Using Nautical Flags
Nautical Flags is a study and reference aid. It is not for real signalling, navigation or maritime safety. The current official International Code of Signals and your flag state’s rules apply at sea.
Flags
The Flags tab shows every flag, drawn in code from published descriptions of the Code’s flags: the 26 letters, the numeral pennants, the answering pennant and the three substitutes. Search by letter, name or a word from a meaning, or pick Letters, Numbers or Pennants. Tap a flag for its name, meaning, Morse and colours; tap it again or use the close button to dismiss it.
Quiz
The flag quiz is 10 questions: name a flag, say what it means on its own, or pick the flag for a meaning. The results list the flags you missed. Nothing is timed in the free quiz.
Spell
Type a word and each letter appears as its flag; a space starts a new hoist. Save as image prepares a picture you can share through the Android share sheet (a download on the web).
Morse
The Morse tab lists every letter and numeral with its flag and its dots and dashes.
Free and Pro
Free includes the reference, the flag quiz with results and missed flags, Spell and the Morse table. Nautical Flags Pro is one optional one-time purchase that adds mixed, timed and topic exam sets, a review of only the flags you missed, and progress history. There is no subscription. Everything included from the start keeps working with or without Pro.
Restore a purchase
Open the More tab, then Nautical Flags Pro, and choose Restore purchase. Use the Google Play account that bought Pro and keep the device online while it checks. If checkout was interrupted, choose Restore purchase or Check purchase status before you try to buy again, and do not start another purchase while one is pending.
Your answers
Your answers and rounds stay on this device only; the app has no account, backup or restore. Clear my progress in the More tab removes them and keeps your purchase; clearing the app’s data or uninstalling also removes them. If the app says it could not save a round, nothing was changed: check the free storage on the device and try again.
Contact
Email pierdo.dev@gmail.com with the app version (shown under About Nautical Flags in the More tab), your Android version, what happened and the steps to reproduce it. Never send passwords or payment-card details.