# jCalc vs Permutation Combination

The clearest difference is review sentiment: jCalc at 85% against Permutation Combination's 0%. jCalc also leads on rating (4.6 vs 2.0) and ads (none vs shown). Permutation Combination's advantage is update cadence (every 2 days vs every 7 months) and iOS requirement (12.0 vs 14.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

jCalc holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: jCalc has 259 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of jCalc's written reviews are positive against 0% of Permutation Combination's.

jCalc ships an update every 7 months, Permutation Combination every 2 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | jCalc | Permutation Combination |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (259 ratings)](https://appshunter.io/ios/app/jcalc-scientific-calculator/id885770968/reviews)** | [2.0 (1 ratings)](https://appshunter.io/ios/app/permutation-combination/id6448662601/reviews) |
| Number of ratings | **259** | 1 |
| Positive reviews | **85.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 2 days** |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 31 MB |
| Requires iOS | 14.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jon Ericksen](https://appshunter.io/developer/706765908) | [HIWAZERO](https://appshunter.io/developer/1621048794) |

## What reviewers say

### jCalc

[App page](https://appshunter.io/ios/app/jcalc-scientific-calculator/id885770968)

This app is a powerful yet easy-to-use scientific calculator designed for students, teachers, and professionals. It simplifies complex calculations involving fractions, decimals, and advanced equations with flexible answer formats and smart conversions.

**Highlights:** Fractions and decimals calculations, Flexible answer formats, Smart conversions, Advanced math functions, Memory recall, Auto parentheses

**In-app purchases:** none

**What reviewers like**

- 👍 Free and ad-free calculator app
- 🎨 Multiple customizable themes and color schemes
- 📜 Running tape/history feature to review calculations
- 🔢 Fraction, decimal, and mixed number support
- ⚡ Fast and efficient performance

**What reviewers complain about**

- 🐛 Display rendering issues with character visibility
- 🐛 App freezing and crashing problems
- 📱 Landscape mode not working on iPhone
- 🔌 Limited button size for users with larger fingers
- 📢 Intrusive ad banner at top of screen

**Reported bugs**

- Display characters not rendering correctly (about 1/4 of characters missing)
- Fraction buttons not working as intended
- iPhone landscape mode does not rotate or display split view
- App freezes during use
- Character display issues with numbers 0-9 appearing incomplete

**Requested features**

- Widget support for home screen
- Scientific calculator functions (sin, cos, tan, square root, squaring)
- Original version 1.0 color scheme option
- Running tape format in newer versions
- Screen rotation lock for landscape mode


### Permutation Combination

[App page](https://appshunter.io/ios/app/permutation-combination/id6448662601)

Easily calculate permutations and combinations for mathematics and statistics. This tool simplifies complex calculations, helping users save time and improve accuracy in exams and studies.

**Highlights:** Permutation calculations, Combination calculations, Time-saving for exams, Mathematical and statistical use, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is jCalc free?

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

### Is Permutation Combination free?

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

### Which has better reviews, jCalc or Permutation Combination?

jCalc is rated higher. jCalc averages 4.6 out of 5 from 259 ratings, while Permutation Combination averages 2.0 from 1 ratings.

### Do jCalc or Permutation Combination have ads?

Permutation Combination shows ads; jCalc does not.

### Which is updated more often, jCalc or Permutation Combination?

jCalc ships an update every 7 months, and Permutation Combination every 2 days. Most recently, jCalc was updated on October 21, 2026 and Permutation Combination on October 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.*