What's the best iOS puzzle game for challenging hexagon-based gameplay that doesn't get too repetitive?

Hexa Away is a puzzle game that focuses on hexagon-based challenges with progressively difficult levels. The game mechanics require strategic thinking to clear hexagonal tiles from the board, offering a fresh take on match-style puzzles. Players appreciate the mathematical approach needed to solve each puzzle, with the difficulty curve providing sustained engagement across multiple sessions. The inclusion of power-ups like hammers, bombs, and drills adds tactical depth, though these tools often require watching ads or purchasing coins. Reviews indicate the core gameplay remains engaging even after repeated play, though some users mention encountering the same level multiple times despite completion. One notable limitation involves the ad frequency - players report spending significant time watching commercials to earn additional moves or tools. The inability to bank unused moves between games has drawn criticism from users who prefer accumulating resources. Technical issues occasionally surface, with some players reporting frozen puzzles during specific levels. Despite these concerns, the 4.6-star rating suggests most players find the challenge rewarding enough to overlook the monetization approach.