# Quadratic Master vs functionCalculator

The clearest difference is in-app purchases: functionCalculator at none against Quadratic Master's 1. functionCalculator also leads on iOS requirement (10.3 vs 16.0). Quadratic Master's advantage is ads (none vs shown) and ratings volume (333 vs 6). On price and device support there is nothing between them.

Both are free to download. Quadratic Master sells 1 one-off in-app purchase. functionCalculator asks for nothing beyond the download.

Quadratic Master holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Quadratic Master has 333 ratings behind it against 6, so its average is the more settled of the two.

Quadratic Master ships an update every 5 months, functionCalculator every 11 months. The most recent releases landed on October 15, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Quadratic Master | functionCalculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (333 ratings)](https://appshunter.io/ios/app/quadratic-master/id351899924/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/functioncalculator/id1275985289/reviews) |
| Number of ratings | **333** | 6 |
| Positive reviews | 73.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 11 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 4 MB | 6 MB |
| Requires iOS | 16.0 | **10.3** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Petr](https://appshunter.io/developer/820384324) | [Jirou Fukuda](https://appshunter.io/developer/689603483) |

## What reviewers say

### Quadratic Master

[App page](https://appshunter.io/ios/app/quadratic-master/id351899924)

This app helps users solve and learn about quadratic equations, inequations, and functions. It offers tools for students and professionals, including solvers, formulas, and visual aids like 3D parabola models. Share solutions and explore function graphs with this educational math tool.

**Highlights:** Quadratic equation solver, Quadratic inequation solver, Quadratic function solver, 3D rotating parabola model, Graph mixer, Detailed solution explanations

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full version | $3.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Solves quadratic equations
- 🚫 No ads
- 📚 Helpful for homework
- 🚀 Handy for complicated equations

**What reviewers complain about**

- 🐛 Input keypad incomplete
- 🐛 App not working
- 🐛 Cannot enter problems
- 🐛 Not showing in app library
- 🐛 Cannot change addition to subtraction

**Reported bugs**

- Input keypad incomplete after iOS update
- App not working/unusable
- Cannot enter problems
- Not showing in app library
- Cannot change addition to subtraction

**Requested features**

- Ability to use large decimals/scientific notation
- Cooler icon
- Change standard formula to vertex form


### functionCalculator

[App page](https://appshunter.io/ios/app/functioncalculator/id1275985289)

This app calculates the value of mathematical functions y = f(x) for various types of numbers, including irrational ones. It displays results as exact fractions with square roots and can convert them to decimals. The app also supports calculations involving two different input values, alpha and beta.

**Highlights:** Calculate function values for any number type, Display results as exact fractions, Convert results to decimal, Perform operations on two input values, Supports irrational numbers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quadratic Master free?

Quadratic Master is free to download, with in-app purchases available.

### Is functionCalculator free?

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

### Which has better reviews, Quadratic Master or functionCalculator?

Quadratic Master is rated higher. Quadratic Master averages 4.6 out of 5 from 333 ratings, while functionCalculator averages 4.3 from 6 ratings.

### Do Quadratic Master or functionCalculator have ads?

functionCalculator shows ads; Quadratic Master does not.

### Which is updated more often, Quadratic Master or functionCalculator?

Quadratic Master ships an update every 5 months, and functionCalculator every 11 months. Most recently, Quadratic Master was updated on October 15, 2026 and functionCalculator on October 11, 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.*