The Kindle edition of WatchTime can be read on all Kindle devices, such as the Kindle and Kindle Fire, as well as the Kindle app on the following platforms:
- PC (Windows 7, XP, Vista, & 8)
- Mac
- All iOS devices, including iPad, iPhone, and iPod Touch
- Android phones and tablets
- Blackberry
- Windows Phone 7
- Windows Tablet
The Nook version can be read on the following platforms:
- NOOK
- NOOK Color
- NOOK Tablet
- NOOK for iPad
- NOOK for iPhone
- NOOK for Android
- NOOK for Android (Tablet)
- NOOK Study
- NOOK for PC
- NOOK for Mac