# PocketCAS lite for Mathematics vs functionCalculator

The clearest difference is ads: PocketCAS lite for Mathematics at none against functionCalculator's shown. PocketCAS lite for Mathematics also leads on rating (4.7 vs 4.3) and update cadence (every 3 months vs every 11 months). functionCalculator's advantage is iOS requirement (10.3 vs 12.0). 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.

PocketCAS lite for Mathematics holds the better App Store score, 4.7 against 4.3. That said, the two scores are not equally well evidenced: PocketCAS lite for Mathematics has 204 ratings behind it against 6, so its average is the more settled of the two.

PocketCAS lite for Mathematics ships an update every 3 months, functionCalculator every 11 months. The most recent releases landed on September 16, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | PocketCAS lite for Mathematics | functionCalculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (204 ratings)](https://appshunter.io/ios/app/pocketcas-lite-for-mathematics/id517249689/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/functioncalculator/id1275985289/reviews) |
| Number of ratings | **204** | 6 |
| Positive reviews | 90.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 11 months |
| Monetization | **Free** | Ad-supported |
| Size | 25 MB | 6 MB |
| Requires iOS | 12.0 | **10.3** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timing Software GmbH](https://appshunter.io/developer/333261118) | [Jirou Fukuda](https://appshunter.io/developer/689603483) |

## What reviewers say

### PocketCAS lite for Mathematics

[App page](https://appshunter.io/ios/app/pocketcas-lite-for-mathematics/id517249689)

This advanced math application assists with a wide range of mathematical problems, from basic arithmetic to calculus, algebra, and statistics. It functions as a graphing calculator replacement, aids in homework, and supports complex calculations for academic and professional use.

**Highlights:** 2D and 3D plotting, Calculus functions (limits, derivatives), Linear algebra operations, Equation solving, Scripting language, Physical units and constants, iCloud sync

**In-app purchases:** none

**What reviewers like**

- 👍 Intuitive and user-friendly interface
- 📊 Excellent graphing capabilities with 3D visualization
- 💰 Free version available with substantial features
- 🧮 Powerful mathematical computation engine
- 📱 Convenient mobile alternative to expensive calculators

**What reviewers complain about**

- 🐛 Recent updates cause crashes on older documents
- 💸 Expensive compared to free alternatives
- 🔒 Limited free version functionality
- 🎮 Clunky interface in some areas
- ❌ Cannot plot certain advanced functions

**Reported bugs**

- App crashes when loading previously saved documents
- Crashes with no error feedback or debugging information
- Cannot plot certain mathematical functions
- Zoom scaling issues with 3D graphs (scales Z-axis incorrectly)
- Compatibility broken with iOS 6 after iOS 7 update

**Requested features**

- Dark theme/dark mode for UI
- Multiple polynomials on single graph
- Inverse button functionality
- Better zoom functionality for 3D graphs
- Improved documentation and tutorials


### 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 PocketCAS lite for Mathematics free?

PocketCAS lite for Mathematics is free to download, with no in-app purchases.

### Is functionCalculator free?

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

### Which has better reviews, PocketCAS lite for Mathematics or functionCalculator?

PocketCAS lite for Mathematics is rated higher. PocketCAS lite for Mathematics averages 4.7 out of 5 from 204 ratings, while functionCalculator averages 4.3 from 6 ratings.

### Do PocketCAS lite for Mathematics or functionCalculator have ads?

functionCalculator shows ads; PocketCAS lite for Mathematics does not.

### Which is updated more often, PocketCAS lite for Mathematics or functionCalculator?

PocketCAS lite for Mathematics ships an update every 3 months, and functionCalculator every 11 months. Most recently, PocketCAS lite for Mathematics was updated on September 16, 2026 and functionCalculator 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.*