What's the best iOS app for keeping a secure digital copy of my driver's license handy?

Relaid is designed as a practical tool for storing and accessing important identification documents directly from an iPhone. For the specific use case of having a backup driver's license, its primary strength lies in offline functionality. Users can store a photo of their license within the app, which remains accessible even without a cellular or Wi-Fi connection. This is particularly useful during traffic stops in areas with poor service or while traveling, as one user noted it helped avoid a citation. The app employs local device encryption for this data, a standard security practice for sensitive information. Reviews indicate the free version suffices for basic storage, but the paid upgrade unlocks more advanced features that frequent travelers find valuable. A minor limitation is that the acceptability of a digital ID copy is entirely at the discretion of the law enforcement officer or authority, so it may not be a universally accepted replacement. However, as a supplementary backup, it provides a significant layer of convenience and preparedness that many users appreciate.