# CASIO fx vs FE Exam Prep

The clearest difference is price: CASIO fx at Free against FE Exam Prep's $24.99. CASIO fx also leads on iOS requirement (12.0 vs 17.0). FE Exam Prep's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 6 months). On ads and device support there is nothing between them.

CASIO fx is free to download; FE Exam Prep costs $24.99 up front. CASIO fx sells 1 in-app purchase, starting at $1.99 per month. FE Exam Prep asks for nothing beyond the download.

CASIO fx ships an update every 6 months, FE Exam Prep every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | CASIO fx | FE Exam Prep |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Rating | **[2.7 (9 ratings)](https://appshunter.io/ios/app/casio-fx-cg500/id1256306989/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 10 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [Kathryn Halterman](https://appshunter.io/developer/1879154277) |

## What reviewers say

### CASIO fx

[App page](https://appshunter.io/ios/app/casio-fx-cg500/id1256306989)

This app provides advanced mathematical and scientific calculation tools, including graphing and a computer algebra system. It offers a user interface similar to the handheld fx-CG500, with access to various applications like eActivity, Spreadsheet, Geometry, and Physium. It's designed to enhance learning for both new and experienced users.

**Highlights:** Complex calculations, Graph drawing, Computer Algebra System (CAS), eActivity for worksheets, Spreadsheet with statistical analysis, Geometry with animations, Physium periodic table and constants

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| fx-CG500 1 Month Subscription | $1.99 | per month |


### FE Exam Prep

[App page](https://appshunter.io/ios/app/fe-exam-prep/id6781744226)

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

**In-app purchases:** none


## Frequently asked questions

### Is CASIO fx free?

CASIO fx is free to download, with in-app purchases available.

### Is FE Exam Prep free?

FE Exam Prep costs $24.99, with no in-app purchases.

### Do CASIO fx or FE Exam Prep have ads?

Neither CASIO fx nor FE Exam Prep shows ads.

### Which is updated more often, CASIO fx or FE Exam Prep?

CASIO fx ships an update every 6 months, and FE Exam Prep every 2 months. Most recently, CASIO fx was updated on November 5, 2026 and FE Exam Prep on October 31, 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.*