# SDR vs SmartMTR for FlexRadio

The clearest difference is price: SmartMTR for FlexRadio at Free against SDR's $49.99. SmartMTR for FlexRadio also leads on review sentiment (100% vs 78%) and device support (3 vs 1). SDR's advantage is in-app purchases (none vs 1) and ratings volume (78 vs 1). On ads there is nothing between them.

SmartMTR for FlexRadio is free to download; SDR costs $49.99 up front. SmartMTR for FlexRadio sells 1 in-app purchase, starting at $2.99 per month. SDR asks for nothing beyond the download.

SDR holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: SDR has 78 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 78% of SDR's written reviews are positive against 100% of SmartMTR for FlexRadio's, so the app with the better star average is not the one people write more warmly about.

SDR ships an update every 2 weeks, SmartMTR for FlexRadio every 5 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SDR | SmartMTR for FlexRadio |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | **[4.3 (78 ratings)](https://appshunter.io/ios/app/sdr-control-for-icom/id1614141094/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/smartmtr-for-flexradio/id6758765008/reviews) |
| Number of ratings | **78** | 1 |
| Positive reviews | 78.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 55 MB | 3 MB |
| Requires iOS | **17.6** | 26.2 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Roskosch](https://appshunter.io/developer/334053438) | [Dariusz Socha](https://appshunter.io/developer/1084171708) |

## What reviewers say

### SDR

[App page](https://appshunter.io/ios/app/sdr-control-for-icom/id1614141094)

Control your Icom radio remotely from your iPad, whether at home via Wi-Fi or anywhere over the internet. View spectrum scope, waterfall, and access all radio controls, including microphone and speaker functionality. Supports various Icom models and offers multiple communication modes.

**Highlights:** Remote Wi-Fi and internet control, Spectrum scope and waterfall display, Full radio control interface, iPad as microphone and speaker, Multiple communication modes (FT8, JS8, CW, Speech), Integrated logbook with iCloud sync, DX Cluster and band plan integration

**Features:** Vision Pro support

**In-app purchases:** none


### SmartMTR for FlexRadio

[App page](https://appshunter.io/ios/app/smartmtr-for-flexradio/id6758765008)

Transform your iOS device into a precise S-meter and control panel for FlexRadio transceivers. Monitor signal levels, adjust DSP filters, and control radio functions with intuitive gestures. Includes a demo mode for exploration.

**Highlights:** Precision S-meter with arc-band indicator, Dual-slice display for simultaneous monitoring, TX meters for RF Power, SWR, and Compression, Intuitive swipe gestures for radio control, Comprehensive DSP filter adjustments, Demo mode for exploration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SmartMTR | $2.99 | per month |


## Frequently asked questions

### Is SDR free?

SDR costs $49.99, with no in-app purchases.

### Is SmartMTR for FlexRadio free?

SmartMTR for FlexRadio is free to download, with in-app purchases available.

### Which has better reviews, SDR or SmartMTR for FlexRadio?

SDR is rated higher. SDR averages 4.3 out of 5 from 78 ratings, while SmartMTR for FlexRadio averages 4.0 from 1 ratings.

### Do SDR or SmartMTR for FlexRadio have ads?

Neither SDR nor SmartMTR for FlexRadio shows ads.

### Which is updated more often, SDR or SmartMTR for FlexRadio?

SDR ships an update every 2 weeks, and SmartMTR for FlexRadio every 5 weeks. Most recently, SDR was updated on November 7, 2026 and SmartMTR for FlexRadio 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.*