Si4Keyboard vs Video DRM

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.”

Note: This app only supports the MP4 video format. Easily protect your video files with Digital Rights Management (DRM). Encrypt the file with a password, watermark, and expiration date. The file will only open with our app. You can enter all data offline. We only need internet access to verify the video's expiration date. We do not request any permissions to use this app. If you need help, please email us at support@pdfcandle.com For the END USER LICENSE AGREEMENT FOR THE LICENSED APPLICATION, please use this link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/