# CASIO fx vs Calculate84 Plus

The clearest difference is rating: Calculate84 Plus at 4.5 against CASIO fx's 2.7. Calculate84 Plus also leads on review sentiment (64% vs 33%) and ratings volume (305 vs 9). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. CASIO fx sells 1 in-app purchase, starting at $1.99 per month and Calculate84 Plus sells 10 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Calculate84 Plus holds the better App Store score, 4.5 against 2.7. That said, the two scores are not equally well evidenced: Calculate84 Plus has 305 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 33% of CASIO fx's written reviews are positive against 64% of Calculate84 Plus's.

CASIO fx ships an update every 6 months, Calculate84 Plus every 2 months. The most recent releases landed on June 10, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CASIO fx | Calculate84 Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.7 (9 ratings)](https://appshunter.io/ios/app/casio-fx-cg500/id1256306989/reviews) | **[4.5 (305 ratings)](https://appshunter.io/ios/app/calculate84-plus/id1472933065/reviews)** |
| Number of ratings | 9 | **305** |
| Positive reviews | 33.3% of reviews | **64.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 33 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [Di Venisco UG (haftungsbeschrankt)](https://appshunter.io/developer/1449451480) |

## 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

**In-app purchases (1)**

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


### Calculate84 Plus

[App page](https://appshunter.io/ios/app/calculate84-plus/id1472933065)

This app provides advanced scientific and graphing calculator functionality. It allows users to plot multiple functions, perform complex mathematical operations, analyze data with statistics, and manage matrices. An optional subscription unlocks even more features.

**Highlights:** Natural textbook equation input, Plot multiple functions with touch controls, Advanced math, number, and probability functions, 1- and 2- Variable statistics, Matrix arithmetic and equation solving, Extensive command catalog

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HyperCalc - Monthly | $2.99 | per month |
| HyperCalc - Monthly | $2.99 | per month |
| HyperCalc - Monthly | $4.99 | per month |
| HyperCalc - Monthly | $4.99 | per month |
| HyperCalc - Yearly | $14.99 | per year |
| HyperCalc - Yearly | $14.99 | per year |
| HyperCalc - Yearly | $19.99 | per year |
| HyperCalc - Yearly | $19.99 | per year |
| HyperCalc - Lifetime | $29.99 | one-time |
| HyperCalc - Lifetime | $39.99 | one-time |

**What reviewers like**

- 👍 Similar to TI-84
- 👍 Good for stats
- 👍 Accurate calculations
- 👍 No ads
- 👍 Fresh design

**What reviewers complain about**

- 💰 Many features require payment
- 💰 Not free as advertised
- 💰 Subscription model disliked
- 💰 Lifetime purchase issues
- 💰 Expensive ($30)

**Reported bugs**

- Domain incorrect in y= table
- App closes when pulling up table
- Cannot input negative matrices
- App freezes during IAP search
- Cannot drag functions

**Requested features**

- Dark mode
- Numeric solver (free)
- 2nd function
- Chinese language support
- Tutorial videos


## Frequently asked questions

### Is CASIO fx free?

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

### Is Calculate84 Plus free?

Calculate84 Plus is free to download, with in-app purchases available.

### Which has better reviews, CASIO fx or Calculate84 Plus?

Calculate84 Plus is rated higher. CASIO fx averages 2.7 out of 5 from 9 ratings, while Calculate84 Plus averages 4.5 from 305 ratings.

### Do CASIO fx or Calculate84 Plus have ads?

Neither CASIO fx nor Calculate84 Plus shows ads.

### Which is updated more often, CASIO fx or Calculate84 Plus?

CASIO fx ships an update every 6 months, and Calculate84 Plus every 2 months. Most recently, CASIO fx was updated on June 10, 2026 and Calculate84 Plus on September 21, 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.*