# Echo vs ZuckOff

The clearest difference is rating: Echo at 4.9 against ZuckOff's 4.1. Echo also leads on review sentiment (100% vs 60%) and monetization model (free vs freemium). ZuckOff's advantage is update cadence (every 3 days vs every 9 days). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Echo sells 2 in-app purchases, starting at $4.99 per month and ZuckOff sells 2 in-app purchases, starting at $14.99 per year. Whichever you choose, the download price is not the number that matters.

Echo holds the better App Store score, 4.9 against 4.1. Both are backed by a comparable volume of ratings — 36 and 19 respectively. Written reviews point the same way: 100% of Echo's written reviews are positive against 60% of ZuckOff's.

Echo ships an update every 9 days, ZuckOff every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Echo | ZuckOff |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (36 ratings)](https://appshunter.io/ios/app/echo-global-sdr-receiver/id6759174390/reviews)** | [4.1 (19 ratings)](https://appshunter.io/ios/app/zuckoff/id6795234035/reviews) |
| Number of ratings | **36** | 19 |
| Positive reviews | **100.0% of reviews** | 60.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 21 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Mark Garrison Jr.](https://appshunter.io/developer/1877165041) | [Pawel Szydlowski](https://appshunter.io/developer/1223387615) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-global-sdr-receiver/id6759174390)

Tune into thousands of remote radio servers worldwide from your iPhone or iPad. Explore shortwave broadcasts, aviation communications, and more with a global interactive map and advanced tuning features. Enjoy uninterrupted background audio and a privacy-first experience.

**Highlights:** Global interactive map and search, Support for multiple SDR architectures, Scanner mode and OpenMHz archives, Pro-level tuning and analytics, Offline frequency library and logging, Uninterrupted background audio, Privacy-first design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Pro Monthly | $4.99 | per month |
| Echo Pro Annual | $39.99 | per year |


### ZuckOff

[App page](https://appshunter.io/ios/app/zuckoff/id6795234035)

This app detects and alerts you to the presence of nearby camera glasses and headsets via Bluetooth. It provides details on detected devices, signal strength, and a history of sightings, all while keeping your data private on your device.

**Highlights:** Detects camera glasses and headsets, Bluetooth announcement listening, Manufacturer and device recognition, Confidence rating for detections, Detailed sighting logs, Signal strength for proximity, Privacy-focused, no data sharing

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zuckoff Pro | $14.99 | per year |
| Zuckoff Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Echo free?

Echo is free to download, with in-app purchases available.

### Is ZuckOff free?

ZuckOff is free to download, with in-app purchases available.

### Which has better reviews, Echo or ZuckOff?

Echo is rated higher. Echo averages 4.9 out of 5 from 36 ratings, while ZuckOff averages 4.1 from 19 ratings.

### Do Echo or ZuckOff have ads?

Neither Echo nor ZuckOff shows ads.

### Which is updated more often, Echo or ZuckOff?

Echo ships an update every 9 days, and ZuckOff every 3 days. Most recently, Echo was updated on October 31, 2026 and ZuckOff on October 31, 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.*