# Quadratic Master vs Logarithm Rules Calculator

The clearest difference is update cadence: Logarithm Rules Calculator at every 3 weeks against Quadratic Master's every 5 months. Logarithm Rules Calculator also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Quadratic Master sells 1 one-off in-app purchase and Logarithm Rules Calculator sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Quadratic Master ships an update every 5 months, Logarithm Rules Calculator every 3 weeks. The most recent releases landed on September 20, 2026 and August 17, 2026 respectively.

## The numbers

| Metric | Quadratic Master | Logarithm Rules Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (333 ratings)](https://appshunter.io/ios/app/quadratic-master/id351899924/reviews)** | — |
| Number of ratings | **333** | — |
| Positive reviews | 73.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 182 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Lukas Petr](https://appshunter.io/developer/820384324) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## 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


### Logarithm Rules Calculator

[App page](https://appshunter.io/ios/app/logarithm-rules-calculator/id1662899656)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is Quadratic Master free?

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

### Is Logarithm Rules Calculator free?

Logarithm Rules Calculator is free to download, with in-app purchases available.

### Do Quadratic Master or Logarithm Rules Calculator have ads?

Neither Quadratic Master nor Logarithm Rules Calculator shows ads.

### Which is updated more often, Quadratic Master or Logarithm Rules Calculator?

Quadratic Master ships an update every 5 months, and Logarithm Rules Calculator every 3 weeks. Most recently, Quadratic Master was updated on September 20, 2026 and Logarithm Rules Calculator on August 17, 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.*