Greyline FT8 vs Wifi Rig CTRL
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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!
Wifi Rig CTRL
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WifiRigCTRL is a controller app that lets you remotely operate an amateur (ham) radio transceiver from your iPhone or iPad over Wi-Fi. Two ways to connect: 1. Via Raspberry Pi (Hamlib/FastAPI) — CAT control for a wide range of rigs, plus RX audio, CW, FT8 and APRS 2. Direct CI-V — connect to an IC-705 / IC-9700 on the same Wi-Fi, no Raspberry Pi required for basic operation ■ Features - Real-time display of RX frequency, mode and signal strength (S-meter) - Change frequency, mode, TX power, squelch and filter width - Play received audio through the speaker (with noise reduction) - PTT ON/OFF and microphone audio transmission - Wi-Fi PTT (PTT control via external devices such as M5Atom) - CW decoding (multi-station, up to 5) and CW transmit (presets, WPM control) - BLE CW keyer support (connect DualKey-BLE / RemoteKeyer-BLE over Bluetooth) - FT8/FT4 decode and transmit - APRS beacon transmission (with smartphone GPS) - Multiple profiles (switch between connection targets) - API key authentication and remote access over WireGuard VPN ■ What you need (important) This app does not work on its own. You must have one of the following (your own hardware): - A set-up Raspberry Pi Zero 2W connected to your radio (Hamlib/FastAPI installed), or - An IC-705 / IC-9700 (for direct CI-V connection) Connect it to the same Wi-Fi network as your iPhone. Raspberry Pi setup instructions and firmware are published on GitHub: https://github.com/ji1ore/M5CoreHamCAT ■ Who it's for For licensed amateur radio operators who have a compatible radio setup. This app contains no ads and no usage tracking. Any information is used only on your device and is never sent to external servers.
Screenshots
Verdict
The clearest difference is price: Wifi Rig CTRL at Free against Greyline FT8's $3.99. Wifi Rig CTRL also leads on iOS requirement (17.0 vs 26.5). Greyline FT8's advantage is chart position (#98 vs unranked). On update cadence, 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
Wifi Rig CTRL is free to download; Greyline FT8 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.
| Parameter | Greyline FT8 | Wifi Rig CTRL |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.8 (12 ratings) — better | — |
| Positive reviews | 90.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 4 days | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #98 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | JONATHAN MARK SCHULMAN | JIRO UENO |
In-app purchases
Greyline FT8
No in-app purchases
Wifi Rig CTRL
No in-app purchases





