Discover significant world events and historical moments. This app provides a glimpse into the past, making history accessible and engaging.
Historical snapshot by zihao zhang



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SDA 2000 is great, but it's not the only option. Explore 56+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.



Discover significant world events and historical moments. This app provides a glimpse into the past, making history accessible and engaging.




This app converts photos and images into a format compatible with D-STAR transceivers for the Share Picture function. Users can crop images, add text like call signs, and transfer them wirelessly or via Bluetooth to supported transceivers.



Easily personalize your device's home screen with your favorite photos. This application allows you to display pictures from your album directly on your screen, adding a personal touch to your device's interface.


This system helps security companies manage and monitor guard patrols using smartphones. Guards scan QR codes or tags to report incidents, send messages, and share their location in real-time. It also features an SOS button for emergencies.


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This app demodulates and plays AM and FM radio signals received by compatible SDR hardware. It allows users to listen to various broadcasts, manage station lists, and adjust audio settings. Requires a separate radio and host computer for operation.


Control compatible transceivers, share voice and pictures, and view station locations on a map. Access received station information, send text messages, and manage call sign and repeater lists. Customize transceiver and application settings for a streamlined experience.


Test web server responses with cURL-like functionality on your iPhone or iPad. Simulate various browsers and inspect raw HTTP headers and HTML. Analyze network performance with detailed timing information.


Receive instant push notifications for desired amateur radio contacts. Filter alerts by various criteria like callsign, band, mode, and location. Stay updated on DX spots from multiple sources.