Comparison

Lucidly vs LucidCue

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lucidly

This app uses AI and your smartwatch to detect REM sleep. It alerts you during this phase, allowing you to attempt lucid dreaming. It supports various induction techniques and offers two modes for sleep entry or REM detection.

Highlights
  • Real-time REM prediction
  • AI-driven sleep stage detection
  • Haptic and audible alerts
  • Two operating modes (Inference & Hypnagogic)
  • Adjustable prediction thresholds and alerts
  • Session analytics and charts
  • Apple HealthKit integration
Features
Read full description

Lucidly collects health readings while you are sleeping via the watch. The readings are evaluated using artificial intelligence to determine when you have entered rapid eye movement (REM) of your sleep cycle. When REM is detected, the watch will alert you by triggering tactile and or audible signals. The user can attempt to recognize the signal in their dreaming state, or wake up and attempt to reenter REM via any lucid dreaming induction method of choice. Lucidly is the first and only application that specifically targets this phase of the sleep cycle using health readings in combination with machine learning and haptic signaling. The application works well and supports WILD, WBTB, DEILD and DILD induction techniques, and is available in two operating modes: Inference (REM detection and alerts), and hypnagogic (periodic haptics for sleep entry). Lucidly integrates with Apple's health kit for functionality. User permission is required to read and write data. REM prediction is performed by neural networks while the application is in session and the user is asleep. Lucidly has an overall accuracy > 80%. REM inference is an approximation and results may vary. Familiarity and some experience with lucid dreaming induction techniques is recommended before subscribing. Lucidly provides the following features: - Real time REM prediction with auto shut-off tactile and audible signaling. - REM stage determined by artificial neural networks (AI). - Greater than 80% model accuracy. - Two operating modes: Inference and hypnagogic. Modes can run in tandem or independently. - Ability to adjust prediction thresholds, haptics, session and alert durations. - Analytics and charts generated for each session with notification timestamps. - Seamlessly integrates and displays Sleep App metrics. - Ability to playback sessions and test different settings against REM detection models. - No registration required to use the application. - No personally identifying information is collected. - Subscriptions are auto-renewable and can be cancelled any time. - All plans include a FREE 7-day trial. =============== IN-APP PURCHASE: Monthly: $5.99 Yearly: $39.99 ($3.33 / mo) - Payment will be charged to iTunes account at confirmation of purchase. - Subscriptions automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24 hours prior to the end of the current period, and identify the cost of the renewal. - Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. =================== BEFORE YOU SUBSCRIBE: Lucidly requires Apple Watch for functionality. This application will not work without a paired Apple Watch and installed companion Lucidly WatchOS application. Familiarity and some experience with lucid dreaming induction techniques is recommended. Read our Privacy Policy at: https://lucidly-public.s3.us-east-2.amazonaws.com/privacy_lucidly.html Read our Terms of Service at: https://lucidly-public.s3.us-east-2.amazonaws.com/terms_lucidly.html

About

LucidCue

This app helps you achieve lucid dreams by acting as a reality tester. It uses gentle wrist twitches detected by your Apple Watch to confirm wakefulness with a vibration, signaling you're dreaming when it remains silent.

Highlights
  • Gentle wrist twitch reality test
  • Personalized vibration feedback
  • Detects absence of vibration in dreams
  • Seamless Apple Watch integration
  • Modern alternative to traditional methods
Features
Read full description

LucidCue: Reality Test on Your Wrist Unlock lucid dreaming with LucidCue, an Apple Watch app designed as a precise tool to test reality and recognize when you’re dreaming. Inspired by classic reality-testing devices, LucidCue simplifies the process using a gentle wrist twitch — easy to perform, yet powerful in distinguishing wakefulness from dreams. Here’s the method: as you lie in bed, working to fall asleep, occasionally perform a light wrist twitch to test your reality. When awake, LucidCue detects the movement and instantly responds with a personalized vibration, confirming you’re in the waking world. As you slip into a dream, especially during REM sleep, the sensation of moving your wrist feels just as real — but LucidCue stays silent. This absence of vibration is your unmistakable signal: you’re dreaming. LucidCue transforms your Apple Watch into a seamless reality-testing tool, offering a modern, intuitive alternative to traditional methods. Use it to explore your dream world with clarity and control.

Screenshots

Lucidly4 screens

Verdict

The call

The clearest difference is review sentiment: LucidCue at 100% against Lucidly's 44%. LucidCue also leads on rating (5.0 vs 3.3) and in-app purchases (none vs 2). Lucidly's advantage is ratings volume (18 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lucidly sells 2 in-app purchases, starting at $5.99 per month. LucidCue asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LucidCue holds the better App Store score, 5.0 against 3.3. That said, the two scores are not equally well evidenced: Lucidly has 18 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 44% of Lucidly's written reviews are positive against 100% of LucidCue's.

Scorecard5 real differences · 5 level
Lucidly versus LucidCue: the parameters behind the verdict, then further details
ParameterLucidlyLucidCue
PriceFreeFree
Rating3.3 (18 ratings)5.0 (1 ratings) — better
Positive reviews43.8% of reviews100.0% of reviews — better
Number of ratings18 — better1
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod, Apple Watch
Requires iOS13.413.0 — better
Further details — not scored
Size110 MB2 MB
Age rating9+4+
Developer5Path LLCVitaliy Golubenko

Customer experience

Lucidly

All ratings18 ratings
Positive50.0%
Neutral16.7%
Negative33.3%
Written reviews16 reviews
Positive43.8%
Neutral18.8%
Negative37.5%

LucidCue

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Lucidly

Subscriptions2
  • Monthly Access7 Days trial$5.991 Month
  • Annual Access7 Days trial$39.991 Year
None

LucidCue

No in-app purchases

Questions

Is Lucidly free?
Lucidly is free to download, with in-app purchases available.
Is LucidCue free?
LucidCue is free to download, with no in-app purchases.
Which has better reviews, Lucidly or LucidCue?
LucidCue is rated higher. Lucidly averages 3.3 out of 5 from 18 ratings, while LucidCue averages 5.0 from 1 ratings.
Do Lucidly or LucidCue have ads?
Neither Lucidly nor LucidCue shows ads.

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