Type2phone - Type2Phone: Use your Mac as keyboard for iOS devices
CheatKeys - View Windows keyboard shortcuts in the current application.
1keyboard - Type on your iPhone, iPad or AppleTV using your Mac keyboard
cheat.sh - The only cheat sheet you need Unified access to the best community driven documentation
Mocha Keyboard - Mocha Keyboard is a leading Bluetooth keyboard application for iPad, iPhone, and iPod touch.
KeyCue - Menu shortcuts are supposed to provide quick access to frequently used menu commands.