VFLEX App vs Greyline FT8
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VFLEX App
This application connects to a specific hardware product to allow users to configure various settings. It serves as a digital interface for a patented power supply system.
- Connect to VFLEX hardware
- Configure power supply parameters
- Patent-pending hardware integration
- User-friendly interface
Read full descriptionHide full description
VFLEX is a companion to our patent pending hardware product. This app can be used to connect to a VFLEX and configure various parameters. Privacy policy: https://werewolf.us/pages/privacy Terms of service: https://werewolf.us/pages/terms
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
Read full descriptionHide full description
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 price: VFLEX App at Free against Greyline FT8's $3.99. VFLEX App also leads on rating (5.0 vs 4.8) and iOS requirement (15.1 vs 26.5). Greyline FT8's advantage is update cadence (every 4 days vs every 3 months) and ratings volume (12 vs 2). On 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
VFLEX App is free to download; Greyline FT8 costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VFLEX App holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Greyline FT8 has 12 ratings behind it against 2, so its average is the more settled of the two.
VFLEX App ships an update every 3 months, Greyline FT8 every 4 days. The most recent releases landed on September 29, 2026 and October 3, 2026 respectively.
| Parameter | VFLEX App | Greyline FT8 |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 5.0 (2 ratings) — better | 4.8 (12 ratings) |
| Positive reviews | — | 90.0% of reviews |
| Number of ratings | 2 | 12 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.5 |
| Further details — not scored | ||
| Size | 47 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Tundra Labs | JONATHAN MARK SCHULMAN |
Customer experience
VFLEX App
Greyline FT8
In-app purchases
VFLEX App
No in-app purchases
Greyline FT8
No in-app purchases






