AgileBits Inc has released 1Password for iOS 4.5, a major rewrite of its password management tool for iPhone and iPad. The release is accompanied by a less radical, but still relatively major, upgrade to the Mac version with the release of 1Password for Mac 4.3.

The iOS version boasts a complete rebuild with the promise of improved speed and a more accessible Search tool. Support for AirDrop sharing of items and multiple vaults created using the Windows or Mac version have also been added.

The improved Search tool is now always available at the top of both the Categories tab and each main category. Support for AirDrop makes it possible to share items face-to-face with other 1Password users, while the Sharing menu is much more reliable in iOS 7.

1Password for iPad gets a major revamp with the release of version 4.5.

Another new feature is support for editing iPhone item details, while Demo Mode has now been rebranded Demo Vault and moved to allow people to show off the app without revealing any personal information.

Also added is support for multiple Dropbox accounts for syncing vaults as well as the ability to work with – and switch between – multiple vaults via the app’s Settings menu.

The built-in 1Browser app is also improved with a single AutoFill, prompts for opening non-http/https URLs (such as FaceTime calls) and a redesigned tab view.

Improved compatibility with the Windows and Mac versions of 1Password is rounded off with support for custom item images as well as tags, which results in the Folders tab now being renamed to Organize.

Also updated is 1Password for Mac. Version 4.3 extends the 1Password mini add-on so it’s capable of searching everything stored in the user’s vault. Full-screen support has been added along with a large number of new keyboard shortcuts, including the ability to switch vaults.

The Sync and Export tools gain the ability to sync Master Password changes to other devices as well as support for syncing the data file via a USB drive. Users can now export to unencrypted CSV and plain text formats too.

Finally, users also gain the ability to move items between vaults and select items by right-clicking. The update is rounded off by the usual language tweaks and bug fixes.

1Password for iOS 4.5 is available now for iPhone and iPad with a MSRP of $17.99 (for a limited time only, it’s available for just $8.99, a saving of 50 per cent). 1Password for Mac 4.3 is also available for trial download for Macs running OS X 10.8.4 or later. Again, it’s currently available for 50 per cent off the MSRP of $34.99. Other available versions include 1Password for Windows and 1Password Reader for Android.