# Radar Performance vs Perimeter

The clearest difference is update cadence: Perimeter at every 3 weeks against Radar Performance's every 2 months. Perimeter also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 16.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Radar Performance against 5.0 for Perimeter. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Radar Performance ships an update every 2 months, Perimeter every 3 weeks. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Radar Performance | Perimeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/radar-performance/id1502792151/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/perimeter-theft-deterrence/id1572482501/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | **Free** |
| Size | 8 MB | 54 MB |
| Requires iOS | 16.0 | **11.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [PERIMETER AI INC.](https://appshunter.io/developer/1572482503) |

## What reviewers say

### Radar Performance

[App page](https://appshunter.io/ios/app/radar-performance/id1502792151)

This application calculates the geometry of aircraft weather radar beams relative to Earth, the freezing level, and the "bright band" for optimal weather detection. It identifies areas on the radar display where the beam is too high or low for effective weather detection and highlights potential ground returns.

**Highlights:** Calculates weather radar beam geometry, Considers Earth and freezing level, Identifies optimal detection altitudes, Shows areas of ineffective beam coverage, Highlights potential ground returns, Supports various radar models

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Radar Performance free?

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

### Is Perimeter free?

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

### Which has better reviews, Radar Performance or Perimeter?

Radar Performance and Perimeter are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Radar Performance or Perimeter have ads?

Neither Radar Performance nor Perimeter shows ads.

### Which is updated more often, Radar Performance or Perimeter?

Radar Performance ships an update every 2 months, and Perimeter every 3 weeks. Most recently, Radar Performance was updated on October 12, 2026 and Perimeter on October 7, 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.*