Very few students enjoy doing spelling practice but Vocabulary Spelling City allows you to transform spelling drills into something that they will enjoy doing.  On the app, students can practice sample word lists organized by grade level and complete fun word games like hangman and scrambles and complete spelling quizzes.  If a teacher registers for an account, they can create their own spelling lists and assign them to students to practice using the same game-based drills.

Website: https://www.spellingcity.com/, app also available
Subject: Spelling
Grade Level:K-12
Price: Free for basic features, paid membership for $2 or less per student