Bitsboard Spelling BeeInnovative Investments LimitedThe App now includes over 1,000 pre-build spelling lists grouped by grade level and skill, with over 10,000 practice words with pre-recorded audios by grade and level of difficulty, and over 200 spelling lists with crisp photos and illustrations. (In-app purchases)Tags: Literacy, SpellingAvailable For: iPhone (Free)iPad (Free)