About OK.secure
What happens in OK.secure stays in OK.secure
Private Encrypted Messenger & Crypto Wallet platform.
The OK.secure app with end-to-end encryption based on blockchain technology for your private and secure communication.
OK.secure only requires your internet connection. NO telephone charges for calls, chat with your friends or make a video call with family, friends or colleagues at no additional cost from anywhere in the world.
> Encrypted Messenger with File-Sharing
- Chat feature with group chat
- Receive messages only AFTER accepted invitation; communicate securely and exclusively with your contacts, no threat to privacy
- Voice and video calls: Call your friends, family, colleagues and partners anywhere in the world
- Screen sharing, privately share your screen with your contacts during the call (web application)
- Share files securely and privately, including photos, videos, and voice messages (web application)
- Military-grade end-to-end encryption for all features (256-bit AES encryption; RSA 2048-bit key cryptography; Elliptic Curve Cryptography; PBKDF2 key derivation with SHA-256 hashing)
OK.secure is simple, FREE and easy to use.
OK.secure protects your privacy by encrypting all of your messages and data at NO EXTRA CHARGE.
We offer the highest level of security and privacy.
Our OK.secure platform operates on a ZERO-KNOWLEDGE principle, providing complete data security.
No one but you has access to YOUR personal information.
OK.secure privacy features include:
* End-to-end encrypted communications and data
* Blockchain technology for decentralized digital identities
* Decentralized cloud storage
* Zero knowledge concept - we can never see your messages or data
* Push notifications notify you when new messages arrive
* Integrated into the OK.secure web application - use the full range of features from your PC / Mac
* Protected privacy - your encrypted data is never be shared with third parties
> Crypto Wallet
In addition to being a secure messenger, our latest update includes the all-new Crypto Wallet, a one-stop shop for all your crypto needs. Keep all your valuable and private crypto assets in one secure place with end-to-end encryption built into the blockchain.
* Store: Keep all your crypto in the most secure place in your own non-custodial crypto wallet (BTC wallet, Ethereum wallet) built into the OK.secure app
* DeFi: Buy and trade digital assets from your crypto wallet
Wallet features:
* Non-custodial multi-cryptocurrency wallet with Bitcoin, Ethereum & Binance Smart Chain support
* Crypto/Fiat exchange
* Send/request/pay crypto directly in chat
* QR scan for easy crypto payments
* Biometric authentication
* Buy gift cards and vouchers with crypto
Visit our knowledge-base:
https://www.ok.de/faq
Follow us:
https://business.facebook.com/OK.de.email
What happens in OK.secure stays in OK.secure!
Additional APP Information
Latest Version
2.2.1Uploaded by
Raúl HR
Requires Android
Android 6.0+
Category
Free Communication AppContent Rating
Everyone
Security Report
Report
Flag as inappropriateWhat's New in the Latest Version 2.2.1
Last updated on Jan 23, 2026
Introducing OK.ai: Your new built-in AI assistant in OK.secure—ready with quick answers, smart suggestions, message drafting, travel ideas, and more.
Seamless & Private: Fully integrated with short, helpful replies and strict privacy—OK.ai never reads your messages or collects sensitive data.
Free & Available Now: Smarter, privacy-first communication with OK.ai is now in your OK.secure app.







