Support

Questions, a bug, or an idea? Write to support@polz.in – we usually answer within a few days. If something went wrong in a game, a screenshot helps a lot.

How do hints work?

Tap Hint during a game. A hint has three steps, each costing one credit: where to look, which technique applies, and the full explanation for your board. Stop as soon as you've got it. After the explanation, Apply is free.

Why does a hint say there's a mistake?

If a digit on your board is wrong, or your notes rule out the correct digit in a cell, there is no sound next step to explain. Opening the hint is free; one credit shows where the mistake is.

How do I get credits?

You start with 10 credits. While you have fewer than 5, you get one free credit every day you open the app. Packs of 25, 80 or 200 credits are available in the app.

Are my credits on all my devices?

Yes, if you're signed in to the same Apple ID with iCloud turned on. Credits sync automatically; it can take a moment after opening the app on the other device.

A purchase didn't show up

Open the app again with an internet connection; pending purchases are credited automatically. If credits are still missing, write to us with the date of the purchase – you can find it in the App Store under your account → Purchase History.

What happens when I give up?

The game ends and is counted as given up in your statistics. The solution is not shown – use hints if you want to understand the next step.