Apps Like Crystal-Math for iPhone and iPad
Crystal-Math screenshots
Ranked alternatives
Showing 321–340 of 1,000 ranked alternatives.


Space Survivor: Alien Attack
Nhu Ut Vo
Survive 5 minutes, upgrade skills, defeat bosses
Survival game allows one-handed gameplay. Players survive for 5 minutes against bosses. Upgrade skills and collect resources to create custom skill combinations. Explore endless challenges with varying difficulty levels.



Sirens Extreme!
The Ritz Acme Ltd Liability Company
Hear sirens with flashing animations.
The app offers 20 siren noises including police, firetruck, and ambulance sounds. Users can activate siren animations and sounds by tapping the screen.

Trestle - The New Sudoku
Noah Gilmore
Build bridges between circles to solve puzzles
Create bridges between circles to fill them. Solve puzzles by connecting circles with the correct number of bridges. Complete all circles to win each level. Features include 700+ levels, beautiful visuals, and updated puzzle rules.







5 Sec Game
SUNIL BACK
Test intelligence with 5-second games.
The app presents over 60 kinds of 5-second games across three difficulty levels. Each category includes 10 five-second games and a boss game, designed to challenge user intelligence.




Word Types | English Grammar
Miaplaza Inc.
Practice
Teaches through interactive type identification games. Includes videos explaining nouns, verbs, pronouns, and adverbs. Helps students build foundational language skills without in- purchases.
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