# CATALYST E vs OGS Campus

The clearest difference is in-app purchases: OGS Campus at none against CATALYST E's 1. CATALYST E's advantage is iOS requirement (12.4 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. CATALYST E sells 1 one-off in-app purchase. OGS Campus asks for nothing beyond the download.

## The numbers

| Metric | CATALYST E | OGS Campus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Size | 152 MB | 67 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shafeer Kallerikattil](https://appshunter.io/developer/1738613977) | [OWN GUIDE SYSTEM LLP](https://appshunter.io/developer/6811472544) |

## What reviewers say

### CATALYST E

[App page](https://appshunter.io/ios/app/catalyst-e-learning-app/id6480279711)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| INDIAN AND FOREIGN ACCOUNTING | $179.99 | one-time |


### OGS Campus

[App page](https://appshunter.io/ios/app/ogs-campus/id6811472542)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CATALYST E free?

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

### Is OGS Campus free?

OGS Campus is free to download, with no in-app purchases.

### Do CATALYST E or OGS Campus have ads?

Neither CATALYST E nor OGS Campus shows ads.

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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.*