# Erigworld vs Pie Matrix

The clearest difference is in-app purchases: Pie Matrix at none against Erigworld's 7. Erigworld's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Erigworld sells 7 one-off in-app purchases. Pie Matrix asks for nothing beyond the download.

## The numbers

| Metric | Erigworld | Pie Matrix |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 5 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 265 MB | 102 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Ajay Verma](https://appshunter.io/developer/1641857508) | [Pie Matrix Innovations Private Limited](https://appshunter.io/developer/6775562989) |

## What reviewers say

### Erigworld

[App page](https://appshunter.io/ios/app/erigworld/id1641857506)

This virtual platform offers innovative teaching techniques to build a strong foundation for aspiring candidates. It serves as an e-learning hub, saving users time by providing direct access to educational resources.

**Highlights:** Virtual e-learning platform, Skill upgrading, Innovative teaching techniques, Strong foundation building, Time-saving resource access

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Course Tier 4 | $3.99 | one-time |
| Course Tier 12 | $11.99 | one-time |
| Course Tier 13 | $12.99 | one-time |
| Course Tier 27 | $26.99 | one-time |
| Course Tier 34 | $33.99 | one-time |
| Course Tier 51 | $54.99 | one-time |
| Mastering IWCFWell Control In | $119.99 | one-time |


### Pie Matrix

[App page](https://appshunter.io/ios/app/pie-matrix-sky-map/id6775562987)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Erigworld free?

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

### Is Pie Matrix free?

Pie Matrix is free to download, with no in-app purchases.

### Do Erigworld or Pie Matrix have ads?

Pie Matrix shows ads; Erigworld does not.

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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.*