PSKer vs Greyline FT8
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PSKer
This application functions as a PSK31 receiver and transmitter for amateur radio enthusiasts. It offers features like automatic frequency locking, configurable macros for quick messaging, and a real-time sonogram with zoom.
- PSK31 send/receive
- Universal app
- Configurable macros
- Automatic frequency locking
- Realtime sonogram w/zoom
- Mic/line-in receive, speaker/line-out transmit
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PSKer is a PSK31 receiver and transmitter. Features: * PSK31 send/receive * Universal app * Landscape mode on the iPad, Portrait mode on the iPhone/iPad * Configurable macros for common messages (CQ, ...) * Automatic frequency locking * Realtime sonogram w/zoom view * Support for mic and line-in receive, and speaker-out/line-out transmission. Note the desktop version is free and can be downloaded at http://ke7sch.net/psker/PSKer.zip You can run the iOS version on your desktop too if you like.
Greyline FT8
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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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, WRL and private Cloudlog 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!) - Log import and export - Antenna tuning - POTA Autospotting - One touch POTA activation and POTA.app-compatible ADIF export - Multiple POTA activation support - And so much more! Greyline uses audio VOX and not serial PTT. Most radios support this with simple cabling or an audio interface like a 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. Want to share your own Field Notes (https://greylineft8.com/fieldnotes.html)? Email me at support@greylineft8.com!
Screenshots
Verdict
The clearest difference is rating: Greyline FT8 at 4.8 against PSKer's 1.8. Greyline FT8 also leads on review sentiment (90% vs 55%) and update cadence (every 4 days vs every 31 months). PSKer's advantage is price ($2.99 vs $3.99) and iOS requirement (17.0 vs 26.5). On ratings volume, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PSKer costs $2.99 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, 4.8 against 1.8. Both are backed by a comparable volume of ratings — 22 and 13 respectively. Written reviews point the same way: 55% of PSKer's written reviews are positive against 90% of Greyline FT8's.
PSKer ships an update every 31 months, Greyline FT8 every 4 days. The most recent releases landed on October 17, 2026 and October 20, 2026 respectively.
| Parameter | PSKer | Greyline FT8 |
|---|---|---|
| Price | $2.99 — better | $3.99 |
| Rating | 1.8 (22 ratings) | 4.8 (13 ratings) — better |
| Positive reviews | 55.0% of reviews | 90.0% of reviews — better |
| Number of ratings | 22 — better | 13 |
| Update frequency | Every 31 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #134 — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 1 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Oskin | JONATHAN MARK SCHULMAN |
Customer experience
PSKer
Greyline FT8
In-app purchases
PSKer
No in-app purchases
Greyline FT8
No in-app purchases









