# Crypviser Secure Messenger — Encrypted Chats, Video & Call

> Blockchain-based secure and anonymous messaging, video calls, and file sharing. (iPhone/iPad app by Crypviser GmbH.)

- Source: https://appshunter.io/ios/app/crypviser-secure-messenger/id1282141716 (this page in markdown: same URL + `.md`)
- Developer: [Crypviser GmbH](https://appshunter.io/developer/1282141715)
- Category: Social Networking, Lifestyle
- Price: Free
- Rating: 4.51/5 from 81 App Store ratings · 111 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 170 MB
- Languages: English, German, Russian, Turkish
- Released: 2018-04-30
- Data updated: 2026-08-28
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/crypviser-secure-messenger/id1282141716/reviews.md

## What is Crypviser Secure Messenger?

Тhe New Standard of Security and Anonymity.
Crypviser  is the most private messaging app, as it is based on Blockchain technology.
The decentralized Crypviser Messenger lets you to enjoy private video chat & voice calls with automated blockchain encryption. There are no other alternatives available on the market. 
We utilize Blockchain to eliminate all threats of Man-in-the-Middle attack and solved the historical public key encryption issue by using decentralized encryption keys, exchanges, and authorization algorithms. 
Your Messages, Videos, Photos, Data, etc will reach their destination unfiltered, and most importantly UNBLOCKED!

WHY SHOULD YOU USE CRYPVISER AS YOUR REGULAR CHAT, VOICE & CALLS MOBILE APP?

Crypviser is based on Instant Communication Platform which cannot be Blocked or Stopped, Totally Anonymous, Bullet Proof Security using Military Grade Encryption, Salsa 20/20, Ecliptic Curve Cryptology, 512 Hash, 

Decentralized. 
Our instant private messenger has introduced a new era of cryptography based on Blockchain technologies. Attacks on your text message are impossible because crucial encryption keys are truly authenticated and distributed among thousands of blockchain nodes.

Anonymous. 
One of our core features is, that only you should decide which text message is to be made public and which isn´t. Crypviser is the unique secure chatting app which doesn't require your phone number or perform SMS verification.

Highly Secure. 
Send text message with our security protocol developed on genuine end-to-end encryption and blockchain based authentication algorithms exceed today´s requirements against all kinds of threats. 

File sharing. 
Enjoy sharing as many encrypted and private files, photos or videos as you want without size restriction. So we expand our boundaries from usual smm messenger and allow you limitless activities. Use our video calling app for all media sharing you need.

Intrusion Detection. 
Detect and prevent MiTM ("Man-in-the-Middle") attacks by third parties through network. You will be always informed about eavesdropping attempts by third parties, where an attacker may stealthily listening to the private conversation without your consent.

Multi-device support. 
Enjoy maximum convenience of running encrypted sms in the same message app's account on different devices.

Secure sync.
Have all your private messages and information synchronized to all your devices while being totally protected in encrypted mode.

## Key features

- Blockchain-based encryption
- Anonymous messaging
- Private video and voice calls
- Encrypted file sharing without size limits
- Man-in-the-Middle attack detection
- Multi-device support
- Secure message synchronization

## What do users think of Crypviser Secure Messenger?

Overall sentiment: mixed

**Pros**

- 🔒 Blockchain-based encryption and security
- 🔒 Screenshot detection and intrusion alerts
- 🔒 Message forwarding and copying restrictions
- 👍 User-friendly and minimalist interface
- 🎥 High-quality video and voice calls
- 💡 Ephemeral/disappearing messages feature
- 💡 No phone number required for registration
- 🌍 Anonymous communication capability
- ⚡ Fast message delivery
- 🎨 Stylish and modern design
- 🔐 Multiple security layers (Touch ID, password, QR code)

**Cons**

- 💰 Requires paid subscription for full features
- 🐛 Frequent connectivity issues ('No Internet Connection' errors)
- 🐛 App crashes and freezes during login
- 🐛 Unstable performance and crashes
- 🐛 Messages not delivered reliably
- 🐛 Account activation issues and delays
- 🐛 Cannot receive messages after activation
- 🐛 Video/audio calls disconnect immediately
- 🐛 Registration and captcha validation failures
- 🐛 Difficult to add and manage contacts
- 🐛 Poor account transfer and export/import functionality
- 🐛 Contacts disappear after crashes
- ⚠️ Lack of customer support after purchase
- ⚠️ Billing issues and repeated payment requests
- ⚠️ Slow notification delivery
- ⚠️ Limited customization (no dark mode, single color backgrounds)

**Commonly reported bugs**

- No Internet Connection error despite working network
- Login screen freezes with password field obscured by popup
- Captcha validation rejects correct inputs
- Registration fails with 'insufficient characters' error despite meeting requirements
- App crashes on iOS 12 and older versions
- Messages sent but not received or arrive out of order
- Disappearing message bombs remain indefinitely if unsent
- Account requires re-authentication after reinstall
- Video calls auto-disconnect upon connection
- App crashes when writing messages
- Last word of messages gets cut off
- Contacts list disappears after app crash
- Repeated payment requests despite active subscription

