Need Some Help?

Send email to and we’ll write back as quickly as possible. Or check out our Forums and ask the Zengobi community.

Looking for an Academic Discount?

With our new simplified pricing, we no longer have a separate academic store. Instead our new, greatly reduced prices are available to all customers.

If you are interested in deploying Curio across your entire K-12 (primary/secondary) domestic or international school, Zengobi now offers a low-cost annual site license program specifically for K-12 schools.

Lost Your License Key?

Fill out the form here and we’ll email it back to you in a flash.

Installing an Older Curio

Mountain Lion


Lion (OS X 10.7.5), Mountain Lion (OS X 10.8), and Mavericks (OS X 10.9) use Apple’s Gatekeeper for application security. This means when first launching Curio 7 or earlier you will need to right-click or Control-click on the Curio icon in the Finder and choose Open, then confirm the launch in the dialog that appears. You only need to do this the very first time you launch it so the OS knows that Curio is trusted.

Access to Contacts

When you first launch Curio on Mountain Lion or Mavericks the OS will ask if Curio can have permission to access your Contacts (what used to be called Address Book). We use the Contacts framework to find out who "me" is, so we can populate your Curio 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 don’t use Contacts for anything else. We certainly do not scan your contacts for any nefarious marketing reasons or to send any contact information to Zengobi’s servers.

Looking for an Old Product?

Here are our prior releases if you need to restore a previously purchased product. If you also lost your old license key we can send it to you.

Curio 7Release Notes
Edition Mac OS X 10.5 (Leopard) → OS X 10.8 (Mountain Lion)
ProfessionalCurio 7.4.4 Pro
StandardCurio 7.4.4 Standard
CoreCurio 7.4.3 Core
Curio 6Release Notes
Edition Mac OS X 10.5 (Leopard) → Mac OS X 10.6 (Snow Leopard)
ProfessionalCurio 6.4 Pro
StandardCurio 6.4 Standard
Curio 5Release Notes
Edition Mac OS X 10.5 (Leopard) → Mac OS X 10.6 (Snow Leopard)
ProfessionalCurio 5.4.7 Pro
StandardCurio 5.4.7 Standard
Curio 4Release Notes
Edition Mac OS X 10.5 (Leopard) → Mac OS X 10.6 (Snow Leopard)
ProfessionalCurio 4.2.4 Pro
StandardCurio 4.2.4 Standard
K-12Curio 4.2.4 K12
Curio 3Release Notes
Edition Mac OS X 10.5 (Leopard) Mac OS X 10.3 (Panther) → Mac OS X 10.4 (Tiger)
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