Frequently Asked Questions

Need Some Help?

Send email to and we’ll write back as quickly as possible. Or discuss the issue with fellow customers in the Zengobi Forums.

Lost Your License Key?

Fill out this form and we’ll email it back to you in a flash. Note this only works for products purchased from our Zengobi web store, not from the Apple Mac App Store which has its own integrated receipt mechanism.

Installing Curio

Downloading and Installation

  1. Using your browser, download Curio from the Zengobi website.
  2. Simply launch Curio from your Downloads folder and Curio will ask you if it should move itself to the Applications folder. If an existing Curio app with a different major version is already in your Applications folder then that app will be renamed to include its version number ("Curio 8") before the move occurs. Alternatively, you can manually drag-and-drop the Curio application from that folder to your Applications folder to install it.

Access to Contacts, Calendar, and Reminders

When you first launch Curio, the OS may ask if Curio can have permission to access your Contacts, Calendar, and Reminders.

Curio uses the Contacts framework so it can populate your project’s Resources inspector with your name and email to use as a default resource. We also use the Contacts framework when you double-click a dragged-in contact so we can launch Contacts and show that contact to you. That’s it. We do not scan your contacts for any nefarious marketing reasons or to send any contact information to Zengobi’s servers.

Calendar and Reminders
Curio can sync your tasks with Calendar and Reminders however you will need to give permission for this to occur.

Permissions for all of this can also be enabled or disabled via System Preferences > Security & Privacy > Privacy.

Looking for an Old Product?

Here are the latest versions of our major releases if you need to restore a previously purchased product.
If you lost your old license key we can send it to you.

Curio 10Release Notes
OS X Yosemite (10.10) → macOS Sierra (10.12)
Curio 10.3.1
Curio 9Release Notes
OS X Mavericks (10.9) → OS X El Capitan (10.11)
Curio 9.4.8
Curio 8Release Notes
OS X Lion (10.7) → OS X Yosemite (10.10)
Curio 8.6.4
Curio 7Release Notes
Edition OS X Leopard (10.5) → OS X Mountain Lion (10.8)
ProfessionalCurio 7.4.4 Pro
StandardCurio 7.4.4 Standard
CoreCurio 7.4.3 Core
Curio 6Release Notes
Edition OS X Leopard (10.5) → OS X Snow Leopard (10.6)
ProfessionalCurio 6.4 Pro
StandardCurio 6.4 Standard
Curio 5Release Notes
Edition OS X Leopard (10.5) → OS X Snow Leopard (10.6)
ProfessionalCurio 5.4.7 Pro
StandardCurio 5.4.7 Standard
Curio 4Release Notes
Edition OS X Leopard (10.5) → OS X Snow Leopard (10.6)
ProfessionalCurio 4.2.4 Pro
StandardCurio 4.2.4 Standard
K-12Curio 4.2.4 K12
Curio 3Release Notes
Edition OS X Leopard (10.5) OS X Panther (10.3) → OS X Tiger (10.4)
ProfessionalCurio 3.2.4 ProCurio 3.2.2 Pro
HomeCurio 3.2.4 HomeCurio 3.2.2 Home
K-12Curio 3.2.4 K12Curio 3.2.2 K12
BasicCurio 3.2.4 BasicCurio 3.2.2 Basic