# Perimeter vs Collections

The clearest difference is rating: Perimeter at 5.0 against Collections's 4.5. Perimeter also leads on iOS requirement (11.0 vs 15.0). Collections's advantage is update cadence (every 5 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Perimeter holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Perimeter ships an update every 3 weeks, Collections every 5 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Perimeter | Collections |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/perimeter-theft-deterrence/id1572482501/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/collections-archive-it-all/id1600656827/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | — | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | Free |
| Size | 54 MB | 8 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [PERIMETER AI INC.](https://appshunter.io/developer/1572482503) | [Nicolas Yuste Tirados](https://appshunter.io/developer/510006032) |

## What reviewers say

### Perimeter

[App page](https://appshunter.io/ios/app/perimeter-theft-deterrence/id1572482501)

This AI-powered security app detects potential threats before they occur. It uses unique lights and sounds to warn individuals and deter crime before it happens.

**Highlights:** AI threat detection, Proactive crime deterrence, Neighbor Safe™ lights, Audible warnings, Driveway monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Collections

[App page](https://appshunter.io/ios/app/collections-archive-it-all/id1600656827)

Easily manage and catalog your personal collections, from watches and stamps to coins and more. Save detailed information, pictures, and values for each item. Syncs across all your iOS devices via iCloud and offers a convenient dark mode.

**Highlights:** Catalog watches, stamps, coins, and more, Add pictures, descriptions, and values, Syncs across iOS devices with iCloud, Quick search functionality, Dark mode support

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

**In-app purchases:** none


## Frequently asked questions

### Is Perimeter free?

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

### Is Collections free?

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

### Which has better reviews, Perimeter or Collections?

Perimeter is rated higher. Perimeter averages 5.0 out of 5 from 2 ratings, while Collections averages 4.5 from 2 ratings.

### Do Perimeter or Collections have ads?

Neither Perimeter nor Collections shows ads.

### Which is updated more often, Perimeter or Collections?

Perimeter ships an update every 3 weeks, and Collections every 5 days. Most recently, Perimeter was updated on October 7, 2026 and Collections on October 24, 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.*