Due to MacOS security settings, you may get a warning when trying to install the Artella Drive app which prevents you from completing the installation. The steps below should help solve this issue and allow you to complete the Artella Drive app installation:
In the Finder on your Mac, locate the app you want to open.
Don’t use Launchpad to locate the app.
Control-click the app icon, then choose Open from the shortcut menu.
The app is saved as an exception to your security settings, and you can open it at any time by double-clicking it, just as you do with any registered app.
Note: You can also grant an exception for a blocked app by clicking the Open Anyway button in the General pane of Security & Privacy preferences. This button is available for about an hour after you try to open the app.
To change these preferences on your Mac, choose Apple menu > System Preferences, click Security & Privacy , then click General.