What Makes an International Driving Permit Different From a Translation App

While a translation app can help explain a document's contents on the fly, it doesn't carry the same recognized, standardized status that a formal international driving permit does with rental agencies and authorities. The permit's value comes from its consistent format being recognized ahead of time, not from an on-the-spot explanation.

For situations where documentation needs to be quickly verified, a standardized physical document tends to move things along faster than an improvised translation.