# SDR vs Greyline FT8

The clearest difference is price: Greyline FT8 at $3.99 against SDR's $44.99. Greyline FT8 also leads on rating (4.9 vs 4.6) and update cadence (every 4 days vs every 2 weeks). SDR's advantage is ratings volume (72 vs 15) and iOS requirement (17.6 vs 26.5). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

SDR costs $44.99 and Greyline FT8 $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Greyline FT8 holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 72 and 15 respectively. Written reviews point the same way: 84% of SDR's written reviews are positive against 92% of Greyline FT8's.

SDR ships an update every 2 weeks, Greyline FT8 every 4 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SDR | Greyline FT8 |
| --- | --- | --- |
| Price | $44.99 | **$3.99** |
| Rating | [4.6 (72 ratings)](https://appshunter.io/ios/app/sdr-control-mobile/id1673327509/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/greyline-ft8/id6773455172/reviews)** |
| Number of ratings | **72** | 15 |
| Positive reviews | 84.3% of reviews | **91.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Paid | Paid |
| Size | 55 MB | 18 MB |
| Requires iOS | **17.6** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Roskosch](https://appshunter.io/developer/334053438) | [JONATHAN MARK SCHULMAN](https://appshunter.io/developer/6773455174) |

## What reviewers say

### SDR

[App page](https://appshunter.io/ios/app/sdr-control-mobile/id1673327509)

Control your Icom radio remotely from your iPhone. View spectrum scope, waterfall, and access all radio controls over Wi-Fi or the internet. Supports various Icom models and includes features for ham radio operators.

**Highlights:** Spectrum scope and waterfall display, Full radio control, Remote operation over Wi-Fi/internet, FT8-Improved and JS8 modes, CW decoder and keyer, Speech transcription and translation, Logbook with ADIF import/export

**Features:** iPhone Duo support

**In-app purchases:** none

**What reviewers like**

- 🚀 Works perfectly with ICOM radios
- 👍 Intuitive and easy to use
- 🌟 Feature-rich and comprehensive
- 💯 Stable and reliable performance
- 📱 Great for remote operation

**What reviewers complain about**

- 🐛 FT8 decoding issues (lower signal levels)
- 🐛 Dialogs do not scale with larger text setting
- 🐛 UI elements can be cramped on iPhone
- 🐛 Some buttons are small and hard to press
- 🐛 Frequency display overlaps buttons

**Reported bugs**

- Dialogs do not scale with larger text setting
- Frequency display overlaps buttons
- FT8 decoding issues (lower signal levels than WSJTX)
- App crashes and leaves radio in transmit
- Logbook export not functional after update

**Requested features**

- Develop for IC-7800
- CarPlay support
- Apple Watch add-on
- Windows version
- JS8call support


### Greyline FT8

[App page](https://appshunter.io/ios/app/greyline-ft8/id6773455172)

This app provides a portable digital ham radio experience for field operations on iOS devices. It automates callsign lookups, displays real-time spot data, and offers automated calling or manual control for QSOs. Features include intelligent frequency selection, audio delay adjustment, and direct logging to QRZ.

**Highlights:** Field-ready digital ham radio, Automated callsign and DXCC lookups, Real-time PSK Reporter spot data, Automated CQ Gatherer and Hunter modes, Intelligent automatic frequency selection, Direct-to-QRZ logging and ADI export

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SDR free?

SDR costs $44.99, with no in-app purchases.

### Is Greyline FT8 free?

Greyline FT8 costs $3.99, with no in-app purchases.

### Which has better reviews, SDR or Greyline FT8?

Greyline FT8 is rated higher. SDR averages 4.6 out of 5 from 72 ratings, while Greyline FT8 averages 4.9 from 15 ratings.

### Do SDR or Greyline FT8 have ads?

Neither SDR nor Greyline FT8 shows ads.

### Which is updated more often, SDR or Greyline FT8?

SDR ships an update every 2 weeks, and Greyline FT8 every 4 days. Most recently, SDR was updated on November 3, 2026 and Greyline FT8 on November 5, 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.*