Comparison

Squirrel Chaser vs Cognitive Shuffle

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

Head to head
About

Squirrel Chaser

Assess and improve your cognitive abilities like attention, focus, and reaction time. This app offers a challenging test that measures performance under stress, allowing you to compare your results and track improvements from various methods.

Highlights
  • Cognitive performance testing
  • Attention and focus improvement
  • Reaction time assessment
  • Performance comparison
  • Stress-based testing
  • Visual and auditory input challenges
Features
Read full description

Want to improve your cognitive performance including attention, focus, clarity and reaction time? This app gives you a quick way to test your current state – any time you want. Some people have different life hacks they swear by to improve their attention or focus: exercise, coffee, medication, meditation, etc. However, unless you can see how you actually score, you may only be measuring how you feel rather than how you perform. Here’s your chance to test what is giving you the best improvement and compare your results to either different remedies or to others your age. Have a big test or work project you are working on? Go in mentally prepared knowing you are going to crush it. Unlike games which test your ability to pay attention while you are entertained, the most accurate test of attention/focus measures how long you hang in there when you are under a little stress. This app will require you to focus and make decisions when you are receiving both visual and auditory input. It’s a challenging test and starts with a free 2 minute test for those that have difficulty focusing and progresses up to paid 5-20 minute tests for the most sophisticated gamer. This test does not diagnose or treat any medical disease or disorder. Users are encouraged to seek the input of a licensed medical professional prior to making any medical decisions.

About

Cognitive Shuffle

This app uses a cognitive technique to help you fall asleep faster by listening to random words. It creates simple images in your mind, breaking anxious thought loops and easing you into sleep. Designed for darkness with a pure black interface, it offers a unique approach to combatting insomnia.

Highlights
  • Cognitive shuffle technique
  • Random word visualization
  • Gentle whisper voice
  • Dark interface design
  • Multiple shuffle modes
  • Soundscape mixer
  • Guided breathing exercise
Features
Read full description

Stop counting sheep. Start shuffling words. Cognitive Shuffle uses the cognitive shuffle technique — also known as cognitive shuffling — a method developed by cognitive scientist Dr. Luc Beaudoin — to help you fall asleep faster. Instead of lying awake with racing thoughts, you listen to random, unrelated words whispered at a gentle pace. Your brain creates simple images for each word, naturally breaking anxious thought loops and easing you into sleep. HOW IT WORKS Tap play. A soothing voice whispers a random word every few seconds — "lighthouse… marble… penguin…" — and your mind drifts. Most people fall asleep before the timer ends. WHY IT WORKS When you can't sleep, your brain gets stuck in repetitive worry. The cognitive shuffle gives it just enough to do — visualizing simple, unrelated images — without the emotional charge that keeps you awake. It's like a lullaby for your thoughts. FREE FEATURES - Classic cognitive shuffle with 567 words - Gentle whisper voice - 15-minute sleep timer - Works in the background — set your phone down and listen PREMIUM FEATURES - 4 shuffle modes: classic, letter-based, themed, and silent (on-screen only) - Soundscape mixer: layer rain, white noise, brown noise, and ocean waves - 9 unique voice packs — from deep and calm to soft and story-like - Adjustable word pace to match your relaxation style - Customizable sleep timer (5 to 60 minutes) - Guided breathing exercise to prepare your body for sleep - Sleep insights and trends to track what works for you BETTER THAN SLEEP STORIES & MEDITATION Sleep stories engage your brain too much. Meditation requires practice. The cognitive shuffle is effortless — just listen and drift. It's the sleep aid that works from night one. DESIGNED FOR DARKNESS Pure black interface. No bright screens. No distractions. Just words and sleep. FOR ANYONE WHO: - Lies awake with a racing mind - Has tried white noise and sleep sounds but needs something different - Struggles with insomnia or anxiety at bedtime - Wants to fall asleep without medication Cognitive Shuffle Premium is available as a monthly ($3.99/mo) or annual ($24.99/yr) subscription with a 7-day free trial. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage subscriptions in your Apple ID account settings. This app offers auto-renewable subscriptions. Terms of Use (EULA) apply: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Squirrel Chaser4 screens
Cognitive Shuffle4 screens

Verdict

The call

The clearest difference is ads: Cognitive Shuffle at none against Squirrel Chaser's shown. Squirrel Chaser's advantage is update cadence (every 5 weeks vs every 3 months) and ratings volume (7 vs 1). On price, rating, in-app purchases and monetization model 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. Squirrel Chaser sells 2 in-app purchases, starting at $2.99 per month and Cognitive Shuffle sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Squirrel Chaser against 5.0 for Cognitive Shuffle. That said, the two scores are not equally well evidenced: Squirrel Chaser has 7 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Squirrel Chaser ships an update every 5 weeks, Cognitive Shuffle every 3 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Squirrel Chaser versus Cognitive Shuffle: the parameters behind the verdict, then further details
ParameterSquirrel ChaserCognitive Shuffle
PriceFreeFree
Rating5.0 (7 ratings)5.0 (1 ratings)
Positive reviews80.0% of reviews—
Number of ratings7 — better1
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better17.0
Further details — not scored
Size30 MB106 MB
Age rating17+4+
DeveloperWeVibin IncMax Apps

Customer experience

Squirrel Chaser

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Cognitive Shuffle

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Squirrel Chaser

Subscriptions2
  • Full Access Analysis7 Days trial$2.991 Month
  • Full Access Analysis$34.991 Year
2 purchases

Cognitive Shuffle

Subscriptions2
  • Pro Monthly7 Days trial$3.991 Month
  • Pro Yearly7 Days trial$24.991 Year

Questions

Is Squirrel Chaser free?
Squirrel Chaser is free to download, with in-app purchases available.
Is Cognitive Shuffle free?
Cognitive Shuffle is free to download, with in-app purchases available.
Which has better reviews, Squirrel Chaser or Cognitive Shuffle?
Squirrel Chaser and Cognitive Shuffle are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.
Do Squirrel Chaser or Cognitive Shuffle have ads?
Squirrel Chaser shows ads; Cognitive Shuffle does not.
Which is updated more often, Squirrel Chaser or Cognitive Shuffle?
Squirrel Chaser ships an update every 5 weeks, and Cognitive Shuffle every 3 months. Most recently, Squirrel Chaser was updated on October 14, 2026 and Cognitive Shuffle on October 7, 2026.

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