Preschool is on the horizon: How is your child’s language development shaping up? Use this app to find out!

First Words Checklist is an informal assessment for toddlers with no advertising. The app assesses your child’s knowledge of over 100+ common words in important categories like food, clothing, and household items. Parents can use the assessment results to pinpoint areas of strength and weakness in a child’s vocabulary.

Developed by cognitive scientists, the app is ideal for parents, speech therapists, and homeschoolers who want to better understand a young child’s speech and language development. The digital assessment is specially designed for 2-3 year olds. Compared to a traditional paper assessment, it is both more engaging for a child and less onerous to administer for a parent.

Cognitive ToyBox is committed to developing science-backed games to support the early learning and cognitive development of children. Please contact us at with any questions or feedback.

First Words Checklist is not intended to replace trained speech and language professionals.

Try it for free! The first two categories are free for everyone.

What's New

Version 2.4

Added two new math assessment categories: Number words and number quantities.

Ratings and Reviews

Awesome word app for kids


Kids will love this app! Hope to have future update with even more words soon.

Fun app


My daughter loved this app, and it was interesting for me to see the words she didn't know


Cognitive ToyBox, Inc.
99.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© Cognitive ToyBox, Inc.
In-App Purchases
  1. All-Categories Upgrade $9.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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