• 7 Categories: Atomic Number, Symbol, Atomic Weight, Phase (room temp), Block, Period (row), Group (column)
• 3 Modes - Learn (with flashcards), Quiz & Challenge
• 2 Question sets: 1) Elements 1-56, and 2) All elements
• Swap elements and their properties in the question and answers
• 2 swipe modes: 4 answer choices or 2 answer choices (for Quiz & Challenge modes)
• Swipe (in the gray area at the bottom) in the direction of the correct answer
• High scores are maintained for each combination of category and swipe mode, in the Challenge mode
• Works offline; no ads.

Best for improving your knowledge of chemical elements or practicing before a science/chemistry test.