Lucidly is an AI-based lucid dreaming app designed to help users recognize dream states during sleep. It collects health readings via Apple Watch during the user's sleep and uses an artificial neural network to evaluate the data to determine whether the user has entered the rapid eye movement (REM) sleep stage. When REM is detected, the watch triggers haptic (tactile and/or sound) signals as an alert. Users can choose to try to recognize the signal within the dream, or after waking, re-enter REM sleep through any lucid dream induction method.
In terms of main capabilities, Lucidly supports multiple lucid dream induction techniques: Wake Back To Bed (WBTB), Wake Induced (WILD), Dream Induced (DILD), and Dream Exit Induced (DEILD). The app opens the internal mechanisms of machine learning to users, allowing adjustment of parameters such as thresholds, alarm duration, and haptic feedback to customize according to individual effectiveness.
In terms of usage, an Apple Watch and an iOS device are required. Users can use it after subscribing to a monthly or annual plan, with no registration required, and can cancel at any time. The app has no free tier, but offers a 7-day promotional trial period, during which it can be experienced for free. After canceling the subscription, it can still be used until the end of the current billing cycle.
Applicable scenarios include users interested in lucid dreaming, hoping to enhance creativity, improve problem-solving ability, engage in skill training, emotional healing, overcome nightmares, reduce anxiety and stress, promote personal growth and self-awareness, and explore spirituality.
In terms of limitations, Lucidly uses an artificial neural network for REM prediction, and prediction accuracy and predictive capability may vary from person to person and from night to night. Incorrect REM predictions may cause feedback to be emitted during deep sleep or light sleep close to wakefulness. In addition, even if the feedback is triggered within a dream, it cannot be guaranteed that the user will recognize it as an external signal indicating a dream state. The app requires an Apple Watch to be used together, and it is a paid subscription model, with no free tier currently available.
