CryptKB vs OnBoardAI

CryptKB helps you encrypt message text before it leaves your iPhone or iPad. Use the custom keyboard to write a message, choose a password, and insert an encrypted payload into Messages or another text field. Or open the Messages extension to stage a CryptKB bubble inside a Messages draft. The other person can open the same payload in CryptKB and decrypt it locally with the matching password. Why people use CryptKB: - Local encrypt and decrypt on device - Custom keyboard for ordinary text fields - Messages extension for composing and opening CryptKB bubbles - AES-256-GCM encryption with PBKDF2-HMAC-SHA256 key derivation - ASCII-safe payload format for copy, paste, and sharing - Optional saved conversation passwords protected by Face ID or device passcode - No account creation, no backend relay, no analytics SDKs, and no ad tracking in the app - Built-in playground, settings, privacy notes, and diagnostics How it works: 1. Switch to CryptKB Keyboard. 2. Type your message. 3. Enter a password. 4. Tap Encrypt & Insert. 5. Review the encrypted text and tap Send yourself. To decrypt, paste or open a CryptKB payload, enter the matching password, and read the plaintext locally. CryptKB intentionally reveals decrypted text in a local panel instead of writing it back into the conversation automatically. Important platform notes: - Apple does not allow third-party keyboards to tap the host app's Send button, so sending is always manual. - Password recovery is not possible by design. - CryptKB protects message content inside its encrypted payload, not message metadata like recipients, timestamps, screenshots, or notification previews.

OnBoard is a personal intelligent space that runs completely locally on your device. Powered by Google's Gemma 4 language model and LiteRT-LM technology, the app delivers instant responses without relying on third-party servers, cloud computing, or subscriptions. Everything you write, record, or upload stays exclusively on your iPhone. MAIN FEATURES: • Local Text Chat: A fully featured intelligent assistant that speaks and thinks offline. • Image Analysis: Upload photos from your gallery or take pictures with your camera — the AI will help identify objects, read text, or analyze details. • Voice Notes and Queries: Local transcription converts your voice into text and instantly passes it to the model for analysis. • Flexible Settings: Control the "creativity" of responses by adjusting Temperature, Top-P, Top-K, and manage the context window size. OPTIONAL WEB SEARCH: Need current news, exchange rates, or the weather? Simply connect your own search service API key in the settings. SECURITY AND PRIVACY: The app does not collect, store, or share your conversations. The model is integrated directly into the app and utilizes the power of your iPhone's GPU. Your thoughts, ideas, and diary entries belong to you alone.