Radio Messenger vs DigiDecoder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Radio Messenger
Communicate off-grid using amateur radio frequencies. Send messages, files, photos, and locations without cellular service. Supports APRS and enhanced direct messaging modes.
- Off-grid messaging
- APRS messaging
- Enhanced messaging
- Location sharing
- Offline maps
- File and image sharing
- Identity verification
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Send messages, files, photos, and locations over amateur radio using your iPhone or iPad. Radio Messenger brings modern conversation to packet radio. Whether you are using APRS or experimenting on a local frequency, the app is built around messaging first, not beacons and maps. Use Radio Messenger with supported Bluetooth radios, KISS TNCs, or integrated modem with an audio adapter to stay connected when cell coverage is unavailable or simply not the point. Two messaging modes. One app. APRS Messaging Works with the existing APRS ecosystem. Send messages with acknowledgements, retries, delivery tracking, and optional Message Continuity tap into store and forward and internet delivery to help messages reach you even when you are away from the radio. Enhanced Messaging A modern radio-only messaging mode for direct conversations. Includes verifiable identity, delivery acknowledgements, read receipts, reactions, and support for longer messages. Features • Messaging focused Conversations, contacts, and multi-device sync designed to feel familiar and easy to use. • Location sharing Share your location or drop a labeled pin directly in a conversation. No automatic beaconing. You choose when and what to share. • Offline maps Maps are cached automatically so shared locations remain visible when you are off-grid. • Presence & On Air See who is active and recently heard. Share a short status and emoji so others know you are around. • File & image sharing Send photos and documents in Enhanced Messaging conversations. Recipients can accept or decline transfers. • Identity & verification Verify who sent a message and manage trusted identities for more confident communication. • Search & inbox tools Find conversations by name, callsign, or message content. Pin threads, mute alerts, and manage your inbox with ease. • Radio native Built for Bluetooth radios and external TNCs, with frequency control available on supported hardware. Radio Messenger is designed for licensed amateur radio operators and requires compatible radio. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
DigiDecoder
This application decodes and encodes various ham radio digital modes in real-time. It automatically recognizes signals, displays them with an animated waterfall, and supports sending SSTV images, CW, FT8, and Packet messages.
- Real-time digital mode decoding
- Automatic signal recognition
- Animated waterfall display
- SSTV image encoding
- CW, FT8, and Packet message encoding
- Bluetooth and network TNC support
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DigiDecoder is a universal ham radio digital modes decoder and encoder. Use the built-in microphone or connect an audio cable directly for better input quality. One app for all the signals! The correct digital mode is automatically recognized and decoded in real time with an animated waterfall display. Quickly encode and send beautiful SSTV images, plus CW, FT8, and Packet messages. Bluetooth and network TNCs for Packet are supported as well. Try DigiDecoder free for 7 days. After the trial, continue with an affordable monthly subscription, or unlock lifetime access with a one-time purchase (a few months' worth). Nothing is charged during the trial and you can cancel anytime. Currently supported modes (more to come): SSTV: Robot 8 BW - 160×120 Robot 12 BW - 160×120 Robot 24 Color - 160×120 YCrCb Robot 24 BW - 320×240 Robot 36 - 320×240 YCrCb Robot 72 - 320×240 YCrCb Scottie S1 - 320×256 RGB Scottie S2 - 320×256 RGB Scottie DX - 320×256 RGB Martin M1 - 320×256 RGB Martin M2 - 320×256 RGB PD50 - 320×256 YCrCb PD90 - 320×256 YCrCb PD120 - 640×496 YCrCb PD180 - 640×496 YCrCb PD240 - 640×496 YCrCb PD160 - 512×400 YCrCb PD290 - 800×616 YCrCb Packet: AX.25 1200 - AFSK Bell 202, 1200/2200 Hz FX.25 1200 - AX.25 + Reed-Solomon FEC AX.25 300 - AFSK 1600/1800 Hz FX.25 300 - AX.25 300 + Reed-Solomon FEC IL2P 1200 AFSK - Bell 202 + RS FEC IL2P 300 AFSK - 1600/1800 Hz + RS FEC IL2P 300 BPSK - 1500 Hz DBPSK + RS FEC Weak Signal: FT8 - 8-tone GFSK, 15s periods FT4 - 4-tone GFSK, 7.5s periods JS8 - Keyboard-to-keyboard, FT8-based modulation WSPR - 4-FSK beacons, 2 min periods Narrowband: RTTY - 45.45/50/75 Bd CW/Morse - 5-55 WPM Olivia - 8/250, 8/500, 16/500, 16/1000, 32/1000 Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Radio Messenger at 100% against DigiDecoder's 50%. Radio Messenger also leads on rating (5.0 vs 4.5). DigiDecoder's advantage is update cadence (every 4 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Radio Messenger sells 2 in-app purchases, starting at $1.99 per month and DigiDecoder sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
Radio Messenger holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews point the same way: 100% of Radio Messenger's written reviews are positive against 50% of DigiDecoder's.
Radio Messenger ships an update every 3 weeks, DigiDecoder every 4 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | Radio Messenger | DigiDecoder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.5 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 6 | 8 — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Island Magic Co. | Lukasz Skierkowski |
Customer experience
Radio Messenger
DigiDecoder
In-app purchases
Radio Messenger
- Radio Messenger Plus Monthly$1.991 Month
- Radio Messenger Plus Yearly1 Year trial$14.991 Year
DigiDecoder
- DigiDecoder Monthly7 Days trial$2.991 Month
- DigiDecoder TrialFree
- DigiDecoder Lifetime$8.99








