FT8 Decoder vs OXYGEN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FT8 Decoder
This application decodes FT8 digital signals from amateur radio bands. It can process audio from external sources or directly from an SSB radio or SDR. The app also generates FT8 modulated audio for experimentation.
- Decodes FT8 8FSK modulated signals
- Processes external audio or SDR sound
- Supports standard callsigns and 13-character messages
- Generates FT8 message audio
- Experiment with sending and receiving FT8 audio
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An FT8 decoder. FT8 is a weak signal digital mode, currently very popular in the amateur radio HF shortwave bands. The ft8d app allows decoding FT8 8FSK modulated signals contained in externally provided audio or sound from an SSB radio or SDR. The app supports Level 1 decoding of messages with standard callsigns or 13 character free text messages. The app can also generate standard FT8 message audio, so can be used to experiment with sending and receiving FT8 encoded and modulated audio. The app does NOT perform Auto-sequencing, or decode long hashed callsigns.
OXYGEN
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OXYGEN-GO by DEWETRON enables seamless connectivity from a mobile device to OXYGEN running on the DAQ system via SCPI. Users can preview analog hardware channel data, review and modify hardware channel settings, and remotely start, stop, or pause recordings. This functionality supports test and measurement engineers during instrumentation and sensor checks—both before and after measurements—especially when the DUT and testbed control are located separately. Prerequisites: - OXYGEN's SCPI interface must be enabled - DAQ system and mobile device must be connected to the same network
Screenshots
Verdict
The clearest difference is price: OXYGEN at Free against FT8 Decoder's $1.99. OXYGEN also leads on update cadence (every 3 weeks vs every 18 months). On ads, in-app purchases, device support and iOS requirement 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
OXYGEN is free to download; FT8 Decoder costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
FT8 Decoder ships an update every 18 months, OXYGEN every 3 weeks. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.
| Parameter | FT8 Decoder | OXYGEN |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.3 (8 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 18 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 1 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | HotPaw Productions | DEWETRON GmbH |
In-app purchases
FT8 Decoder
No in-app purchases
OXYGEN
No in-app purchases
