You can get the first 6 months free for the new subscription plan as a limited time launch offer until September 21st ($3/month after that).
The company notes that you can cancel at any time and still have access to view and export your data.
Full versions of 1Password usually sell for $64.99 on Mac and $9.99 for iOS devices, but the new $3/month plan lets you download the app to all of your compatible devices and also access all "Pro" features and future updates. There are also new features, like web access through 1Password.com, document storage up to 1GB, and new multi-factor security features that you'll only be able to get with the new subscription service.
Here's what's included:
1Password iOS and Mac OSX apps
Built-in automatic sync across all devices
Data loss protection
Web access to your data on 1Password.com
Item History for restoring deleted or changed items
Secure Document storage
Brand new multi-factor security model