Robot72 - SSTV Decoder
Decode HAM Radio & ISS SSTV
Free · In‑App Purchases
Catch SSTV images from amateur radio and the ISS, or send your own photos as audio. 25+ modes — Robot, PD, Martin, Scottie. Auto-detect built in.
Robot72 is a slow-scan television (SSTV) encoder and decoder for iPhone. Listen to amateur radio SSTV transmissions and decode them into images, or send your own photos as audio that any SSTV receiver can pick up.
【Why Robot72】
Built for radio enthusiasts: Robot72 is designed for amateur radio operators, SWLs, ISS pass watchers, and anyone curious about how images travel as sound. Auto-detection means you do not need to know the mode in advance — just tap Listen and the app figures it out.
Private by design: All decoding and encoding runs locally on your device. Robot72 has no backend, no analytics, and no ads. The microphone is used only while you are actively listening, and your photos never leave the device.
Full SSTV mode coverage: Robot 36, Robot 72, PD 50/90/120/160/180/240/290, Martin 1/2/3/4, Scottie 1/2/3/4/DX, SC2 30/60/120/180, Wraase, AVT 24/90/94/125/188 and more — 25+ modes in total.
【Features】
• Auto-detect incoming SSTV mode from the VIS code
• Decode live audio from the microphone, or import a WAV file
• Encode any photo into SSTV audio and play it through the speaker or export as WAV
• Decode history with thumbnails, mode, and timestamp for every entry
• Share or save decoded images and exported audio files
【Pro】
Robot72 includes a free tier for everyday use. The optional Pro upgrade unlocks the full library of SSTV modes for transmission, removes the watermark from sent images, and lifts the history cap. Pro is a one-time purchase — no subscription.
Ratings & Reviews
Updated the UI, fixed issues, and improved performance.
The developer, 晨阳 段, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 晨阳 段
- Size
- 33.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - iPad
Requires iPadOS 18.2 or later. - Mac
Requires macOS 15.2 or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Italian, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Robot72 Pro $6.99
- Copyright
- © 2026 Hilalum