# SFU Safe vs NPPE Prep

The clearest difference is in-app purchases: SFU Safe at none against NPPE Prep's 1. SFU Safe also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.6). On price and ads there is nothing between them.

Both are free to download. NPPE Prep sells 1 one-off in-app purchase. SFU Safe asks for nothing beyond the download.

## The numbers

| Metric | SFU Safe | NPPE Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 28 MB | 3 MB |
| Requires iOS | **13.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Simon Fraser University](https://appshunter.io/developer/359025237) | [Tongkun Lan](https://appshunter.io/developer/1870124868) |

## What reviewers say

### SFU Safe

[App page](https://appshunter.io/ios/app/sfu-safe/id6602884307)

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

**In-app purchases:** none


### NPPE Prep

[App page](https://appshunter.io/ios/app/nppe-prep/id6757991040)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Plan | $6.99 | one-time |


## Frequently asked questions

### Is SFU Safe free?

SFU Safe is free to download, with no in-app purchases.

### Is NPPE Prep free?

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

### Do SFU Safe or NPPE Prep have ads?

Neither SFU Safe nor NPPE Prep 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.*