# CATALYST E vs ZMark Academy

The clearest difference is in-app purchases: ZMark Academy at none against CATALYST E's 1. CATALYST E's advantage is iOS requirement (12.4 vs 16.0). 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. ZMark Academy asks for nothing beyond the download.

## The numbers

| Metric | CATALYST E | ZMark Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Size | 152 MB | 22 MB |
| Requires iOS | **12.4** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shafeer Kallerikattil](https://appshunter.io/developer/1738613977) | [Techhand Innovations](https://appshunter.io/developer/1749585320) |

## 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 |


### ZMark Academy

[App page](https://appshunter.io/ios/app/zmark-academy/id6529547920)

**In-app purchases:** none


## Frequently asked questions

### Is CATALYST E free?

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

### Is ZMark Academy free?

ZMark Academy is free to download, with no in-app purchases.

### Do CATALYST E or ZMark Academy have ads?

Neither CATALYST E nor ZMark Academy 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.*