# SDR vs VFLEX App

The clearest difference is price: VFLEX App at Free against SDR's $49.99. VFLEX App also leads on rating (5.0 vs 4.2) and device support (3 vs 1). SDR's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (67 vs 2). On ads and in-app purchases there is nothing between them.

VFLEX App is free to download; SDR costs $49.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VFLEX App holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: SDR has 67 ratings behind it against 2, so its average is the more settled of the two.

SDR ships an update every 2 weeks, VFLEX App every 3 months. Both last shipped on October 14, 2026.

## The numbers

| Metric | SDR | VFLEX App |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | [4.2 (67 ratings)](https://appshunter.io/ios/app/sdr-control-for-icom/id1614141094/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/vflex-app/id6753985671/reviews)** |
| Number of ratings | **67** | 2 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 months |
| Monetization | Paid | **Free** |
| Size | 47 MB | 47 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Roskosch](https://appshunter.io/developer/334053438) | [Tundra Labs](https://appshunter.io/developer/1846127411) |

## What reviewers say

### SDR

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

Control compatible Icom transceivers remotely or locally from your iPad. Offers full operation, dual VFO, a logbook, and integrated digital modes like FT8/FT4, SSTV, and CW decoding.

**Highlights:** Remote transceiver operation, Dual VFO and DualWatch, Integrated logbook with ADIF support, FT8/FT4, SSTV, and CW decoder tools, DX-Cluster integration, Call sign lookup and map display

**In-app purchases:** none


### VFLEX App

[App page](https://appshunter.io/ios/app/vflex-app/id6753985671)

This application connects to a specific hardware product to allow users to configure various settings. It serves as a digital interface for a patented power supply system.

**Highlights:** Connect to VFLEX hardware, Configure power supply parameters, Patent-pending hardware integration, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SDR free?

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

### Is VFLEX App free?

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

### Which has better reviews, SDR or VFLEX App?

VFLEX App is rated higher. SDR averages 4.2 out of 5 from 67 ratings, while VFLEX App averages 5.0 from 2 ratings.

### Do SDR or VFLEX App have ads?

Neither SDR nor VFLEX App shows ads.

### Which is updated more often, SDR or VFLEX App?

SDR ships an update every 2 weeks, and VFLEX App every 3 months. Most recently, SDR was updated on October 14, 2026 and VFLEX App on October 14, 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.*