Greyline FT8

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 everything you need and nothing you don't. It automatically locates your grid square, performs callsign and calling station DXCC lookups (internet access required), and can even show you real-time spot data from PSK Reporter. Want to adjust your directional antenna? Now you've got the info you need to do it! Greyline also incorporates automated calling features. Gatherer mode calls CQ, responds to the first reply it gets, finishes the QSO and returns to calling CQ all without your input. On the other side of things, Hunter mode listens for CQ calls and pounces on them, finishing a QSO then returning to the live band to find the next. Or, take control of the conversation yourself with standard mode. That's the experience you're already used to from WSJT-X and other digital mode apps. Some other noteworthy features are: - Intelligent automatic free frequency selection - Dynamically adjusted audio delay for virtually drift-free message timing - PSK Reporter integrated Live Spots - Direct-to-QRZ logging and ADI export - Configurable waterfall settings - CQ addendums - CQ filtering for contesting and general courteous operation - Configurable retransmissions - Intelligent log recovery (didn't get that last 73 but want to log the contact anyway? Now you can!) - And so much more! Greyline uses audio VOX and not serial PTT. Most radios support this with simple cabling or an audio interface like Digirig. For helpful tips on cabling and configuring popular radios, visit the Support URL below. Built by a ham, for hams, I'm very open to your feedback and hope Greyline can be your field companion.

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. Shoutouts: K0JGL - Reporting grid square lookup issues, confirming HF Pebble support IW2EYN - Suggesting log import functionality Fixes: - Grid squares were occasionally returning partially correct lookup results, due to an “alphabetically first wins” algorithm where multiple states, provinces or countries were in a single grid. Now we show everyone, no favoritism here! - When you highlight a log row, we now use much more readable and high-contrast colors Features: - Added the ability to import ADI formatted log files. Imported log entries will help you know who you’ve worked before. Note that imported log entries CAN be exported to a new ADI file, but can NOT be uploaded to QRZ. This is intentional, to prevent conflicts and duplication. Thanks and 73 to everyone for the feedback and bringing me along on your activations!

Developer

JONATHAN MARK SCHULMAN

Main Category

Utilities

Version

1.0.8

Version Release

2026-07-18

Initial Release

2026-06-11

Size

15 MB

Age Rating

4+

Price

USD 3.99

Languages

EN

Bundle ID

com.kb0rb.Greyline

Version Rating

★ 4.75 (4)

First Seen

2026-06-12

Metadata updated 2026-07-19

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