Greyline FT8

Greyline FT8

Field-Ready Digital Ham Radio

15 ratings
12 reviews
#100 in paid Utilities
📚 Education
🔧 Utilities
$3.99

Details

Released
June 11, 2026
Updated
October 31, 2026

Features

Greyline FT8 screenshot #1 for iPhone
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Greyline FT8 screenshot #7 for iPhone
iphone
ipad
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About

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.

✓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
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What's New in Greyline FT8

1.6

October 31, 2026

“The one with major audio upgrades” IMPORTANT! If you use a Digirig or other external audio interface, make sure to enable the new "PTT tone on right channel" option in the Audio settings! Love Greyline? Stop by my Ko-Fi! https://ko-fi.com/kb0rb **NOTE** - The WRL logging API is a work in progress, and I will continue to improve the app as their API evolves! What we have here now takes full advantage of what the service currently supports. Stay tuned for more features! Be sure to check the release notes for prior versions to see what's new! I update the app regularly in response to feedback like yours. Read them at https://greylineft8.com/changelog.html Remember that Greyline now has a comprehensive user manual at https://greylineft8.com/userguide.html - you’ll also find a button in the Settings view to take you there Shoutouts: N1CDV - Reporting harmonic distortion on transmissions, significant audio waveform testing ON4LDZ - Also reporting harmonic issues Features: - Added a UDP log forwarding option. This works just like the WSJT-X UDP log forwarder - all you have to do is enter an IP address and port. If you’re accessing devices on the same network as your iOS device, you may be prompted with a Local Network permissions dialog. This is great for sending your logs to local UDP listeners like N1MM, the WRL desktop applications, GridTracker, and more. - PTT tone for supported analog-to-digital devices. USB devices like the Digirig Lite and Mobile will now trigger their PTT more reliably with this setting enabled. Note that if you switch between a radio that uses a Digirig and one that uses native VOX, you should consider disabling this option when not using the Digirig. Greyline uses a tone that will not impact your own FT8 transmissions, but may disrupt others on nearby frequencies if it goes out on the air. - Finer grained control over the Drive slider. On the Tuning screen, you’ll see new +/- buttons for 1dB adjustments. On the slider next to the waterfall, you can tap the gain number and adjust in 1dB increments. On the iPhone, we also now provide haptic feedback as you drag the slider to help you land more precisely Fixes: - A new low-pass Gaussian filter improves transmitted signal quality and reduces harmonics dramatically - FT8/FT4 signals are now only transmitted in left-channel mono, with the right channel reserved for the PTT tone. This dramatically improves signal clarity on transmission
- Changes to the drive level are now smoothed out and won’t send large jumps or pops if you adjust while transmitting - Moved the looked up name for callsigns to the second row in the Gatherer queue screen, to keep the view cleaner
- Fixed the “ACTIVE” badge wrapping to two lines in the Gatherer queue on iPhone - Corrected the status line when switching between automatic and fixed transmit frequencies - Fixed a minor sidebar jump that happened when switching between automatic and fixed TX frequencies That’s it, that’s all, folks! Thanks for bringing me on your activations - now get out there and POTA on. 73!

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Charts

Top Paid

📈 100+33

Utilities

This app rose +33 positions in Utilities chart.

Last updated on November 7, 2026.

User reviews

Makes It Easy!

Greyline FT8 is such a great app! It makes it really easy to make FT contacts with my iPad or iPhone. I use it with a Digirig Lite and my radio and it works flawlessly! Thanks for making this!

Response from developer

I’m so glad you like it! What radio do you use it with? If it’s not already listed on the site I’d love to add it! Feel free to email me if you have questions or suggestions or want a photo of your setup in the field featured on the site. 73 Jon KB0RB

Must Have App For iOS Hams

The perfect way to do FT8 from the field, especially when you need a few extra QSOs to wrap up a POTA activation. Really thoughtfully designed, I think it looks better than WSJT-X and is certainly more intuitive to use. I HIGHLY recommend reading through the documentation before launching it. The developer’s notes really set you up for success and it is worth the time to make sure your setup is squared away before you attempt to make contacts.

Also worth noting that the developer is super responsive to user questions. He replied almost immediately to some issues I was having and worked with me over several hours to get things squared away. He has also worked with Digirig to get a cable produced so the app works with the IC-705. Without a doubt the best interaction I’ve had with an app developer.
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Response from developer

Hey alright! I’m glad you found the user manual helpful and always enjoy helping folks get any issues figured out and back on the air. The less time you spend fighting the technology, the more time you have to play radio. And that time is precious! Keep on activating and sending feedback my way. 73 😀🫡

Easy plug and play setup with Digrig and KX3, G90

I downloaded this to my iPad and did the connection with a Digirig Lite and a KX3 and immediately was able to decode and then make a QSO. Got a new iPhone 17 and was able to make QSOs with s G90 and Digirig combination without any adjustments. Integration with QRZ was easy. Can’t wait to use this for a POTA activation!
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Response from developer

Yay! I’m so glad it was simple for you and the KX3 is a choice rig. I built this with my own KX2 in mind but it works for everyone ❤️ Keep on activating and be sure to drop me a line if you ever have suggestions or questions. 73 KB0RB

OUTSTANDING!!!

Started this program as a lightweight alternative to other FT8/FT4 programs. Using this App with the QMX and iPhone reduces weight astronomically, allowing for both POTA and SOTA. It functions extremely well, and the Hunter/Gatherer modes are a total hoot. This is so far, the best App for the aforementioned digital modes I’ve encountered so far. Kudos to Jon for creating this gem!
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Response from developer

I’m so glad you’re enjoying! The iPhone is how I always imagined the app being used so it makes me really happy you’re getting out there with a pocket station. Not that I don’t love my iPads too. Keep hunting and hope to catch you down the log! 73 KB0RB

Absolutely Fantastic App!

Kudos to the developer, this is a POTA game changer having the ability to use my iPad for FT8 vs lugging a laptop around. Incredibly easy setup, I was up and running in minutes, no configurations, just a few settings and you’re on the air! Thanks for all your hard work on this.

Response from developer

Hey thanks for the note! Glad you’re enjoying and keep watching the updates for even more POTA goodness!

Developer apps

FAQ

What is Greyline FT8?

Greyline FT8 is a mobile application designed for amateur radio operators to use FT8 and other digital modes in the field. It aims to provide a comprehensive yet portable solution, integrating features typically found in desktop software.

How much does Greyline FT8 cost?

Greyline FT8 is a paid application, priced at $3.99. This one-time purchase grants access to all its features.

What devices does Greyline FT8 support?

Greyline FT8 is compatible with iOS devices, specifically iPhones and iPads. It is designed for portability and ease of use on these platforms.

Does Greyline FT8 have ads?

No, Greyline FT8 does not contain advertisements. As a paid application, it offers an ad-free experience for its users.

How often is Greyline FT8 updated?

The latest version of Greyline FT8 is 1.0.6, last updated on June 29, 2026. While specific update frequency isn't detailed, the developer is open to feedback, suggesting ongoing support.

What is the age rating for Greyline FT8?

Greyline FT8 has an age rating of 4+. This indicates it is suitable for users of all ages, with no content restrictions.

How does Greyline FT8 handle logging?

Greyline FT8 supports direct-to-QRZ logging and ADI export. It also features intelligent log recovery, allowing users to log contacts even if the final message was missed.

What are the automated calling modes in Greyline FT8?

Greyline FT8 offers 'Gatherer' mode, which calls CQ and responds to the first reply, and 'Hunter' mode, which listens for CQ calls and initiates contact. Standard mode allows for manual control.