Comparison

Imprint vs Cortex Flex Performance

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

Head to head
About

Imprint

This app offers bite-sized visual learning sessions on a wide range of topics, from psychology to finance. Master complex concepts quickly with elegant visuals and retain knowledge through daily quizzes. Save and review key insights in sessions lasting two minutes or less.

Highlights
  • Bite-sized visual learning
  • Master essential topics
  • Understand complex concepts
  • Daily retention quizzes
  • Save and review insights
  • Short learning sessions
Features
Read full description

Imprint is your visual guide to the world's most important knowledge. - Master essential topics in psychology, philosophy, history, finance, leadership, business, health, science, technology and more. - Understand complex concepts quickly, with elegant visuals that clarify key ideas and help you stay focused. - Take challenging daily quizzes that help you retain what you've learned. - Save and review the insights and visuals that matter most to you. - Complete a chapter in two minutes or less, in bite-sized sessions throughout your day. - Explore our rapidly expanding catalog, featuring: COURSES - Philosophy and the Meaning Life with Professor John Kaag - Finance and Investing: Essential Concepts for Wealth-Building - Interpersonal Dynamics: The Psychology of Human Relationships - Principles of Productivity: Skills and Strategies for Getting Things Done QUICK READS - The Freudian Mind: Id, Ego, Superego - mRNA Vaccines and the Future of Immunity - The Imprint Guide to Gerrymandering VISUAL GUIDES TO BESTSELLING BOOKS - Sapiens by Yuval Noah Harari - Atomic Habits by James Clear - The Beginner's Guide to the Stock Market by Matthew Kratter ...and much more! -- SUBSCRIPTION PRICING AND TERMS: Imprint offers an auto-renewing yearly subscription and an auto-renewing monthly subscription which allows you full access to all of the content in our catalog for as long as you maintain an active subscription. These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on your country. Payment will be charged to the credit card connected to your iTunes account at the time of initial subscription purchase. Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current period end date, and the cost of the renewal will be listed. You can manage your subscription and auto-renewal can be turned off by going to your Account Settings after the purchase. Read more about our Privacy Policy here: https://bit.ly/2UzFLvt Read more about our Terms of Service here: https://bit.ly/2Jc1rZm

About

Cortex Flex Performance

This app offers brain training routines developed by neuroscientists to enhance focus, reaction time, and mental resilience for athletes. It includes specialized workouts, mental skills tools, and insights from recruiters to help users perform at their peak.

Highlights
  • Neuropriming Workouts
  • Mental Skills Training
  • Recruitment Insights
  • Game-Day Prep
  • Elite Athlete Community
Features
Read full description

CortexFlex is the daily brain-and-body training system for serious athletes. Developed by neuroscientists and elite performers, its short routines prime your nervous system in the morning, help you recover at night, and build the focus and confidence you need to perform when it counts. Whether you're under the lights on Friday night or grinding through the off-season, CortexFlex turns mental preparation into a daily habit you can see, track and compete on. CortexFlex is free to download and includes the Foundations plan. Some features require a paid Amplify membership; they're listed under AMPLIFY MEMBERSHIP below. YOUR DAILY ROUTINE • AM Primer: morning steps including psychosensorimotor visualization, a fast-twitch activator, sunlight viewing, gratitude and your Identity X-Factor • PM Adaptor: evening steps to regulate your nervous system, lock in what you learned and wind down for better sleep • Foundations includes one AM Primer step and one PM Adaptor step each day PROGRESS YOU CAN SEE • Earn XP for every step and climb seven ranks, from Rookie to Legend • Keep your health bar up and your streak alive • Track your last 10 sessions for every exercise TRAIN WITH YOUR TEAM • Circuit Showdown: a weekly team competition with team and individual rankings, week by week and across the season • Activity feed: see your teammates' completions and announcements from your coach and Cortex • Coach-assigned workouts, plus a workout generator for the days you train on your own LEARN THE WHY • Video Library: technique breakdowns and program walkthroughs • Exercise Library: every Cortex exercise with its demo video • Workout Library: preview Cortex workouts FOR PARENTS • A Family view to follow your athlete's training at a glance AMPLIFY MEMBERSHIP (PAID) • The full AM Primer (five steps) and PM Adaptor (three steps) every day • Daily calibration: a quick check-in that fits each day's training to how your body feels • Nutrition checklist: simple, gamified daily nutrition targets • Your full performance history for every exercise • Two generated workouts per week instead of one Athletes on a coach's team plan may already have Amplify included. Terms of Service: https://cortexflex.org/terms Privacy Policy: https://cortexflex.org/privacy

