Comparison

睡眠ドッグ vs Cognitive Shuffling Nem Sleep

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

Head to head
About

睡眠ドッグ

Features
Read full description

ドッグを育てながら、睡眠時間にスマホをロックするアプリです。iOSのスクリーンタイムを利用して使用できるアプリを制限します。

About

Cognitive Shuffling Nem Sleep

This app uses a scientifically validated technique with randomized word prompts and calming music to help quiet racing thoughts and promote restful sleep. Customize playback speed, background sounds, and set a sleep timer for a distraction-free experience.

Highlights
  • Cognitive Shuffle Technique
  • Randomized soothing word prompts
  • Customizable playback speed
  • Relaxing background music
  • Sleep timer
  • Dark-mode UI
Features
Read full description

Cognitive Shuffling, backed by research from Dr. Luc Beaudoin, helps your brainExperience restful sleep with the Cognitive Shuffle Sleep Method, a scientifically validated technique pioneered by cognitive scientist Luc Beaudoin. This innovative approach eases your mind into relaxation and slumber using randomized soothing word prompts and calming background music. Simply choose your preferred speed, set the timer, and allow our carefully crafted audio experience to guide you gently into restful sleep. Key Features: - Cognitive Shuffle Technique: Randomized soothing word prompts scientifically shown to quiet racing thoughts and promote natural sleep. - Customizable Playback: Select from multiple speed modes—Slow, Normal, Fast, or Random intervals. - Relaxing Background Music: Loop high-quality ambient sounds with fully adjustable volume. - Sleep Timer: Easily set and adjust your preferred duration with automatic playback stop. - Premium Options: Unlock extensive vocabulary, continuous background playback, and additional sleep-enhancing features. Our intuitive dark-mode UI ensures a calming, distraction-free experience optimized for nighttime use. Try it today and significantly improve your sleep quality.- Give your restless mind something gentle to chew on, and let Sleep take over. Terms of Use: This application is licensed under Apple’s Standard End User License Agreement (EULA). For more details, please refer to the following link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

睡眠ドッグ2 screens
Cognitive Shuffling Nem Sleep3 screens

Verdict

The call

The clearest difference is in-app purchases: 睡眠ドッグ at none against Cognitive Shuffling Nem Sleep's 1. 睡眠ドッグ also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). Cognitive Shuffling Nem Sleep's advantage is iOS requirement (13.0 vs 17.0). On price and device support 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. Cognitive Shuffling Nem Sleep sells 1 in-app purchase, starting at $1.99 per month. 睡眠ドッグ asks for nothing beyond the download.

UpkeepUpdate frequency

睡眠ドッグ ships an update every 2 weeks, Cognitive Shuffling Nem Sleep every 2 months. The most recent releases landed on November 12, 2026 and November 8, 2026 respectively.

Scorecard4 real differences · 6 level
睡眠ドッグ versus Cognitive Shuffling Nem Sleep: the parameters behind the verdict, then further details
Parameter睡眠ドッグCognitive Shuffling Nem Sleep
PriceFreeFree
Rating—3.3 (3 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size9 MB98 MB
Age rating9+4+
DeveloperHayato KitaokaKoji Minoda

In-app purchases

None

睡眠ドッグ

No in-app purchases

1 purchases

Cognitive Shuffling Nem Sleep

Subscriptions1
  • プレミアムプラン7 Days trial$1.991 Month

Questions

Is 睡眠ドッグ free?
睡眠ドッグ is free to download, with no in-app purchases.
Is Cognitive Shuffling Nem Sleep free?
Cognitive Shuffling Nem Sleep is free to download, with in-app purchases available.
Do 睡眠ドッグ or Cognitive Shuffling Nem Sleep have ads?
Cognitive Shuffling Nem Sleep shows ads; 睡眠ドッグ does not.
Which is updated more often, 睡眠ドッグ or Cognitive Shuffling Nem Sleep?
睡眠ドッグ ships an update every 2 weeks, and Cognitive Shuffling Nem Sleep every 2 months. Most recently, 睡眠ドッグ was updated on November 12, 2026 and Cognitive Shuffling Nem Sleep on November 8, 2026.

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