# Iso2Ortho vs GeoGebra Graphing Calculator

The clearest difference is review sentiment: GeoGebra Graphing Calculator at 54% against Iso2Ortho's 0%. GeoGebra Graphing Calculator also leads on in-app purchases (none vs 1) and update cadence (monthly vs every 12 months). Iso2Ortho's advantage is iOS requirement (9.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. Iso2Ortho sells 1 one-off in-app purchase. GeoGebra Graphing Calculator asks for nothing beyond the download.

Iso2Ortho ships an update every 12 months, GeoGebra Graphing Calculator monthly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Iso2Ortho | GeoGebra Graphing Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (284 ratings)](https://appshunter.io/ios/app/geogebra-graphing-calculator/id1146717204/reviews)** |
| Number of ratings | — | **284** |
| Positive reviews | 0.0% of reviews | **53.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 12 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 181 MB | 104 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roth Educational Services (PTY) LTD](https://appshunter.io/developer/623190971) | [GeoGebra GmbH](https://appshunter.io/developer/1580697096) |

## What reviewers say

### Iso2Ortho

[App page](https://appshunter.io/ios/app/iso2ortho/id623190828)

This app offers a tool for projecting isometric models to display four orthographic views, automatically updating as you switch between 1st and 3rd angle projections. It also includes an educational game designed to reinforce understanding of orthographic view positioning through challenges and scoring.

**Highlights:** Isometric to orthographic projection tool, Automatic view updates, 1st and 3rd angle projection switching, Educational game for view positioning, Scoring based on correctness and speed, Level progression system

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Shapes | $1.99 | one-time |


### GeoGebra Graphing Calculator

[App page](https://appshunter.io/ios/app/geogebra-graphing-calculator/id1146717204)

This application allows users to easily graph functions and equations, identify key points, and share their work. It's a powerful tool for learning math and science, offering features like regression and access to learning activities.

**Highlights:** Graph functions, polar and parametric curves, Interactive transformations with sliders, Find special function points (roots, min, max, intersections), Perform regression with best-fit lines, Search for learning activities, Save and share graphs

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

**In-app purchases:** none

**What reviewers like**

- 📊 Powerful graphing and visualization capabilities
- 💰 Completely free with no advertisements
- 🎓 Excellent educational tool for mathematics students
- ⚡ Fast and responsive for most functions
- 🎨 Clean and intuitive user interface design

**What reviewers complain about**

- 🐛 Frequent app crashes and unexpected closures
- 💾 Cannot save work or projects persistently
- 📱 Mobile version lacks features from desktop version
- ⌨️ Difficult keyboard input for complex expressions
- 🔄 Work lost when switching between apps

**Reported bugs**

- App crashes when entering complex equations
- Graphs disappear when touched or zoomed
- Functions deleted when app moves to background
- Exam mode locks device for 8 hours
- Cannot paste content on mobile version

**Requested features**

- Save and load functionality for projects
- User account login and cloud storage
- 3D graphing capabilities
- Fraction input support
- Radian mode for trigonometric functions


## Frequently asked questions

### Is Iso2Ortho free?

Iso2Ortho is free to download, with in-app purchases available.

### Is GeoGebra Graphing Calculator free?

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

### Do Iso2Ortho or GeoGebra Graphing Calculator have ads?

Neither Iso2Ortho nor GeoGebra Graphing Calculator shows ads.

### Which is updated more often, Iso2Ortho or GeoGebra Graphing Calculator?

Iso2Ortho ships an update every 12 months, and GeoGebra Graphing Calculator monthly. Most recently, Iso2Ortho was updated on November 1, 2026 and GeoGebra Graphing Calculator on November 3, 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.*