# Hidden Device Radar vs Holler

The clearest difference is in-app purchases: Holler at none against Hidden Device Radar's 1. Hidden Device Radar's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Hidden Device Radar sells 1 one-off in-app purchase. Holler asks for nothing beyond the download.

Hidden Device Radar ships an update every 2 weeks, Holler every 2 months. The most recent releases landed on October 24, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Hidden Device Radar | Holler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/hidden-device-radar/id6760244313/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 1 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aurem Digital llc](https://appshunter.io/developer/1882003730) | [Junior Brito](https://appshunter.io/developer/1868101316) |

## What reviewers say

### Hidden Device Radar

[App page](https://appshunter.io/ios/app/hidden-device-radar/id6760244313)

Detect hidden cameras, trackers, and smart devices using Bluetooth, Wi-Fi, and NFC signals. Get real-time threat scoring and a proximity graph to locate suspicious devices. Protect your privacy by scanning hotel rooms, rentals, or your home.

**Highlights:** Bluetooth device detection, Wi-Fi/local network scanning, Real-time threat scoring, Signal Strength Finder (Pro), Detection history, On-device processing

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hidden Device Radar | $4.99 | one-time |


### Holler

[App page](https://appshunter.io/ios/app/holler-home-intercom/id6782910776)

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

**In-app purchases:** none


## Frequently asked questions

### Is Hidden Device Radar free?

Hidden Device Radar is free to download, with in-app purchases available.

### Is Holler free?

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

### Do Hidden Device Radar or Holler have ads?

Neither Hidden Device Radar nor Holler shows ads.

### Which is updated more often, Hidden Device Radar or Holler?

Hidden Device Radar ships an update every 2 weeks, and Holler every 2 months. Most recently, Hidden Device Radar was updated on October 24, 2026 and Holler on October 17, 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.*