Dr. Gary Brown's Autism/DTT Numbers app uses Discrete Trial Training (DTT) to help your child learn the numbers (0-99) and to learn to count (0-9). (This app is currently English only. Check the support page for more info.)

This app has been tested extensively in Dr. Brown's clinic with children who have autism, ADHD, and other developmental disorders. DTT is not a children's game. It is a therapy based on years of scientific research. DTT is the primary teaching method used in Applied Behavior Analysis (ABA) to teach numerous pre-academic and social skills to children with autism. This app can be used to help teach numbers and counting to children with autism, attention deficit disorder (ADD), or attention deficit hyperactive disorder (ADHD). The apps also can be used by any child who has trouble staying on task.

Finding the right therapy for a child with autism can be overwhelming. Only Applied Behavior Analysis (ABA) has years of scientific research proving its effectiveness and is recommended by The National Institute of Mental Health and the Surgeon General. But caregivers quickly learn that well-trained therapists in ABA are expensive and hard to find. During my forty years of clinical experience as a Licensed Psychologist I have tried to provide low-cost ABA resources for caregivers so they can do their own ABA. ABA and DTT increases your child's likelihood of being mainstreamed, increases happiness, and gives you hope.

Be sure to check out our other DTT and autism apps:
* Autism/DTT Colors
* Autism/DTT Shapes
* Autism/DTT Letters
* Autism/DTT Site Words
* Autism/DTT Animals
* Autism/DTT People
* Autism DX/Treatment
* DTT Pro

What’s New

Version 1.4.8

Updated for iOS8 and iPhone 6 and 6Plus devices.

Ratings and Reviews

Moni4God ,

Mom with an Autistic Special Kid

Thank you Dr. Brown for creating this awesome app. My son 3 years old diagnosed with Autism and Speech Delay is benefiting and learning from this fabulous app.

Mindyloo1814 ,

Complete waste of $

Don't waste your time or money. It only does 2 simple functions and many of the features don't even work! Many of the pictures don't show up. It's essentially useless. Wish I could get a refund.

Carrie Tomlin ,

Love these apps

I have all of the DTT apps. They are awesome. So glad to have them.


Bob Bradley
12.4 MB

Requires iOS 8.1 or later. Compatible with iPhone, iPad, and iPod touch.


English, Simplified Chinese

Age Rating
Rated 4+
© 2012-2015 by


  • Family Sharing

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

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