Games started out very simple. There are bundles or packages of twenty games. You would presume that these bundles will progress from easy to much harder. Not so, games did become larger but never any tougher. Also, the larger bundles were locked. Again the assumption would be that as you work through larger, harder puzzles you will unlock new bundles. Wrong, you need to pay to unlock. $1.99, I dont think so. The possibility of better more challenging puzzles arent there.
Dawggtired about Hashi Puzzles: Bridges Islands