# PolyAlerte vs COTR SAFE

The clearest difference is update cadence: COTR SAFE at every 2 months against PolyAlerte's every 39 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PolyAlerte ships an update every 39 months, COTR SAFE every 2 months. The most recent releases landed on June 25, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | PolyAlerte | COTR SAFE |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 29 MB | 29 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Corporation de l'Ecole Polytechnique de Montreal](https://appshunter.io/developer/1488647545) | [College of the Rockies](https://appshunter.io/developer/1839359004) |

## What reviewers say

### PolyAlerte

[App page](https://appshunter.io/ios/app/polyalerte/id1488647546)

This official campus safety app provides students, faculty, and staff with essential safety alerts and direct access to security resources. Features include emergency contacts, location sharing for friends, reporting suspicious activity, and offline access to emergency procedures and campus maps.

**Highlights:** Emergency Contacts, Friend Walk location sharing, Report suspicious activity, Campus and building maps, Offline emergency procedures, Safety notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### COTR SAFE

[App page](https://appshunter.io/ios/app/cotr-safe/id6752449657)

**In-app purchases:** none


## Frequently asked questions

### Is PolyAlerte free?

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

### Is COTR SAFE free?

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

### Do PolyAlerte or COTR SAFE have ads?

Neither PolyAlerte nor COTR SAFE shows ads.

### Which is updated more often, PolyAlerte or COTR SAFE?

PolyAlerte ships an update every 39 months, and COTR SAFE every 2 months. Most recently, PolyAlerte was updated on June 25, 2026 and COTR SAFE on September 10, 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.*