COMCUBE APPS

Download ComCube Apps

Download the ComCube desktop and mobile apps to communicate securely from anywhere.

App Store

Communicate securely on the go · Keep conversations encrypted, even on the move.

9:41● ● ◕
MessagesCC
Private host connectedYour conversation stays with your team.
The project documents are ready for review.
Perfect. I’ll open them securely now.
Call at 14:30?
Message your team securely
End-to-end encrypted
Your host your control

Having trouble downloading?

Contact our support team and we’ll help you get the ComCube app.

Scan to download from the App Store
SUPPORT

FAQs

Find practical guidance for connecting, using and troubleshooting your ComCube host and app.

01

Network Connection

Host, wired network and SIM connection

Why does the app say the community cannot be found when I use a wired connection?

Confirm that the host ID is correct. Restart the host, check the indicator light, reconnect the network cable and power supply, use the router’s LAN port, and ensure DHCP is enabled.

Why can’t the ComCube host be found when I use a SIM card?

Confirm the host ID, restart the host and wait 2–3 minutes. Check the SIM balance and PIN lock, try another compatible SIM card, and ensure both antennas are securely tightened.

Why does a SIM card inserted while the host is powered on fail to connect?

The host cannot detect a newly inserted SIM card while powered on. Restart the host and allow 2–3 minutes for the connection.

02

Account & Verification

Registration, SMS and virtual accounts

Why does login say that my mobile number is not registered?

Confirm the host ID and check whether the administrator has completed registration or added the account as a member. If registration is allowed, use Register Account on the login page.

Why am I not receiving a verification SMS?

Check that the host is online, confirm the country code, reopen the ComCube app and request a new verification code.

How do virtual accounts work?

Only the account holder can bind a mobile number. Binding enables verification-code recovery if the password is forgotten. Virtual-account users sign in using verification codes.

03

App & Calls

Compatibility and call quality

Why does the ComCube app crash?

Confirm that both the ComCube app and the host firmware are updated to the latest version. Older versions may create compatibility issues.

Why is there interference during calls?

Try calls with different terminals and locations. Move the host away from possible sources of interference, or contact support if device compatibility may be involved.

Why do I hear an echo during a call?

An enclosed calling environment may cause echo. Change the environment and contact support if the issue continues.

Why are calls delayed or stuttering?

This is usually caused by poor or fluctuating network conditions. Wait for the network to stabilize, switch networks, or restart a long call.

04

Files & Support

File transfer and troubleshooting

Why can I send text but not files or videos?

Restart the host, rename the file, check file permissions, try another file, switch sender and receiver, and test another network such as Wi-Fi or mobile data.