Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Comparing Sizes
Pick from aligned objects to compare big and small, long and short, then tap them in size order.
by Anonymous
Units of Length
Read millimeter ticks by placing objects on a 20cm ruler, then see one length as mm, cm, m, and km to pick the unit that fits best.
by Anonymous