Space Invaders Calculator app for iPhone and iPad

Fun and practical, this calculator is packed with Space Invaders-themed gimmicks and designs!

Instructions:
- The calculator itself functions in the usual manner.
- Touch the Invader in the upper right corner to toggle between color and monochrome displays.
- The musical note in the upper left corner toggles sound effects on and off.

Features:
- UFOs appear when certain numbers appear in the calculator display.
- UFOs appear with results of 50, 100, 150, etc., and special Space Invaders-related numbers. See if you can uncover them all!
- Game sound effects are played when the sound is toggled on. Use care when using the calculator in meetings or other serious settings.

The perfect companions to your iPhone/iPod touch lifestyle!
Free and fun Space Invaders Gizmos now available!
- Space Invaders Calculator -FREE-
- Space Invaders Clock
- Space Invaders Timer
- Space Invaders Flashlight
- Space Invaders Battery Meter
- Space Invaders Memory Checker

Play the Space Invaders games!
- Space Invaders
- Space Invaders Infinity Gene
Now available for the iPhone and iPod touch.