- 100 more puzzles, 15 of them hard, now unlock right in this app with one purchase. Your streak and history stay. The first 100 puzzles stay free. - Hard Only grows from 36 to 51 puzzles once they are unlocked. - New on the Practice and Progress tabs: see how many puzzles you have practised.

17 new hard puzzles, bringing the total to 100 and the hard tier to 36. They are in visual languages the app did not speak before: cube nets: which cube folds from this net? cancelling grids: two patterns superimpose and shared cells disappear number matrices and number wheels counts that add or subtract across a row New Hard Only mode goes straight at the top tier instead of waiting for a hard item to come up. Every hard item is verified to have exactly one defensible answer, and every answer still explains its rule.

18 new hard puzzles, bringing the total to 83. Someone commented that the puzzles were too easy. Fair: everything was starter or medium, because iQz is built as a daily habit rather than a test. But that left no ceiling, so there is now a harder tier. The new items are structurally different, not just busier. Instead of a progression you continue, the missing cell is a function of the other cells in its row: - counts that add or subtract across a row - symbols that cancel out when both cells carry them - grids running three independent rules at once Every one is verified to have exactly one defensible answer, and every answer still explains its rule.

Completely rebuilt. iQz is now a dedicated IQ and reasoning trainer: 65 original reasoning puzzles across five thinking types, replacing the old general-knowledge quiz Visual matrix and sequence puzzles with tappable picture answers Every answer now explains the underlying rule New optional pace timer and progress tracking Fully offline, and ads removed entirely