Sleep can often be illusive for those with ADHD. This app has received attention from the ADHD field and has science to back up what it promises. You can read more about the science of the app on the Pzizz website. The world’s most advanced sleep and power nap system to fall asleep fast, stay asleep, and wake up feeling refreshed. The app is available for iOS and Android.

Price: Free, with In-App Subscription for premium content and features ($4.99 per month, $49.99 per year, or $119.99 per three years)