Bundles popular payloads (Hekate, Fusee), supports custom .bin files, and features a modern UI. Rekado on GitHub
Most modern Android phones support USB On-The-Go (OTG), which allows them to act as a host and send data to other USB devices.
Using an Android device as a payload injector for your Nintendo Switch is one of the most convenient and cost-effective ways to boot into custom firmware (CFW) like Atmosphere or Hekate. Instead of carrying a dedicated RCM dongle or staying tethered to a PC, your smartphone acts as a portable, always-ready injector. What is a Switch Payload Injector?