# CampusGuard911 vs Yapp Sailing Course

The clearest difference is in-app purchases: CampusGuard911 at none against Yapp Sailing Course's 3. CampusGuard911 also leads on iOS requirement (12.0 vs 15.0). Yapp Sailing Course's advantage is update cadence (every 6 weeks vs every 6 months) and ratings volume (26 vs 4). On price, rating, ads and device support there is nothing between them.

Both are free to download. Yapp Sailing Course sells 3 in-app purchases, starting at $9.99 per month. CampusGuard911 asks for nothing beyond the download.

CampusGuard911 holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Yapp Sailing Course has 26 ratings behind it against 4, so its average is the more settled of the two.

CampusGuard911 ships an update every 6 months, Yapp Sailing Course every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CampusGuard911 | Yapp Sailing Course |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/campusguard911/id972097916/reviews)** | [4.8 (26 ratings)](https://appshunter.io/ios/app/yapp-sailing-course/id1576346097/reviews) |
| Number of ratings | 4 | **26** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 6 weeks** |
| Monetization | **Free** | Freemium |
| Size | 58 MB | 129 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guard911, LLC](https://appshunter.io/developer/862725594) | [Yapp LLC](https://appshunter.io/developer/1711993430) |

## What reviewers say

### CampusGuard911

[App page](https://appshunter.io/ios/app/campusguard911/id972097916)

This safety app provides a direct panic button for university faculty and staff during emergencies. It alerts local law enforcement and campus personnel, displaying the location of the incident. The app also notifies nearby protected locations.

**Highlights:** Mobile panic button, Alerts law enforcement, Campus-wide alerts, Location mapping, Notifies nearby locations, AT&T FirstNet listed

**In-app purchases:** none


### Yapp Sailing Course

[App page](https://appshunter.io/ios/app/yapp-sailing-course/id1576346097)

Learn the fundamentals of sailing with bite-sized, interactive lessons. This app provides a step-by-step guide for beginners, covering essential topics from boat parts to maneuvers and safety. Study at your own pace to build confidence for your first sailing experience.

**Highlights:** Bite-sized sailing lessons, Interactive activities and knowledge checks, AI-powered sailing assistant, Knot-tying guide & nautical glossary, Illustrated, beginner-friendly lessons, Learn sailboat parts and maneuvers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly access to all features | $9.99 | per month |
| 6 months access to Premium | $39.99 | per 6 months |
| Annual access to all features | $59.99 | per year |


## Frequently asked questions

### Is CampusGuard911 free?

CampusGuard911 is free to download, with no in-app purchases.

### Is Yapp Sailing Course free?

Yapp Sailing Course is free to download, with in-app purchases available.

### Which has better reviews, CampusGuard911 or Yapp Sailing Course?

CampusGuard911 is rated higher. CampusGuard911 averages 5.0 out of 5 from 4 ratings, while Yapp Sailing Course averages 4.8 from 26 ratings.

### Do CampusGuard911 or Yapp Sailing Course have ads?

Neither CampusGuard911 nor Yapp Sailing Course shows ads.

### Which is updated more often, CampusGuard911 or Yapp Sailing Course?

CampusGuard911 ships an update every 6 months, and Yapp Sailing Course every 6 weeks. Most recently, CampusGuard911 was updated on November 1, 2026 and Yapp Sailing Course on November 3, 2026.

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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.*