wwvbgps vs KeyCmd

Emulates WWVB longwave time broadcast using DAC harmonics to produce a very weak signal at the carrier frequency of 60KHz. This allows a radio-controlled clock (e.g. many Casio watches), to receive the signal when placed near the speaker of the iOS device. There are other apps that do this but they don't seem to use the GPS time signal, instead relying on the system clock which will drift when it doesn't have internet for a long time (e.g. at sea) because iOS does not appear to use GPS time for system clock updates. This app specifically avoids using the system clock and prefers GPS time. To force using GPS, try it in Airplane mode, with all the radios off. Tested with Casio GW M5610U.

KeyCmd turns your device into a versatile wireless keyboard, touchpad, gamepad, macro pad and remote control. When paired with Openterface KeyMod, you can control PCs, servers, Raspberry Pi, embedded systems and other USB devices directly from your device. Use your device as a wireless keyboard for typing and sending special keys. Use the touchscreen as a touchpad for moving the pointer, clicking and scrolling. Create custom controls and macros for frequently used actions. KeyCmd also supports terminal control, making it useful for developers, system administrators and makers who need to interact with computers and embedded systems remotely. KeyCmd and KeyMod are designed for makers, developers, IT professionals, system administrators and hardware enthusiasts. No special software or drivers are required on the target device. KeyMod works as a standard USB HID keyboard and mouse.