Screenshots

Imprint4 screens
Cortex Flex Performance4 screens

Verdict

The call

The clearest difference is review sentiment: Cortex Flex Performance at 100% against Imprint's 38%. Cortex Flex Performance also leads on monetization model (free with in-app purchases vs subscription) and ads (none vs shown). Imprint's advantage is ratings volume (58K vs 10) and update cadence (every 5 days vs every 2 weeks). On price, in-app purchases, 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. Imprint sells 14 in-app purchases, starting at $3.99 per month and Cortex Flex Performance sells 1 in-app purchase, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Cortex Flex Performance holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Imprint has 58K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 38% of Imprint's written reviews are positive against 100% of Cortex Flex Performance's.

UpkeepUpdate frequency

Imprint ships an update every 5 days, Cortex Flex Performance every 2 weeks. The most recent releases landed on October 13, 2026 and October 10, 2026 respectively.

Scorecard7 real differences · 4 level
Imprint versus Cortex Flex Performance: the parameters behind the verdict, then further details
ParameterImprintCortex Flex Performance
PriceFreeFree
Rating4.8 (58K ratings)5.0 (10 ratings) — better
Positive reviews38.2% of reviews100.0% of reviews — better
Number of ratings58K — better10
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
Best chart rank#4 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size192 MB52 MB
Age rating12+12+
DeveloperPolywise, Inc.Cortex Flex Inc

Customer experience

Imprint

All ratings57,527 ratings
Positive94.8%
Neutral1.7%
Negative3.5%
Written reviews1,428 reviews
Positive38.2%
Neutral7.2%
Negative54.6%

Cortex Flex Performance

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Imprint

Reported bugs

4 issues
  • Freezing or crashing issues
  • Inconsistent load times
  • Syncing problems between devices
  • Unfinished or incomplete courses

Requested features

5 requests
  • Sync progress across devices
  • Dark mode option
  • More diverse content topics
  • Ability to download content offline
  • Better organization of saved content

Cortex Flex Performance

Not enough reviews yet to summarise bugs or requests.

In-app purchases

14 purchases

Imprint

Subscriptions14
  • Monthly Subscription$3.991 Month
  • Monthly Subscription$7.991 Month
  • Yearly Subscription$10.991 Month
Show 11 more
  • Monthly Subscription$11.991 Month
  • Monthly Subscription4 variants$15.991 Month
  • Yearly Subscription7 Days trial$24.991 Year
  • Imprint premium$29.991 Year
  • Yearly Subscription7 Days trial2 variants$49.991 Year
  • Discount yearly (7 day trial)7 Days trial$59.991 Year
  • Yearly Subscription7 Days trial$69.991 Year
  • Discounted yearly (no trial)$69.991 Year
  • Yearly Subscription7 Days trial3 variants$74.991 Year
  • Yearly Subscription7 Days trial2 variants$99.991 Year
  • Yearly Subscription (Discount)7 Days trial$99.991 Year
1 purchases

Cortex Flex Performance

Subscriptions1
  • Cortex Monthly$29.991 Month

Questions

Is Imprint free?
Imprint is free to download, with in-app purchases available.
Is Cortex Flex Performance free?
Cortex Flex Performance is free to download, with in-app purchases available.
Which has better reviews, Imprint or Cortex Flex Performance?
Cortex Flex Performance is rated higher. Imprint averages 4.8 out of 5 from 58K ratings, while Cortex Flex Performance averages 5.0 from 10 ratings.
Do Imprint or Cortex Flex Performance have ads?
Imprint shows ads; Cortex Flex Performance does not.
Which is updated more often, Imprint or Cortex Flex Performance?
Imprint ships an update every 5 days, and Cortex Flex Performance every 2 weeks. Most recently, Imprint was updated on October 13, 2026 and Cortex Flex Performance on October 10, 2026.

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