Apps Like HydrogenGame for iPhone and iPad
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Ranked alternatives
Showing 341–360 of 1,000 ranked alternatives.


Celestial Assault: Reloaded HD
Lucid Vision Games
Save humanity from alien scourge.
The app combines retro side-scrolling shooter gameplay with RPG elements. Players level up their spaceship, unlock weapons and skills, and complete missions to defeat alien enemies.






Chemistry Master Periodic
Carlo Terracciano
Solve chemistry problems with AI guidance
Solve chemistry problems with instant step-by-step solutions. Balance chemical reactions automatically. Receive detailed explanations for each step. Create and edit chemical equations with AI assistance. Share solutions and explanations with others.




Elements Academy: Play & Learn
Xiang Dong
, track progress, and master the periodic
The symbols, names, atomic numbers, and positions of all 118 through 78 levels and 36 challenges. Complete 9 modules covering element categories and a final module reviewing all . Track progress and reinforce knowledge with structured training.








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