# OK.secure — Messenger & crypto wallet

> Encrypted messenger and non-custodial crypto wallet with DeFi features. (iPhone/iPad app by OK.de Services GmbH.)

- Source: https://appshunter.io/ios/app/oksecure/id1518785117 (this page in markdown: same URL + `.md`)
- Developer: [OK.de Services GmbH](https://appshunter.io/developer/1692149044)
- Category: Social Networking, Utilities
- Price: Free
- Age rating: 12+
- Requires: iOS 16.6 · 100 MB
- Languages: American English, German (Germany)
- Released: 2020-07-27
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/oksecure/id1518785117/reviews.md

## What is 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!

## Key features

- End-to-end encrypted messaging
- Voice and video calls
- File and screen sharing
- Non-custodial crypto wallet
- DeFi and crypto trading
- Blockchain technology

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/oksecure/id1518785117/reviews.md

### 5/5 — Crypto wallet

*2024-02-25*

This integration is just cool how it just goes in the other person’s wallet when it’s send per chat, and how to spend the crypto on a voucher in all this store’s really useful.

### 5/5 — Great Messenger

*2023-11-02*

Love the app. Works seamless. I replaced my WhatsApp with it. Hope they stay a free service without advertising.

### 1/5 — Crashed before I could finish initial setup

*2021-03-09*

After receiving confirmation code, inputting it and clicking next, it crashed.

## Frequently asked questions about OK.secure

### Does OK.secure have ads?

Yes, OK.secure contains advertisements. Users may encounter ads within the application as part of its operational model.

### What is the age rating for OK.secure?

OK.secure is rated 12+ by app stores, indicating it is suitable for users aged 12 and older.

### What devices does OK.secure support?

OK.secure is available on iPhone and iPad devices, offering a secure communication and crypto management experience across Apple's mobile ecosystem.

### How often is OK.secure updated?

The application was last updated on March 10, 2026, with version 2.1.0. This suggests a commitment to ongoing development and feature enhancements.

### What kind of encryption does OK.secure use?

OK.secure employs military-grade end-to-end encryption, including 256-bit AES encryption, RSA 2048-bit key cryptography, Elliptic Curve Cryptography, and PBKDF2 key derivation with SHA-256 hashing for maximum security.

### Can I use OK.secure without a phone number?

OK.secure primarily requires an internet connection for its services, such as chat and calls, and does not rely on telephone charges. It emphasizes privacy by not requiring personal phone number details for core communication features.

### What cryptocurrencies can I store in the OK.secure wallet?

The non-custodial crypto wallet within OK.secure supports Bitcoin, Ethereum, and Binance Smart Chain. You can store, buy, and trade these digital assets directly from the app.

### Is my data truly private with OK.secure?

Yes, OK.secure operates on a zero-knowledge principle, meaning only you have access to your personal information and encrypted data. Your encrypted data is never shared with third parties.

## Version history (last 5 releases)

### 2.2.3 — 2026-08-26

Further UI Improvements and Tweaks

### 2.2.2 — 2026-06-04

Further UI Improvements and Tweaks

### 2.2.1 — 2026-04-22

OK.pay quickfixes for in-app view behavior of the KYC procedure

### 2.2.0 — 2026-04-17

Introducing OK.pay: OK.pay is integrated into the OK.secure app – for a seamless and secure experience. Manage your IBAN account, send and receive payments, pay worldwide with your Visa card, and access your digital wallet with just a few clicks.

### 2.1.0 — 2026-03-10

- UI improvements, modern look & feel
- Integration of new EBanking feature

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*