Find amateur radio operators on air.
The app displays information from the international DX Cluster, used by radio amateurs to find stations on the air. It shows DX spots with details like callsign, country, frequency, and time, and includes various HAM radio tools.
Showing 21–40 of 1,000 ranked alternatives.
Roy Watson
Practice questions and track progress
Review official Class FCC questions and answers. Take quizzes by topic and full practice exams. Track performance and progress over time. Study for the license with structured practice and feedback.
Roy Watson
Pass the Extra Class Radio License
The app helps users prepare for the Extra Class FCC Amateur Radio License exam. It offers question review, topic quizzes, and simulated exams to track progress.
Black Cat Systems
Decode and display SSTV transmissions easily.
The app decodes and displays Ham Radio SSTV transmissions. It automatically detects and selects image formats, with manual control available.
Peter Marks
View spots, track contacts, export data
Displays real-time WSPRnet spots with contact details and signal information. Tap a spot to view the call on QRZ.com. Export data as CSV for external sorting and graphing.
Ronald Nicholson
Decode FT8 signals from audio input
Decode FT8 signals from audio or SDR sources. Support Level 1 decoding for standard callsigns or 13-character text. Generate FT8 message audio for testing. View decoded messages and metadata.
POKET ART STUDIO, OOO
Sketch and patterns
Create designs with a sketchpad interface. Select from modular patterns and fabric textures like wool, linen, and velvet. Choose geometric, natural, abstract, or ethnic prints. Customize colors and apply effects.
World Radio League Inc.
Log contacts and sync logbooks
Log contacts and manage amateur logs directly on mobile. Sync data between and website. View logging stats and awards. Track active operators and monitor QSOs in real time. Support for iOS, iPadOS, and Apple Silicon.
DEREK SPEARS
Check zones in one view
View local and alongside multiple zones in one interface. Convert times across different zones, including future and past dates. Set up widgets for iPhone and Apple Watch. Track daylight savings adjustments automatically.
Pignology, LLC
Log contacts, edit entries, export data
Log and search radio contacts in chronological order. Add and edit entries with detailed information. Export and import ADIF files. Resolve names and locations using callsigns. Access QRZ XML subscriber data and US-based QRZ lookup.
LinkeSOFT GmbH
Manage songs with lyrics and chords.
The app manages song collections with lyrics and chords for musicians. It offers features like chord variants, transposition, auto-scrolling, and metronome support.
micro systems
Connect to trxd via WebSockets and view
Control radio transceivers and extensions via WebSockets. View configured devices and their status. Perform remote operations for hamradio equipment. Look up callsigns with QRZ.com subscription. Manage transceiver settings and connections.
Electronial
Calculate coordinates and grid squares for projects
Offers calculators for designing radios and antennas. Users can find latitude and longitude from a maidenhead square or vice versa. Calculate distances between squares. Convert units. Locate current position.
Oleksiy Koldunov
Explore data and fleet information
Search vessels by name or IMO number. Access detailed information on commercial fleets worldwide. View specifications, ownership, and operational data. Stay updated on maritime industry trends and vessel movements.
Janus Pedersen
Record audio, control sweeping speed
Record audio with adjustable sweeping speed settings. Play preloaded voice samples for ghost hunting. Save and review recordings. Adjust volume and output settings. Connect via USB for data transfer.
AppSLabs OU
Identify rocks from photos or gallery
Identify rocks, stones, gems, and crystals by taking a photo or selecting from the gallery. Get instant results with detailed information about each item. Suitable for both professionals and amateurs.
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