PhosphorRTTY
Stuart Woolley
Getting the latest details from the App Store…
Stuart Woolley
Getting the latest details from the App Store…
PhosphorRTTY decodes Radio Teletype (RTTY) signals in real time using your iPhone's microphone. Hold your phone near a shortwave radio tuned to an RTTY signal and watch the text appear on screen, character by character, on an authentic phosphor CRT display. No internet connection required. No external hardware. No account. Just your iPhone and a radio. WHAT IT DECODES RTTY is the oldest digital mode in amateur radio — two audio tones representing mark and space, encoding text via the 5-bit…
Top of Paid · Utilities in Germany. PhosphorRTTY is #50 there. Changes are over 7 days.
How the app presents itself on the App Store. Select a screenshot to open it full size.
Version 1.1 · 27 Sep 2026 · 17 days ago
Fixed error in waterfall display if running for a prolonged period of time Hardened FFT computations to minimise rounding errors
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| Germany· Paid · Utilities | #50 | New entry | Change unknown | #50 | 1 |
Higher on the chart is better: #1 is at the top.
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Germany · Paid · Utilities: best #50, latest #50, over 16 snapshots since 9 Oct. No snapshots on 9 Oct, on 10 Oct, on 11 Oct, on 12 Oct, on 13 Oct, and on 14 Oct; the line joins the snapshots on either side.
Entries, big moves, #1s and new versions we've recorded.
Their other apps that Appulse has seen in the charts, charting ones first.
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 PhosphorTEXUtilities | Not charting | ||
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