What's the best iOS game for addictive number merging with endless progression?

Number Master is an engaging arcade-style game that combines running mechanics with number merging puzzles. Players control a character that automatically runs while collecting and merging numbered objects to create higher values. The core gameplay involves strategic merging during continuous movement, requiring quick thinking and planning ahead. Each successful merge increases the player's score while the running pace gradually intensifies, creating a satisfying balance of strategy and reflex-based action.

The game features multiple power-ups and special items that can help overcome challenging sections, along with colorful visuals and smooth controls. Users report the progression system provides a compelling reason to keep playing, with many mentioning sessions lasting several hours. However, some reviews indicate the difficulty curve can be quite steep, particularly when attempting to reach higher number targets like 777X. The free version includes occasional ads between levels, which some players find moderately intrusive but acceptable given the game's zero cost.

While the core mechanics are simple to understand, mastering the timing and strategy required for high scores presents a significant challenge. The game's 14+ age rating has drawn some criticism from younger players with device restrictions, though the mathematical nature of the gameplay likely justifies this classification. For players seeking a number-based puzzle game with endless replay value and gradual skill development, Number Master delivers a polished experience with few major flaws beyond the expected free-to-play limitations.