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1Password for Mac

Requires OS X Yosemite or later.

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OS X 10.9 Mavericks
OS X 10.8 Mountain Lion
Get 1Password 4.4.3
OS X 10.7 Lion
OS X 10.6 Snow Leopard
Get 1Password 3.8.22

1Password for Windows

Requires Windows 7 or later.

Download Download beta Get 1Password 4 (standalone version)

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1Password for Android

Available for Tablets and Phones running Android 5.0 or later.

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1Password for iOS

Available for Apple Watch, iPhone and iPad running iOS 11 or later.

Get it on the App Store