6 Best Apps for Kids to Improve Vocabulary

A rich vocabulary gives children the tools they need to understand the world around them and express their ideas with confidence. The more words a child knows, the easier it becomes to follow stories, grasp new concepts, and communicate clearly in both speech and writing. However, expanding vocabulary isn't always easy. New words can be difficult to remember when they're learned out of context, and traditional study methods often struggle to keep children engaged. That's why vocabulary apps have become such valuable learning tools. By introducing new words through games, challenges, and interactive activities, they help children learn naturally, stay motivated, and build language skills that support success across every subject.

Whether your child is learning their first new words or looking to add more variety and depth to their writing, there are plenty of apps that can help grow their vocabulary. The best ones make learning feel less like studying and more like play, giving kids opportunities to discover, practice, and remember new words wherever they are. To help you find the right fit, we've rounded up six of our favorite vocabulary building apps for kids.

1. Night Zookeeper

Best for ages 6 - 12

With Night Zookeeper, building vocabulary becomes an adventure. Through engaging games, writing activities, and challenges, children discover new words and learn how to use them confidently in their own writing and everyday communication. As they create stories and bring their characters to life through words, they're constantly expanding their language skills in a fun way.

Real tutors provide encouraging feedback on their writing, helping children strengthen their vocabulary with personalized suggestions and guidance. By weaving new words into storytelling and interactive activities, Night Zookeeper keeps kids motivated while helping them develop a richer, more expressive vocabulary.

📱Available on: Tablets, laptops, and PCs via web browser, and as an app for iPhone and iPad via App Store.

💡 Bonus: Try the 7-day FREE trial to see if it’s the right fit:

2. Hangman

Best for ages 7+

A classic word game that's stood the test of time! Hangman is a simple yet effective way to build vocabulary and word recognition skills. Players must guess letters to uncover hidden words, encouraging them to think about spelling patterns, word structure, and context clues.

Because it's quick to play and easy to understand, Hangman is perfect for short learning sessions at home or on the go. Many versions also include themed word categories and varying difficulty levels to keep children challenged as their vocabulary grows.

3. Endless Reader

Best for ages 4-8

Endless Reader introduces children to important sight words and vocabulary through adorable animated characters and interactive puzzles. Each word comes to life with playful animations that help children understand its meaning and remember how it's used in context.

The app's bright visuals and hands-on activities make learning new words feel exciting rather than educational. It's particularly useful for younger children who are beginning to read independently and expand their everyday vocabulary.

4. Merriam-Webster Dictionary

Best for ages 10+

More than just a dictionary, the Merriam-Webster app offers daily word challenges, quizzes, and word games designed to help kids (and adults) expand their vocabulary. Children can explore definitions, synonyms, pronunciation guides, and example sentences to deepen their understanding of new words.

For older learners, it's a fantastic tool for developing academic vocabulary and improving reading comprehension. The app encourages curiosity about language while helping children discover words they may not encounter in everyday conversation.

5. Vocabulary - Learn Words Daily

Best for ages 9+

Vocabulary - Learn Words Daily is designed to help children steadily grow their word knowledge through bite-sized daily lessons. New words are introduced alongside definitions, example sentences, and quizzes that reinforce learning and improve retention.

The app's structured approach makes it easy for children to build a vocabulary habit, while gamified progress tracking keeps them motivated. It's particularly helpful for older children looking to strengthen their reading, writing, and communication skills.

6. Epic!

Best for ages 5 - 12

Epic! is a digital reading platform packed with thousands of books, audiobooks, and educational videos for children. While it isn't exclusively a vocabulary app, it's one of the best tools for naturally expanding a child's word knowledge. The more children read, the more likely they are to encounter new words, phrases, and expressions in context.

With personalized book recommendations and content tailored to different reading levels, Epic! helps children discover stories they'll love while steadily building their vocabulary and reading comprehension. Features such as read-to-me books and built-in dictionaries make it especially accessible for developing readers.

These vocabulary apps are a great way to help your child become a more confident communicator. Try them out and watch your child's vocabulary grow as they discover and master new words every day!

Don't forget, you can try Night Zookeeper for 7 days with a FREE trial - risk free, cancel anytime!

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