# Sleep Cue vs Lucidly

The clearest difference is review sentiment: Sleep Cue at 100% against Lucidly's 44%. Sleep Cue also leads on rating (5.0 vs 3.3) and in-app purchases (none vs 2). Lucidly's advantage is update cadence (weekly vs every 3 months) and ratings volume (18 vs 4). On price, ads and device support there is nothing between them.

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

Sleep Cue holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 4 and 18 respectively. Written reviews point the same way: 100% of Sleep Cue's written reviews are positive against 44% of Lucidly's.

Sleep Cue ships an update every 3 months, Lucidly weekly. Both last shipped on July 5, 2026.

## The numbers

| Metric | Sleep Cue | Lucidly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sleep-cue/id1508045969/reviews)** | [3.3 (18 ratings)](https://appshunter.io/ios/app/lucidly/id1566419183/reviews) |
| Number of ratings | 4 | **18** |
| Positive reviews | **100.0% of reviews** | 43.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 157 MB | 110 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 9+ |
| Developer | [Enchanted Wave LLC](https://appshunter.io/developer/1452734801) | [5Path LLC](https://appshunter.io/developer/1544734236) |

## What reviewers say

### Sleep Cue

[App page](https://appshunter.io/ios/app/sleep-cue/id1508045969)

This app serves as an interactive companion for a wireless brainwave headband. It displays real-time EEG signals and brainwave power spectrograms, enabling users to trigger custom cues based on sleep stages and brainwave activity for lucid dreaming.

**Highlights:** Real-time EEG signal viewing, Brainwave power spectrogram, Customizable cue triggering, Lucid dream induction techniques, Research collaboration opportunities

**Features:** macOS Compatibility

**In-app purchases:** none


### Lucidly

[App page](https://appshunter.io/ios/app/lucidly/id1566419183)

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:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $5.99 | per month |
| Annual Access | $39.99 | per year |


## Frequently asked questions

### Is Sleep Cue free?

Sleep Cue is free to download, with no in-app purchases.

### Is Lucidly free?

Lucidly is free to download, with in-app purchases available.

### Which has better reviews, Sleep Cue or Lucidly?

Sleep Cue is rated higher. Sleep Cue averages 5.0 out of 5 from 4 ratings, while Lucidly averages 3.3 from 18 ratings.

### Do Sleep Cue or Lucidly have ads?

Neither Sleep Cue nor Lucidly shows ads.

### Which is updated more often, Sleep Cue or Lucidly?

Sleep Cue ships an update every 3 months, and Lucidly weekly. Most recently, Sleep Cue was updated on July 5, 2026 and Lucidly on July 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*