OTP Conductor vs Si4Keyboard

OTP Conductor is a suite of applications for iOS, watchOS and macOS that provide 2-factor authentication support. It runs across all your Apple devices and synchronize data via iCloud and iCloud Keychain. Once you add an account, it will be available on all iPhone, Mac and Apple Watch signed in with the same iCloud account. iOS App also supports QR code scan. OTP Conductor is fully compatible with Google Authenticator and provides a more native approach for the Apple ecosystem.

Si4Key: Secure Your Input, Empower Your Identity Si4Key is a privacy-first companion keyboard designed to enhance your existing input method with seamless local encryption, one-tap digital signature, and offline key management. Whether you’re sending private messages, signing documents, or inputting sensitive data, Si4Key ensures that every keystroke stays secure — without changing how you type. Key Features: • Local-first encryption — your input never leaves your device • Built-in support for OpenPGP/GPG digital signatures • Offline key storage — no cloud syncing, you’re in full control • Minimal and intelligent design — easy to use, smart when needed • Supports multiple languages with future-ready architecture Why Si4Key? Because your input method deserves the same level of protection as your data. Si4Key doesn’t replace your keyboard — it strengthens it. “Typing should be private. Signing should be simple. Si4Key makes both possible.”