Cellcrypt Enterprise4.91.1 - App Store

SECURE COMMUNICATIONS WITH POST-QUANTUM PROTECTION

*Can only be used with a Valid Enterprise Licence.*

End-to-End Encryption with Post-Quantum Protection for Secure Voice, Video, Messaging, and File Transfers Protecting Sensitive to Highly Classified Government Communications Worldwide.

Secure Instant Messaging

Need to send a large file (500MB+) securely? No Problem.

Cellcrypt Enterprise delivers military-grade encryption for private messaging, facilitating the seamless and secure exchange of files and ideas.

Share photos, videos, voice notes and files effortlessly. Each message and file you send is safeguarded by a unique encryption key, providing unparalleled end-to-end security.

Cellcrypt Enterprise enhances your collaborative efforts by allowing the creation of group chats for private messaging and file sharing directly within the app. These features boost productivity and foster secure, efficient communication within your enterprise.

Secure Voice and Video Calls

Calls are safeguarded with end-to-end encryption and signal obfuscation, providing the highest level of security through your mobile device's data connection.

But it's not just about securing your calls; it's about enhancing your communication experience. Cellcrypt Enterprise's cutting-edge phone call encryption codecs ensure high-definition call quality, optimizing data and battery usage even across the most austere, low-bandwidth, mobile/wireless networks.

Cellcrypt Enterprise supports secure calling over an extensive range of IP-based networks, including Wi-Fi, 5G, 4G/LTE, 3G/HSDPA, and satellite networks. Mutual authentication of all call participants eliminates any potential risks associated with Caller ID spoofing and Man in The Middle (MITM) attacks.

Secure Conference Calls

A conference bridge can be established instantly by creating a group of contacts and hitting the call button. With only mutually authenticated, authorized users, Cellcrypt Enterprise conference calls eliminate the need for participant PINs and passwords.

Work Anywhere, on Any Device

Cellcrypt Enterprise can be downloaded instantly for immediate use with no additional hardware dependencies.

End-to-End Encryption

Cellcrypt Enterprise uses double-layer encryption in an end-to-end configuration, with a new key for every call and message. The system is modular and adheres to best practice cryptographic standards/protocols, powered by a robust crypto core. With Cellcrypt Federal, data is secured end-to-end using advanced Elliptic Curve and Symmetric-Key Cryptography.

For post-quantum protection, the underlying cryptography is overlaid with state-of-the-art Post-Quantum Cryptography algorithms for voice, video, messaging, and file transfers.

International Security Standards

Cellcrypt Enterprise is designed to meet the highest international security standards and is trusted by governments worldwide for protecting their most sensitive communications.

Developed by an international team across multiple countries, Cellcrypt Enterprise represents a truly global solution for secure communications.

Version History - Bug fixes 4.91.1 Jan 31 - Improvements to onboarding experience 4.91.0 12/04/2025 - Fixed calling issues when connecting directly via LAN 4.90.0 11/18/2025 - Fixes background crashes 4.89.1 11/10/2025 - Encrypted application logs 4.89.0 11/04/2025 - Fixes for preventing call drops 4.88.3 10/26/2025 - Upgraded crypto core 4.87.1 10/15/2025 - fixed a crash when opening groups 4.82.5 12/26/2024 - Hotfix for crash on open 4.70.4 07/15/2024 Bug fixes 4.70.3 07/15/2024 - Fixed an issue that prevented voice notes to be sent on Iphone 14+ 4.70.2 07/14/2024 - stability improvements 4.69.0 07/11/2024 - core upgrades for video and voice calls
- bug fixes 4.68.0 07/09/2024 What is new
Updated permission request when adding new contacts for the first time

Bug fixes
Fixed call quality issues
General stability improvements 4.54.0 01/23/2024 Bug fixes
Fixed call quality issues
Fixed overall app stability issues 4.52.1 12/30/2023 Bug fixes
Fixed an issue where the app keeps retrying to send message for deleted users 4.49.1 11/11/2023 What is new
Password verification and constraints adjustments
In-app purchase and Single Sign On for Seecrypt app

Bug fixes
Fixed an issue where the call button was displayed on connecting screen
Fixed an issue where a call would stay on connecting if answered after a call when the device was locked
Fixed an issue where the app is not able to finish the current call if receiving a call from another contact while in background
Fixed a crash when user changes from Wifi to mobile data multiple times
Fixed bluetooth sometimes buzzing while in call 4.49.0 10/17/2023 Bug fixes
Fixed crash when setting message status 4.46.2 08/13/2023 What is new
Update Call Manager
Update Cellcrypt to Cellcrypt Enterprise
Update Seecrypt to Seecrypt Enterprise

Bug fixes
Fixed an app freeze when the user receives a call while the app was finishing the previous one.
Fixed mute call issues related to double clicking the call kit and app answering button.
Fixed issues related to answering a call from a locked screen.
Fixed mute call issues when the call is conducted through a locked screen.
Fixed an issue where the client becomes unavailable after finishing a call and locking the device’s screen.
Fixed issues related to call results reported by the app.
Fixed issues related to finishing a call while in a poor Wifi.
Fixed issues where the app sustains a call even after it has finished.
Fixed call connection issues when the app is running in background.
Fixed issues related to not receiving call pushes.
Fixed crashes when failing stablishing a video call. 4.46.1 08/08/2023 Updates and fixes 4.42.2 04/25/2023 What's new
Updated to VPhone 24.15.1
Updated application icons
Replaced reachability service by network monitor for detecting network changes

Bug fixes
Fixed an issue where calls are not working properly using a specific bluetooth device
Fixed an issue where bluetooth is not working in some cars
Fixed an issue where sometimes application has UI glitches on chat screen
Fixed an issue where some toggles switches in "Preferences" are not working
Fixed an issue where sending camera generated attachments causes the app to crash when call history is disabled
Fixed an issue where callee receives Busy tone when rejecting a Call
Fixed an issue where DNS cache was causing the app to go offline 4.28.3 03/11/2023 What's new
Updated to VPhone 24.15.1
Updated application icons
Replaced reachability service by network monitor for detecting network changes

Bug fixes
Fixed an issue where calls are not working properly using a specific bluetooth device
Fixed an issue where bluetooth is not working in some cars
Fixed an issue where sometimes application has UI glitches on chat screen
Fixed an issue where some toggles switches in "Preferences" are not working
Fixed an issue where sending camera generated attachments causes the app to crash when call history is disabled
Fixed an issue where callee receives Busy tone when rejecting a Call
Fixed an issue where DNS cache was causing the app to go offline 4.28.2 12/29/2022 What's new
Updated to VPhone to 24.13.6
Updated Set PIN Lock screen
Updated export attachment warning text

Bug fixes
Fixed an issue where attachments and calls would fail after a certain amount of calls
Fixed an issue where the app would spam key after login
Fixed an issue where call is ending by itself
Fixed an issue where some messages are not being updated with delivered tick 4.21.2 12/13/2022 Bug fixes
Fixed an issue where sometimes application does not connect after entering foreground 4.16.2 11/16/2022 What's new
Updated to VPhone 24.12.16

Bug fixes
Fixed an issue where app crashes while user browsers it after importing backup on fresh install or after clear data
Fixed an issue where app is taking too long to connect, after changing the WiFi 4.16.0 11/03/2022