Listing with iTunes links of medical apps categorized by conditions the app addresses. Feel free to edit, add and comment if you have used a particular app.

Chrohn's and Colitis

Crohn's Toolkit - Helps Crohn's and Colitis patients manage their condition better and communicate with their doctors.

Auditory Impairments

soundAMP - Turns iPhone or iPod Touch into an interactive hearing device

Speech and Communication Issues or Delays

Proloquo2Go - Augmentive and alternative communication system for people with difficulty speaking

iPrompt - One of a number of communication apps for use with children with developmental and language delays

pushApps LLC - Locabulary allows an iPhone user to manipulate the phone's touch screen to call up a menu of words and phrases, with the phone speaking the words. The application is designed so that users can assemble sentences using a minimum number of finger taps and also provides an option for sending completed sentences as text messages.

Autism and Developmental Delays

Behavioral Tracker Pro - Supports tracking behavior and graphing it, including ABC therapy

Step Stones - Visual activity schedule for those with special needs or learning disabilities

Vision Impairments

iHear Dialer - Dial phone numbers by moving your hand on screen while the dialer says the number you are touching.

Eyes Free Adaptive Keypad - Dial contacts by shaking the phone to reach different contacts (limited to six contacts).

iSpectrum Color Blind Assistant - Identifies colors in a photo by name and via RGB components

Diabetes

Glucose Buddy - Diabetes Helper 2.0 - Helps patients manage their diabetes

Diabetes Log - Helps patients manage their diabetes

Diabetes Pilot - Helps patients manage their diabetes

Celiac Disease

Gluten Freed - Gluten Free Restaurant Finder

Gluten Free Restaurant Cards - 40 card images to explain dietary restrictions to restaurant staff.