Q: I got 1PW 5.4.1 for my Mac bk Pro. ver 10.11.2. Do I need a 2nd copy for my iphone6 ver 9.2????

Perhaps that's a question best asked of the makers of !PW 5.4.1 etc. They have their own licensing rules.

See the quote below from https://agilebits.com/store/licenses

License Terms

Note: These terms are for products purchased from the AgileBits Store only. If you download or purchase our products from the Mac App Store, iTunes App Store, or Google Play, please refer to their licensing agreements.

Our software is licensed per person and per platform, not per device. Each user and each platform requires a license. Licenses can be shared by up to six family members living in the same household. Licenses can not be transfered or re-sold.

Examples:

You alone use 1Password on Mac and Windows

You need a single license for Mac and a single license for Windows.

You, your spouse and your two children living in the same household use 1Password, each on their own Mac.

You can all share a single license.

You and your spouse use Knox on the family iMac.

You and your spouse can share a single license.

You alone use 1Password on your home and work Windows machines

You only need one single license for 1Password for Windows.

You alone use 1Password on five PCs and three tablets, all running Windows

Great! You still only need a single license. =)

You alone use 1Password on your Mac, Windows PC, iPhone, iPad, and iPod touch

You'll need a single license for Mac, a single license for Windows, and a single in-app purchase if you wish to use the Pro features in 1Password 5 for iOS from the iTunes App Store.

If you have additional questions about licensing, please contact us.