Onami Radio, a simple radio app for iOS
Clean radio player, but TuneIn and Radio Garden already dominate this space.

Offline radiation map is solid, but multipeer chat feature is coming-soon vaporware.
Emergency preparedness users, disaster planners, individuals in radiation-prone areas
Red Cross First Aid app · Ready.gov mobile app
Core Feature(coming soon): offline chat with nearby iOS devices using Multipeer Connectivity Framework.
1. Disaster Alerts: API from authorities like NOAA + FEMA IPAWS 2. Live Radiation Map: EPA RadNet, 140 official U.S monitoring stations network, all 50 states 3. Offline-first: Built to function when there's no internet
Clean radio player, but TuneIn and Radio Garden already dominate this space.
Same-origin iframe trick keeps dark mode alive across HN navigations without extensions.
tmux for the cloud era with actual mobile apps that don't suck.
Sensationalist conflict tracker dressed up as a serious tool; zero technical innovation.
Free VIN decoder, but Carfax, NHTSA API, and CarsArrive already own this space.
Useful passive monitoring, but AirNow and PurpleAir already cover this for free.