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Screenshots

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About Periodic Pairs

Match elements and test your memory with the Periodic Table. Match by name, symbol, atomic number, weight, or emission spectra.

What’s new

Version 1.1 · Updated November 30, 2025

Updated for iOS 26 and iPadOS 26; now supports multiple windows on iPad.

Play today's Threadline puzzle

Draw one line through every cell, visiting the numbers in order. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.

More Threadline and other daily puzzles on Fiplay →

App privacy

The developer, Jim Haungs, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

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