Airports have the worst Wi-Fi on earth. Prepare for offline.
- Google Translate: download the language pack before departure. Camera mode reads foreign forms without a connection.
- Google Maps: download the offline map of your destination city.
- Files or Drive: keep passport scans and visa approval PDFs saved for offline access.
- Your airline app: boarding passes work offline once downloaded.
- XE Currency: offline mode for fee math at the border.
Sources: U.S. State Department, IATA Travel Centre
Offline visa apps keep your documents readable when airport wifi dies.
The offline drill, done the night before: open each app, confirm the files are actually downloaded (not just listed), and screenshot the visa approval as a backup. Thirty minutes of prep beats thirty minutes of panic in an immigration hall with one bar of signal.