G
Jgdh
Free
In-App PurchasesWith Ads
About
Decode and send slow-scan television (SSTV) images from ham radio or the International Space Station. View ISS passes, save and share your creations, and even fix distorted images. Offers a free version with limitations and a one-time purchase Pro option.
✓Decode SSTV audio to images
✓Send photos via SSTV
✓View ISS pass predictions
✓Support for 31 SSTV modes
✓Image correction and history
✓Optional Pro version with WAV export
Show original description
+1
What's New in Robot72
2026.11.3
November 7, 2026
• ISS passes: see upcoming passes for your location and get a reminder before each one. • Background reception: keep listening with the screen locked, with progress in a Live Activity. • History no longer has a limit for free users. • Fix slanted or shifted images, and export several images at once. • Clearer screens: a shorter setup on Receive, help on Transmit, and the most common modes at the top of the mode list. • More reliable decoding in noisy rooms and with mains hum.
More2
Subscriptions & In-App Purchases
$4.99
Robot72 Pro
Unlock all 31 SSTV modes, no watermark, WAV export.
User reviews
Developer apps
FAQ
What is Robot72 used for?
Robot72 is used to decode slow-scan television (SSTV) audio into images and to send your own photos as SSTV signals. It's particularly useful for receiving images from ham radio transmissions and the International Space Station (ISS).
How does Robot72 decode SSTV images?
You can hold your iPhone near a radio's speaker to decode live SSTV audio, or load a WAV recording from your files. The app automatically detects the VIS header, selects the correct mode, and reconstructs the image line by line.
Can I send my own photos with Robot72?
Yes, you can select a photo, choose the desired SSTV mode, add a caption, and play it through your device's speaker or a cable connected to your radio. The Pro version also allows exporting the audio as a WAV file.
Does Robot72 have ads?
Robot72 contains advertisements. You can watch short, non-personalized rewarded videos up to three times a day to unlock saving, sharing, or sending pictures in modes beyond Robot 36 and Robot 72 in the free version.
What are the differences between the free and Pro versions of Robot72?
The free version allows decoding and viewing all modes, and saving/sending Robot 36 and Robot 72 with a watermark. Robot72 Pro is a one-time purchase that unlocks all modes, removes the watermark, and adds WAV audio export.
How accurate are the ISS pass predictions?
ISS pass predictions are calculated on your iPhone using CelesTrak orbital data, providing peak elevation and direction for the next 48 hours. Your location data is not uploaded, ensuring privacy.
What is the update frequency for Robot72?
Robot72 was last updated on 2026-11-07 with version 2026.11.3. This indicates a recent update, suggesting ongoing development and support for the application.
Is Robot72 suitable for children?
Robot72 has an age rating of 4+, making it suitable for younger users. The app processes audio and pictures on the device and does not track users across apps.
