CoronaSDR vs Flipper Map

Explore the radio spectrum from your iPhone or iPad. CoronaSDR connects to an RTL-SDR receiver through a rtl_tcp server on your local network, bringing live tuning, audio, spectrum, and waterfall displays to your screen. LISTEN AND EXPLORE • Receive AM, narrow FM, wide FM stereo, USB, LSB and CW. • Find signals with the live spectrum and waterfall. • Tune by dragging across the spectrum and adjust receive bandwidth, squelch, and gain. • Scan saved stations or a frequency range. • Keep listening in the background with system playback controls. NEW: CW AND FT8 DECODING • Turn a selected CW signal into text, with listening-pitch and decoding-speed controls. • Receive FT8 messages with a message history, details, and text sharing. • Mute listening audio while decoding continues in the foreground. • Freeze displayed results to read them while reception continues. CW and FT8 decoding are receive-only and currently experimental. Decoding requires an active receiver connection and pauses when the app moves to the background. Some signals and messages may be missed. FT8 reception times are estimates. SAVE YOUR STATIONS • Organize favorites with tags. • Import and export station lists in CSV or TSV format. • Return to saved frequencies and listening modes. ADJUST YOUR RECEIVER • Set gain and frequency correction in PPM. • Control direct sampling, offset tuning and bias tee where supported by your receiver and server. • Adjust audio filters, audio gain control and noise blanking. • Use deep links to open listening actions. REQUIREMENTS • iPhone or iPad running iOS 18 or later. • An RTL-SDR receiver connected to a running rtl_tcp server on your local network. • A suitable antenna for the signals you want to receive. Receiver hardware, antenna, and server are required separately. Available frequencies and reception quality depend on your equipment and setup. CoronaSDR is free and open source.

Flipper Map connects to your Flipper Zero over Bluetooth and displays your Sub-GHz signal files on an interactive map. See exactly where your saved signals are located and trigger them when you're nearby. Control garage doors, parking barriers, gates, and more with just one tap. FEATURES Attach GPS locations to your signal files and view them as pins on the map. The app shows how far away you are and helps you quickly find the right signal. When you get close to a saved signal, a Send button appears automatically. Tap once to transmit, or hold to keep sending. Manage your files easily – rename, delete, move signals by dragging pins on the map. No accounts needed. No cloud uploads. Your data stays on your device. LIVE ACTIVITIES Live Activities on your Lock Screen show the nearest signal and update as you move. Send signals without opening the app. APPLE WATCH With the Apple Watch app, you can browse your signals and send them directly from your wrist. CARPLAY Apple CarPlay to quickly access and send nearby signals directly from your car — perfect for opening gates or barriers without touching your phone. SIRI & AUTOMATIONS Use Siri to trigger sending of nearby signals. If you're an advanced user, check out Flipper Map actions in Shortcuts app. Automate things to your specific needs. DUPLICATES AND SIMILAR SIGNALS Detect duplicate signals and easily manage them. Group similar signals that have slightly different keys but matching patterns (e.g. Princeton button variants, Keeloq hopping codes, etc). NOTES • Requires a Flipper Zero or compatible device such as Kiisu. • GPS coordinates can be assigned directly in Flipper Map by placing a pin on the map, or automatically when using an external GPS module connected to your Flipper Zero via GPIO (Check your firmware features). DISCLAIMER: Flipper Map is not affiliated with, endorsed by, or sponsored by Flipper Devices Inc.; Flipper, Flipper Zero, and the Flipper logo are trademarks of Flipper Devices Inc. and are used for identification purposes only. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/