Explore radio signals with your RTL-SDR dongle. Listen to AM/FM/SSB/CW, view FFT and waterfall displays, and customize your experience. Requires a remote rtl_tcp instance over WiFi.
4.5(2 ratings)
FreeIn-App Purchases
Best apps like PhosphorTEX
10+ similar apps compared and reviewed
4.5 avg rating
10 free apps
Updated October 2026
Whether you want more options like PhosphorTEX or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
Top Alternatives to PhosphorTEX
FT Ham – FT8/FT4 transceiver by PABLO TURRION SAN PEDRO
Decode & send FT8/FT4 signalsStrong Contender
🔧 Utilities
4.7(3 ratings)
FreeIn-App Purchases
Decode and transmit FT8/FT4 amateur radio signals directly from your mobile device. Features real-time decoding, automatic QSO sequencing, and an integrated logbook with ADIF export. All processing is done offline and locally on your device.
4.0(4 ratings)
FreeIn-App Purchases
This app allows ham radio operators to encode images into audio signals for transmission and decode received audio back into images. It supports various SSTV modes, live camera feeds, and even AI-generated QSL cards. Receive alerts for International Space Station SSTV events.
