One Word App Review

Adobe® Kuler app for iPhone

in • val • u • a • ble   |ĭn-văl’yōō-ə-bəl|

adjective

1. Having great value; priceless.

2. Indispensable; much appreciated: an invaluable service.

–in • val’u • a • bly,  adverb

definition supplied by The American Heritage Dictionary: Second College Edition