Duplicate Stickers in Onzi: How to Track Your Doubles for the World Cup 2026

What counts as a duplicate

The rule is simple: the first copy of a sticker joins your collection and marks that number as owned. From the second copy on, every new one becomes a duplicate — automatically.

No second list, no notebook, no tally on the back of your hand. Any extra copy you add gets set aside as a sticker you can trade, and you don't lift a finger.

How to add an extra copy

You mark a duplicate exactly like you mark any sticker. Onzi sees that the number is already in your collection and drops the extra into your pile of doubles.

• Open the scan camera and point it at the sticker — Onzi reads the team code and number on its own, no typing.
• Tap to confirm and add the copy.
• If that number was already owned, the new copy becomes a duplicate on the spot.
• Do it again for every extra you pull from a pack.

Where to find your duplicates

Onzi keeps a dedicated spot for your doubles, all grouped by national team. One glance tells you which teams you're swimming in and how many spares you're sitting on.

The count shows your total duplicates plus how many of each number — so when you sit down to trade, you know exactly what you can put on the table and won't promise a sticker you don't have.

Keeping the count honest

Traded a double with a friend? Finally stuck down a spare? Just remove that copy and the count updates itself.

Everything lives on your device — no account, no internet. Your duplicate list stays current even offline, ready for the next swap at school, at work, or wherever collectors meet up.

• Remove a copy and the duplicate count drops right away.
• If more than one copy of that number is left, it stays in your duplicates.
• Once only the owned copy remains, the number leaves the doubles list.