# Coordinate Geometry vs Pettson's Inventions 3

The clearest difference is update cadence: Pettson's Inventions 3 at every 2 months against Coordinate Geometry's every 27 months. Pettson's Inventions 3 also leads on device support (3 vs 1). Coordinate Geometry's advantage is price ($1.99 vs $4.99). On ads, in-app purchases and iOS requirement there is nothing between them.

Coordinate Geometry costs $1.99 and Pettson's Inventions 3 $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Coordinate Geometry ships an update every 27 months, Pettson's Inventions 3 every 2 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Coordinate Geometry | Pettson's Inventions 3 |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | — | **[4.8 (13 ratings)](https://appshunter.io/ios/app/pettsons-inventions-3/id1157967043/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 28 MB | 245 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Filimundus AB](https://appshunter.io/developer/468644481) |

## What reviewers say

### Coordinate Geometry

[App page](https://appshunter.io/ios/app/coordinate-geometry/id716633997)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pettson's Inventions 3

[App page](https://appshunter.io/ios/app/pettsons-inventions-3/id1157967043)

Explore a farm and complete 36 new inventions across six themed areas. Drag and drop items to solve physics-based puzzles and stimulate creativity. This app is designed for preschoolers to practice logic and creativity.

**Highlights:** 36 new inventions, 6 themed areas, Drag and drop puzzle mechanics, Physics-based challenges, Stimulates logic and creativity, Kid-friendly interface, Adjustable difficulty

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Coordinate Geometry free?

Coordinate Geometry costs $1.99, with no in-app purchases.

### Is Pettson's Inventions 3 free?

Pettson's Inventions 3 costs $4.99, with no in-app purchases.

### Do Coordinate Geometry or Pettson's Inventions 3 have ads?

Neither Coordinate Geometry nor Pettson's Inventions 3 shows ads.

### Which is updated more often, Coordinate Geometry or Pettson's Inventions 3?

Coordinate Geometry ships an update every 27 months, and Pettson's Inventions 3 every 2 months. Most recently, Coordinate Geometry was updated on October 5, 2026 and Pettson's Inventions 3 on October 13, 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.*