CryptKB
工具程式
免費 · 專為 iPad 設計
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.
評分與評論
- 此 App 尚未收到足夠的評分或評論，無法顯示概覽。
開發者Seth Farrington18896201822指出App的隱私權實務可能包含下方描述的資料處理。如需更多資訊，請參閱 開發者的隱私權政策 。
不收集資料
開發者不會從這個 App 收集任何資料。
輔助使用
開發者尚未表示此 App 支援的輔助使用功能。 進一步瞭解
資訊
- 供應商
- Seth Farrington
- 大小
- 4.9 MB
- 類別
- 工具程式
- 相容性
需要 iOS 17.0 或以上版本。
- iPhone
需要 iOS 17.0 或以上版本。 - iPad
需要 iPadOS 17.0 或以上版本。 - Mac
需要 macOS 14.0（或以上版本）以及配備 Apple M1（或以上版本）晶片的 Mac。 - Apple Vision
需要 visionOS 1.0 或以上版本。
- iPhone
- 語言
- 英文
- 年齡分級
4+
- 4+
- 版權
- © 2026 MidState Agency. CryptKB and related marks are property of MidState Agency, all rights reserved.