# Echo vs SpireMonitor

The clearest difference is in-app purchases: Echo at none against SpireMonitor's 2. SpireMonitor's advantage is update cadence (every 2 days vs every 9 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SpireMonitor sells 2 in-app purchases, starting at $4.99 per month. Echo asks for nothing beyond the download.

Echo ships an update every 9 days, SpireMonitor every 2 days. The most recent releases landed on September 25, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Echo | SpireMonitor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (32 ratings)](https://appshunter.io/ios/app/echo-global-sdr-receiver/id6759174390/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free | — |
| Size | 11 MB | 7 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mark Garrison Jr.](https://appshunter.io/developer/1877165041) | [Riyad Anabtawi](https://appshunter.io/developer/1537641230) |

## 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:** none


### SpireMonitor

[App page](https://appshunter.io/ios/app/spiremonitor/id6760571994)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spire Pro Monthly | $4.99 | per month |
| Spire Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is Echo free?

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

### Is SpireMonitor free?

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

### Do Echo or SpireMonitor have ads?

Neither Echo nor SpireMonitor shows ads.

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

Echo ships an update every 9 days, and SpireMonitor every 2 days. Most recently, Echo was updated on September 25, 2026 and SpireMonitor on September 13, 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.*