# PocketCAS lite for Mathematics vs FX Calculus Problem Solver

The clearest difference is rating: PocketCAS lite for Mathematics at 4.7 against FX Calculus Problem Solver's 3.4. PocketCAS lite for Mathematics also leads on review sentiment (91% vs 48%) and monetization model (free vs free with in-app purchases). On price, ratings volume, update cadence and ads 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 3.4. Both are backed by a comparable volume of ratings — 204 and 78 respectively. Written reviews point the same way: 91% of PocketCAS lite for Mathematics's written reviews are positive against 48% of FX Calculus Problem Solver's.

PocketCAS lite for Mathematics ships an update every 3 months, FX Calculus Problem Solver every 5 months. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PocketCAS lite for Mathematics | FX Calculus Problem Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (204 ratings)](https://appshunter.io/ios/app/pocketcas-lite-for-mathematics/id517249689/reviews)** | [3.4 (78 ratings)](https://appshunter.io/ios/app/fx-calculus-problem-solver/id833967111/reviews) |
| Number of ratings | **204** | 78 |
| Positive reviews | **90.7% of reviews** | 48.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 35 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Timing Software GmbH](https://appshunter.io/developer/333261118) | [Euclidus Inc](https://appshunter.io/developer/490623202) |

## 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


### FX Calculus Problem Solver

[App page](https://appshunter.io/ios/app/fx-calculus-problem-solver/id833967111)

Solve calculus homework and textbook problems with this comprehensive math software. It offers animated solution steps, a scientific and graphing calculator, and an intuitive editor for typing in your own problems. Ideal for students preparing for exams.

**Highlights:** Animated step-by-step solutions, Scientific calculator, Graphing calculator, Automatic problem solving, Math problem expression editor, Over 1,000 sample problems

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent for learning calculus
- 👍 Step-by-step solutions provided
- 👍 Helpful for reviewing concepts
- 👍 Good for checking homework answers
- 👍 Can simplify complex problems

**What reviewers complain about**

- 😞 Frequent crashes and freezing
- 😞 Inaccurate answers for some problems
- 😞 "Scam" due to payment issues
- 😞 Premium version stops working after purchase
- 😞 Paid content is essential

**Reported bugs**

- App crashes when launching animated solutions board
- App crashes after solving 2-3 operations
- App freezes when clicking solve button
- App crashes when hitting solve button
- App stops working after paying for premium

**Requested features**

- Add summation functionality
- Add trigonometry functions and equations
- Add camera recognition for problems
- Add curve fitting feature
- Add INC and DEC coordinates on graph


## Frequently asked questions

### Is PocketCAS lite for Mathematics free?

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

### Is FX Calculus Problem Solver free?

FX Calculus Problem Solver is free to download, with no in-app purchases.

### Which has better reviews, PocketCAS lite for Mathematics or FX Calculus Problem Solver?

PocketCAS lite for Mathematics is rated higher. PocketCAS lite for Mathematics averages 4.7 out of 5 from 204 ratings, while FX Calculus Problem Solver averages 3.4 from 78 ratings.

### Do PocketCAS lite for Mathematics or FX Calculus Problem Solver have ads?

Neither PocketCAS lite for Mathematics nor FX Calculus Problem Solver shows ads.

### Which is updated more often, PocketCAS lite for Mathematics or FX Calculus Problem Solver?

PocketCAS lite for Mathematics ships an update every 3 months, and FX Calculus Problem Solver every 5 months. Most recently, PocketCAS lite for Mathematics was updated on September 29, 2026 and FX Calculus Problem Solver on September 20, 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.*