Mixer Brain vs Cortex Flex Performance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mixer Brain
Learn professional music mixing techniques from a Grammy-winning engineer. This app offers over 24 hours of video and written lessons to develop your ear, instincts, and unique sound, applicable to any genre or skill level.
- Principle-based mixing course
- 24+ hours of video lessons
- Written content
- Learn at your own pace
- Works across genres and DAWs
- Behind-the-scenes of real records
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Mixer Brain by Jeff Ellis Worldwide Master the Art of Mixing – Anytime, Anywhere Step inside the brain of Grammy-winning engineer Jeff Ellis Worldwide—known for his work with Frank Ocean, Doja Cat, Joji, The Neighbourhood—and completely transform the way you mix music. The Mixer Brain app delivers Jeff’s full, principle-based mixing course directly to your phone or tablet, giving you the freedom to learn at your own pace, from anywhere in the world. With over 24 hours of in-depth video lessons paired with written content, you’ll learn Jeff’s approach to mixing from the ground up—designed to work across any genre, DAW, or skill level. Go behind the scenes of real records from some of the biggest artists on the planet, and gain a deep understanding of the principles that make great mixes truly work. This isn’t about templates or shortcuts—it’s about developing your ears, your instincts, and your unique sound. Whether you’re a bedroom producer, an aspiring engineer, or a seasoned mixer looking to evolve, Mixer Brain will radically elevate your craft and creative confidence.
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.
- Neuropriming Workouts
- Mental Skills Training
- Recruitment Insights
- Game-Day Prep
- Elite Athlete Community
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CORTEX is the ultimate brain training platform for serious athletes. Developed by neuroscientists and elite performers, this app delivers short, high-impact routines that sharpen your focus, speed up your reaction time, and reinforce a bulletproof mindset—right from your phone. Whether you’re under the lights on Friday night or grinding through the off-season, CORTEX helps you prime your nervous system, dominate the moment, and stay mentally one step ahead. What’s inside: Neuropriming Workouts – Fast drills that sync brain and body for peak performance Mental Skills Training – Tools to build confidence, focus, and competitive resilience Recruitment Edge – Weekly insights from NFL scouts and college recruiters Game-Day Prep – Brain-body activations tailored for pre-practice or pre-competition Elite Community – Train with athletes who take mindset as seriously as muscle Terms of service: https://cortexflex.net/policies/terms
Screenshots
Verdict
The clearest difference is ratings volume: Cortex Flex Performance at 9 against Mixer Brain's 3. On price, rating, review sentiment and ads 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
Both are free to download. Mixer Brain sells 1 one-off in-app purchase 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.
On the App Store both sit at effectively the same score — 5.0 for Mixer Brain against 5.0 for Cortex Flex Performance. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
| Parameter | Mixer Brain | Cortex Flex Performance |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) | 5.0 (9 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 9 — better |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 69 MB | 60 MB |
| Age rating | 4+ | 12+ |
| Developer | Jeff Ellis Worldwide, INC. | Cortex Flex Inc |
Customer experience
Mixer Brain
Cortex Flex Performance
In-app purchases
Mixer Brain
- Mixer Brain$369.00
Cortex Flex Performance
- Cortex Monthly$29.991 Month
Questions
Is Mixer Brain free?
Is Cortex Flex Performance free?
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Do Mixer Brain or Cortex Flex Performance have ads?
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