# Phobias Guide.. vs Computer Science & Engineering

The clearest difference is in-app purchases: Computer Science & Engineering at none against Phobias Guide..'s 2. Computer Science & Engineering also leads on ads (none vs shown). Phobias Guide..'s advantage is iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Phobias Guide.. sells 2 in-app purchases, starting at $1.99 per month. Computer Science & Engineering asks for nothing beyond the download.

## The numbers

| Metric | Phobias Guide.. | Computer Science & Engineering |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | — |
| Size | 156 MB | 72 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Olga Ivanova](https://appshunter.io/developer/1733570435) | [Shekh Ehsanur Rahman](https://appshunter.io/developer/1892682672) |

## What reviewers say

### Phobias Guide..

[App page](https://appshunter.io/ios/app/phobias-guide/id6742685294)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| phobias_by_oliva_subscription | $1.99 | per month |
| phobias_by_oliva_donation | $1.99 | one-time |


### Computer Science & Engineering

[App page](https://appshunter.io/ios/app/computer-science-and-engineering/id6790156339)

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

**In-app purchases:** none


## Frequently asked questions

### Is Phobias Guide.. free?

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

### Is Computer Science & Engineering free?

Computer Science & Engineering is free to download, with no in-app purchases.

### Do Phobias Guide.. or Computer Science & Engineering have ads?

Phobias Guide.. shows ads; Computer Science & Engineering 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.*