DigiDecoder vs 73 by N0AGI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DigiDecoder
Decode and encode various ham radio digital modes in real-time. Supports automatic mode recognition, SSTV image transmission, and multiple packet TNC options. Offers a free trial before monthly subscription or lifetime purchase.
- Universal digital modes decoder/encoder
- Automatic mode recognition
- Real-time animated waterfall display
- SSTV image encoding and transmission
- Support for FT8, CW, Packet, and more
- 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 Voice: RADE - neural OFDM digital voice Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
73 by N0AGI
Quickly look up FCC-licensed amateur radio call signs with comprehensive details. Save favorites for offline access and customize your experience with various themes. Your data remains private with no ads or tracking.
- Search by call sign or operator name
- Filter by license class, status, state, city
- View full FCC record
- Save call signs to Favorites
- Offline access to favorites
- Customizable themes
- QR code sharing
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73 is the fastest way to look up any FCC-licensed amateur radio call sign — right from your pocket. SEARCH & FILTER - Search by call sign or operator name - Filter by license class, status, state, and city - Full FCC record: name, city/state, class, status, dates, previous call signs, FRN - Recent searches remembered for quick re-lookup FAVORITES - Save any call sign to your Favorites list - Stored locally — works offline - Filter, search, and multi-select your saved list CALL SIGN DETAIL - QR code for quick sharing - One-tap share sheet - Direct link to call.n0agi.com record THEMES 14 hand-crafted themes to match your shack: Dark: Midnight, Solar, Matrix, Neon, Gaming, Ocean, Forest, Sandstone, Arctic, Spectrum Light: Daylight, Sand, Sage, Plum PRIVACY FIRST No account. No ads. No tracking. Your data never leaves your device. Powered by the FCC Universal Licensing System. UNLOCK 20-day free trial with full access. One-time $2.99 — no subscription, ever. 73 de N0AGI
Screenshots
Verdict
The clearest difference is rating: 73 by N0AGI at 5.0 against DigiDecoder's 4.5. DigiDecoder's advantage is ratings volume (8 vs 1) and device support (3 vs 1). On price, update cadence, 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. DigiDecoder sells 2 in-app purchases, starting at $2.99 per month and 73 by N0AGI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
73 by N0AGI holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: DigiDecoder has 8 ratings behind it against 1, so its average is the more settled of the two.
Both ship on a similar rhythm, roughly weekly. Both last shipped on November 5, 2026.
| Parameter | DigiDecoder | 73 by N0AGI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Lukasz Skierkowski | N0AGI LLC |
Customer experience
DigiDecoder
73 by N0AGI
In-app purchases
DigiDecoder
- DigiDecoder Monthly7 Days trial$2.991 Month
- DigiDecoder Lifetime$8.99
73 by N0AGI
- Unlock 73 by N0AGI$2.99
