Control your Quell device and monitor your pain relief with the Quell app. Tap the Quell complication to open the app. You can then start or stop therapy, increase or decrease intensity, view your therapy schedule, and get status information for your device. If you just want to check the battery level, that is available by glancing at the Quell complication. The app also offers notifications, like an alert when your Quell battery is low or if therapy unexpectedly halted, to make sure you never miss out on pain relief.