in-app purchases there is nothing between them.

Quick Graph is free to download; Calculator ∞ costs $5.99 up front. Quick Graph sells 1 one-off in-app purchase and Calculator ∞ sells 4 in-app purchases, starting at $3.49 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Quick Graph against 4.7 for Calculator ∞. That said, the two scores are not equally well evidenced: Calculator ∞ has 6.3K ratings behind it against 405, so its average is the more settled of the two. Written reviews are what separate them: 94% of Quick Graph's written reviews are positive against 75% of Calculator ∞'s.

Quick Graph ships an update every 3 months, Calculator ∞ every 2 months. The most recent releases landed on September 17, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Quick Graph | Calculator ∞ |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | [4.6 (405 ratings)](https://appshunter.io/ios/app/quick-graph/id292412367/reviews) | **[4.7 (6.3K ratings)](https://appshunter.io/ios/app/calculator/id458535809/reviews)** |
| Number of ratings | 405 | **6.3K** |
| Positive reviews | **93.6% of reviews** | 74.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#104** |
| Size | 3 MB | 46 MB |
| Requires iOS | **9.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KZ Labs](https://appshunter.io/developer/1091008972) | [Incpt.Mobis](https://appshunter.io/developer/445261166) |

## 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


### Calculator ∞

[App page](https://appshunter.io/ios/app/calculator/id458535809)

**Currently charting:** #104 Top Paid · Education (US App Store)

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

**Highlights:** Step-by-step solution hints, Math Photos Solver, Handwriting Recognition, AI Math Problem Solver, 2D Graphing, Unit Converter, Matrix/Vector Mode

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited OCR/Writing 1 Month | $3.49 | per month |
| Unlimited OCR/Writing 3 Months | $8.99 | per 3 months |
| 400 AI Recognition & Queries | $0.99 | one-time |
| 900 AI Recognition & Queries | $1.99 | one-time |


## Frequently asked questions

### Is Quick Graph free?

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

### Is Calculator ∞ free?

Calculator ∞ costs $5.99, and also offers in-app purchases.

### Which has better reviews, Quick Graph or Calculator ∞?

Calculator ∞ is rated higher. Quick Graph averages 4.6 out of 5 from 405 ratings, while Calculator ∞ averages 4.7 from 6.3K ratings.

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

Neither Quick Graph nor Calculator ∞ shows ads.

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

Quick Graph ships an update every 3 months, and Calculator ∞ every 2 months. Most recently, Quick Graph was updated on September 17, 2026 and Calculator ∞ on September 24, 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.*