# GeoGebra CAS Calculator vs Or Simplex Step

The clearest difference is in-app purchases: GeoGebra CAS Calculator at none against Or Simplex Step's 1. GeoGebra CAS Calculator also leads on ads (none vs shown). Or Simplex Step's advantage is update cadence (every 10 days vs monthly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Or Simplex Step sells 1 one-off in-app purchase. GeoGebra CAS Calculator asks for nothing beyond the download.

GeoGebra CAS Calculator ships an update monthly, Or Simplex Step every 10 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | GeoGebra CAS Calculator | Or Simplex Step |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (14 ratings)](https://appshunter.io/ios/app/geogebra-cas-calculator/id1436278267/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Free | — |
| Size | 104 MB | 45 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GeoGebra GmbH](https://appshunter.io/developer/1580697096) | [Bohdan Bezpartochnyi](https://appshunter.io/developer/1850325090) |

## What reviewers say

### GeoGebra CAS Calculator

[App page](https://appshunter.io/ios/app/geogebra-cas-calculator/id1436278267)

This powerful algebra calculator helps users solve complex math problems, including equations, derivatives, and integrals. It offers advanced features like working with undefined variables and finding function points. Users can also access free learning activities and share their results.

**Highlights:** Solve equations, Expand and factor expressions, Find derivatives and integrals, Work with undefined variables, Computer algebra system (CAS), Function point analysis, Table of values for functions

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

**In-app purchases:** none


### Or Simplex Step

[App page](https://appshunter.io/ios/app/or-simplex-step-by-step-solver/id6816232479)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OR Commented Pro | $2.99 | one-time |


## Frequently asked questions

### Is GeoGebra CAS Calculator free?

GeoGebra CAS Calculator is free to download, with no in-app purchases.

### Is Or Simplex Step free?

Or Simplex Step is free to download, with in-app purchases available.

### Do GeoGebra CAS Calculator or Or Simplex Step have ads?

Or Simplex Step shows ads; GeoGebra CAS Calculator does not.

### Which is updated more often, GeoGebra CAS Calculator or Or Simplex Step?

GeoGebra CAS Calculator ships an update monthly, and Or Simplex Step every 10 days. Most recently, GeoGebra CAS Calculator was updated on October 25, 2026 and Or Simplex Step 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.*