**Most requested features**

- Dark mode option
- Custom screensaver/wallpaper support
- Group chat functionality
- Better photo selection interface (not scrolling through all photos)
- Complete screenshot blocking (not just alerts)
- More blockchain node/server information in subscription details
- Improved notification system
- Better contact management tools

## Recent user reviews (10 of 111)

All indexed reviews: https://appshunter.io/ios/app/crypviser-secure-messenger/id1282141716/reviews.md

### 5/5 — 💔

*2025-08-17, version 2.30*

WHY DID YOU DELETE IT I’M CRYING

PLEASE RETURN IT🙁

### 1/5 — THIS IS HORRIBLE APP I HATE IT

*2025-02-17, version 2.30*

Ok so I got this app with someone I know to call and text on it until we were going in the app it said “No iNtErNeT cOnNeCtIoNs”

### 1/5 — Don’t get this app

*2025-01-16, version 2.30*

It doesn’t let u in

### 2/5 — Мда уж.

*2024-11-29*

Перестало работать.

«Отсутствует интернет соединение»

Только у меня. У собеседников работает.

### 3/5 — 经常连不上网

*2023-02-13, version 2.27*

使用不稳定，经常连不上网！明明网络是正常的，可是就无法连接服务器！激活账户有时会无法激活，或者可以激活但是花的时间太长了！激活后收不到信息！无法打电话与视频，这个很遗憾！希望改进。打电话与视频可以接通，但是一接通就自动挂断！有些时候不够稳定，会闪退。

### 1/5 — Horrible security

*2023-01-22, version 2.27*

Horrible security. App doesn’t want to transfer over with the same account. Horrible instructions on export and import which doesn’t work at all.

### 5/5 — E una bella promesa ora che va via wicker

*2022-12-09, version 2.27*

ne vaëe la pena e un po lenta le notifiche sono a volte in ritardo ma comunque e una bella alternativa li diamo fiduccia se migliorano magare anche con alcun versione PRO a pagamento

### 4/5 — Всё норм

*2022-03-09, version 2.25*

Скажите пожалуйста как можно изменить данные аккаунта и как при необходимости его можно деактивировать?

### 1/5 — Support

*2020-09-06, version 2.1.5*

Soll man kaufen, dann kein Support

### 5/5 — Зачем тут блохчейн

*2020-04-17*

А зачем тут вообще нужен блохчейн? Какую он даёт защиту? Связь же по нему не идёт. Просто логины на блокчейне и все.

**Developer response:** Блокчейн необходим для защиты и передачи ваших ключей шифрования, без которых ни одна криптографическая модель не имеет смысла по причине уязвимости атаки ("Человека-по-Середине"). Крипвайзер реализует DPKI модель обмена ключами шифрования и представляет технологию Автоматического Шифрования для максимальной безопасности и защщиты данных.

## Frequently asked questions about Crypviser Secure Messenger

### What is Crypviser Secure Messenger?

Crypviser Secure Messenger is a messaging application that leverages blockchain technology to provide a highly secure and anonymous communication experience. It offers encrypted chats, video calls, voice calls, and file sharing, all protected by military-grade encryption and decentralized key management.

### How does Crypviser ensure security and anonymity?

The app uses blockchain technology for decentralized encryption keys and authorization algorithms, eliminating threats like Man-in-the-Middle attacks. It does not require a phone number or SMS verification, ensuring user anonymity. Messages are end-to-end encrypted with advanced cryptographic protocols.

### What kind of content can I share with Crypviser?

You can share text messages, photos, videos, and other files without any size restrictions. All shared content is encrypted and private, ensuring it reaches its destination unfiltered and unblocked.

### Does Crypviser support multiple devices?

Yes, Crypviser offers multi-device support, allowing you to use the same encrypted messenger account across different devices. Your private messages and information are securely synchronized across all your devices while remaining protected in encrypted mode.

### Is Crypviser Secure Messenger free to use?

Based on the provided information, Crypviser Secure Messenger is available for free. It does not have in-app purchases or advertisements, indicating a free monetization model.

## Version history (last 5 releases)

### 2.30 — 2024-02-01

- Updated security certificates 
- Updated frameworks 
- Bug Fixes

### 2.27 — 2022-11-21

This is an IMPORTANT update required for continue 
using the Crypviser Secure Messenger

- Security certificates update for messaging 
- Security certificates update for voice - and video calls 

Bug fixes:
- Fixed color overlapping of the screen header when sending a file in the chat window

### 2.25 — 2021-12-29

A new FREE public version of the Crypviser Secure Messenger!
Subscriptions have been removed. Upgrade to use Crypviser completely for free. 
Stay secure with Crypviser in the New Year. 
Happy New Year 2022!

### 2.24 — 2021-11-20

-Security certificates renewal 
IMPORTANT! Pleasе update to keep using Crypviser Secure Messenger

### 2.23 — 2021-10-07

-Fixed UI issue with cutting messages in the chat window
-Fixed bug with selecting multiple messages in the chat
-Other regular improvements and fixes

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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 2026-08-28.*