# Echo vs EVTV Controller

The clearest difference is in-app purchases: EVTV Controller at none against Echo's 2. EVTV Controller also leads on iOS requirement (15.1 vs 17.0). Echo's advantage is ratings volume (36 vs 1). On price, rating, ads and monetization model there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Echo against 5.0 for EVTV Controller. That said, the two scores are not equally well evidenced: Echo has 36 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Echo | EVTV Controller |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (36 ratings)](https://appshunter.io/ios/app/echo-global-sdr-receiver/id6759174390/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/evtv-controller/id6760682067/reviews)** |
| Number of ratings | **36** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Monetization | Free | Free |
| Size | 12 MB | 14 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mark Garrison Jr.](https://appshunter.io/developer/1877165041) | [EVTV Motor Verks](https://appshunter.io/developer/1885709131) |

## 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 |


### EVTV Controller

[App page](https://appshunter.io/ios/app/evtv-controller/id6760682067)

Monitor, diagnose, and manage your EVTV Battery Module Controller in real-time. View pack status, cell health, energy statistics, and perform advanced diagnostics. Requires an EVTV battery controller with WiFi and a compatible Tesla battery pack.

**Highlights:** Real-time pack status monitoring, Individual cell voltage mapping, Energy statistics and cycle estimation, Advanced diagnostics console, State of charge, voltage, and current tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo free?

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

### Is EVTV Controller free?

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

### Which has better reviews, Echo or EVTV Controller?

EVTV Controller is rated higher. Echo averages 4.9 out of 5 from 36 ratings, while EVTV Controller averages 5.0 from 1 ratings.

### Do Echo or EVTV Controller have ads?

Neither Echo nor EVTV Controller shows ads.

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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.*