Greyline FT8
JONATHAN MARK SCHULMAN
Getting the latest details from the App Store…
Greyline FT8 is a highly portable, capable amateur radio app designed specifically for field operation with an iOS device. I designed this app because I got very used to my full-stack FT8 solution: GridTracker, WSJT-X, PSK Reporter, WRL Desktop, several browser tabs, and more. But I didn't want the bulk and weight of a full Windows PC in the field. At the same time, while there are excellent and lightweight FT8 iOS solutions out there, they were lacking features I really wanted. Greyline is…
Top of Paid · Utilities in United States. Greyline FT8 is #73 there. Changes are over 7 days.
How the app presents itself on the App Store. Select a screenshot to open it full size.
Version 1.4.8 · 28 Sep 2026 · 12 days ago
1.4.8 “The one that adds experimental Bluetooth support” 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: W5REZ - Suggesting Bluetooth support for the LiNKMP500 Features: - Experimental Bluetooth support. If you have a Bluetooth interface that offers a microphone via "hands-free" profile, Greyline will now try and use it. This only happens when no USB or wired interface is connected. Safety warning: Headphones like AirPods Pro also offer a microphone, so the app may pick them. Playing an FT8 signal over earbuds like that could present hearing danger. The app will pause the audio stream and warn you not to do this before transmitting over any Bluetooth device. Note: Bluetooth introduces latency into the data stream. We can’t avoid this, and it may cause you to miss calls or send ones that can’t be decoded. The hands-free profile is also optimized for telephone audio, which starts at about 500hz. Signals way at the bottom of the band you’re on may not be heard as a result. That’s it, that’s all, folks! Thanks for bringing me on your activations - now get out there and POTA on. 73!
Every chart this app is in right now, best position first.
Higher on the chart is better: #1 is at the top.
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| 7 days |
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| United States· Paid · Utilities | #73 | New entry | Change unknown | #73 | 2 |
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United States · Paid · Utilities: best #73, latest #73, over 7 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct, on 9 Oct, and on 10 Oct; the line joins the snapshots on either side.
Entries, big moves, #1s and new versions we've recorded.