The Cue Health App is downloaded and installed the same way as other apps on your mobile smart device and should only take a few minutes. Occasionally, the Apple App® Store® or Google Play Store™ might have intermittent delays or other problems. If the problem persists, please contact us at support@cuehealth.com or 833.CUE.TEST (833.283.8378) with details about the problems you are experiencing. Our Customer Support Team will let you know if there are system problems and when to expect them to be resolved, or a team member will help you successfully download the app.