Yes, 15 Puzzle is completely free and it doesn't have any in-app purchases or subscriptions.
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15 Puzzle is free.
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Great app: simple, works well, no ads or data collection. It might be better to have the numbers just flash once to show that the puzzle has been solved, rather than counting up through all the numbers (which takes a little too long), but still great! Thanks!!
It is a great game. But there is no need to enumerate all the numbers once finished. It takes time for nothing.
