With Google Authenticator, you can synchronize your verification codes across all your devices, simply by signing in to your Google Account. Tip: To use this feature you must have: Version 6.0 or above on Android; Version 4.0 or above on iOS; Google encrypts Authenticator codes both in transit and at rest across our products. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.