Crack vaults with math
Every vault has three locks, and every lock is an equation with its symbols missing. Put the right symbols in place and watch the door swing open.
- 16 locations, from a Paris museum to the temples of Angkor Wat
- 160 vaults, nearly every lock with exactly one answer
- Free Play quizzes that get harder as you go
- No ads, no accounts, no tracking
Free to download with Paris and daily quizzes. Full Heist unlocks the whole world with one purchase.