I found this app when I searched for first grade apps this is geared more towards pre-k, the words are too easy! there is no challenge in this game words are spelled out for the child
Svandr4d about First Words 7+2 · Early Reading A to Z, TechMe Letter Recognition and Spelling (Animals, Colors, Numbers, Shapes, Fruits) - Learning Alphabet Activity Game with Letters for Kids (Toddler, Preschool, Kindergarten and 1st Grade) by Abby Monkey®