How do I sign in to my account? March 27, 2019 20:03 Updated Follow There is no Tactus Therapy account needed to use our apps. You do need an account with Apple or Google to be able to download our apps from their app stores. Related articles I bought an app for iOS/Android. Do I have to buy it again for the other operating system? How do I buy and download your apps on my Apple device? How do I buy and download your apps on my Android device? How do I setup sending email? Why can't I send email from the app? I bought an app, and it hasn't downloaded or is stuck downloading. What should I do?