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QTS 5.0.x

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App Center Settings

You can configure the app respository, update settings, and enable installation of apps without digital signatures.

Adding an App Repository

You can add an app repository to enrich the content in App Center. This allows you to download and install apps from third-party sources.

  1. Open App Center.
  2. Click on the toolbar.
  3. Go to App Repository.
  4. Click Add.

    The Add window appears.

  5. Specify the following connection information.
    • Name

    • URL

  6. Optional: Specify the login credentials.
    • Username

    • Password

  7. Click Add.

App Center adds the repository to the list. You can select the repository and then click Edit to modify its settings or click Delete to remove this repository from App Center.

Configuring App Update Settings

  1. Open App Center.
  2. Click .
  3. Go to Update.
  4. Select When updates are available and then select one of the following options.
    Table 1.



    Send a notification

    QTS sends notification messages when updates are available for your apps.

    You can click Configure Notification Rule to create rules in Notification Center. For details, see Notification Center.


    If you select this option, the system will skip the check for updates frequency step.

    Install all updates automatically

    App Center automatically installs all available updates for your apps.

    You can select how often App Center should check for available updates.

    Install all required updates automatically

    App Center automatically installs all required updates for your apps to ensure their functionality, compatibility, and data security.

    You can select how often App Center should check for required updates.

  5. Select an automatic update detection frequency.
  6. Click Apply.

Digital Signatures

QNAP uses digital signatures to validate apps created by QNAP or QNAP-trusted publishers. The use of digital signatures prevent the unauthorized tampering of apps that may lead to security risks.

A digital signature is considered valid if it meets the following criteria.

  • The digital signature has not been tampered with.

  • The digital signature has not expired.

  • The digital signature is certified by QNAP.

Enabling Installation of Apps without Digital Signatures

  • A valid digital signature ensures that an application was created by QNAP or a QNAP-trusted publisher. It also ensures that the app has not been maliciously tampered with. Installing apps without valid digital signatures may expose your NAS to security risks. QNAP shall not be held liable for any damages, data loss, or security vulnerabilities resulting from the installation and use of such apps.

  • App Center never installs apps with invalid digital signatures even if this setting is enabled.

  • Installation of apps without digital signatures is disabled by default in Settings.

  1. Open App Center.
  2. Click on the toolbar.

    The Settings window appears.

  3. Go to General.
  4. Select Allow installation and execution of applications without a digital signature.

    App Center does not allow the installation of apps with tampered digital signatures even when this setting is enabled.

  5. Click Apply.