# Cartesian graph coordinates vs Pi Masters

The clearest difference is in-app purchases: Pi Masters at none against Cartesian graph coordinates's 1. Cartesian graph coordinates's advantage is update cadence (every 4 days vs every 3 months) and iOS requirement (12.0 vs 17.5). On price, ads and device support there is nothing between them.

Both are free to download. Cartesian graph coordinates sells 1 one-off in-app purchase. Pi Masters asks for nothing beyond the download.

Cartesian graph coordinates ships an update every 4 days, Pi Masters every 3 months. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Cartesian graph coordinates | Pi Masters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cartesian-graph-coordinates/id6449740813/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 months |
| Monetization | Free | — |
| Size | 161 MB | 2 MB |
| Requires iOS | **12.0** | 17.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Five Systems Development](https://appshunter.io/developer/1063221985) | [Dave Poirier](https://appshunter.io/developer/757241910) |

## What reviewers say

### Cartesian graph coordinates

[App page](https://appshunter.io/ios/app/cartesian-graph-coordinates/id6449740813)

This math-based game teaches children basic math and geometry skills by graphing points on a Cartesian plane to draw unique pictures. It offers an engaging way to learn about coordinates, axes, and problem-solving through art and logic.

**Highlights:** Graph points to draw pictures, Learn Cartesian plane basics, Solve math problems, Develop logical thinking, Three difficulty levels, Hundreds of exercises

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove AD | $0.99 | one-time |


### Pi Masters

[App page](https://appshunter.io/ios/app/pi-masters/id6504531645)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cartesian graph coordinates free?

Cartesian graph coordinates is free to download, with in-app purchases available.

### Is Pi Masters free?

Pi Masters is free to download, with no in-app purchases.

### Do Cartesian graph coordinates or Pi Masters have ads?

Neither Cartesian graph coordinates nor Pi Masters shows ads.

### Which is updated more often, Cartesian graph coordinates or Pi Masters?

Cartesian graph coordinates ships an update every 4 days, and Pi Masters every 3 months. Most recently, Cartesian graph coordinates was updated on September 17, 2026 and Pi Masters on September 23, 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.*