Step into a theatrical academy of cognitive challenges. Every performance takes place on the Grand Mindstage — a mysterious carnival filled with glowing bells, shifting spotlights, and elaborate visual illusions.
Each arena trains a distinct skill. Complete challenges, build your ratings, and gradually reveal your unique Cortex Balance.
Remember expanding sequences of illuminated bells and reproduce them in the correct order. The sequences grow as you improve.
Track the correct symbol while distractions move and positions change across the stage. Do not lose it in the shifting light.
Identify visual rules, complete patterns, and solve carefully designed logic challenges that reward careful observation.
Catch the correct sparks, avoid deceptive signals, and build accurate reaction combos under the pressure of time.
Inspect increasingly complex grids and discover subtle visual differences before time runs out. Nothing is as it appears.
An animated five-axis profile that maps exactly where your cognitive strengths lie — and which arena needs attention next. It develops as you play.
Reveal rare trophies by completing challenges, building streaks, visiting every arena, and reaching new personal milestones. Each unlocked trophy includes a one-time Sparks reward.
A five-part daily programme combining all five cognitive arenas in one focused session. Save your progress and return later — the act waits for you.
Analyses your saved performances, identifies the skill that needs the most attention, and creates a personalised three-act training route.
Yefim reads and answers every message personally.
This privacy policy applies to the Carnival Cortex app for mobile devices, together with any related services operated by Yefim Muravyov (collectively, the "Application"). Yefim Muravyov is hereby referred to as the "Service Provider".
The Application does not collect, log, or store any personal information when you download and use it. Registration is not required. If the Application is used with an active internet connection, technical protocol data (such as your ephemeral IP address) is transmitted to facilitate network connectivity, but this data is not retained or used for tracking.
This Application does not collect precise information about the location of your mobile device.
Since the Application does not collect any information, no data is shared with third parties.
Since the Application does not collect personal information through normal use, uninstalling it simply removes the Application from your device.
If you contact the Service Provider directly or voluntarily provide information by other means, you may request deletion of that information by contacting [email protected].
The Application is not intended for children under 13 years of age, or such higher age as required by applicable law. The Service Provider does not knowingly solicit data from children or market to them. Since the Application does not collect personal information through normal use, children's data is not at risk from use of the Application alone. If you voluntarily provide personal information through other means and are under 13 years of age, your parent or guardian must provide consent on your behalf where permitted by law.
Because the Application does not collect personal data, the risk of personal data exposure is minimal. However, no security system is completely secure. The Service Provider implements reasonable safeguards to protect systems and any data it holds.
Since the Application does not collect personal data through normal use, the risk of a data breach affecting your personal data is minimal. If a breach occurs involving any data you have voluntarily provided, the Service Provider will notify you as required by applicable law.
The Service Provider may update this Privacy Policy from time to time. The Service Provider will notify you of material changes by posting the updated Privacy Policy with an effective date. Where required by law, the Service Provider will seek your consent to material changes before they take effect.
Previous versions of this Privacy Policy will be maintained and made available upon request by contacting the Service Provider at [email protected].
If you voluntarily provide information to the Service Provider and processing is based on consent, you may withdraw that consent at any time without affecting processing carried out before withdrawal.
If you have any questions regarding privacy while using the Application, or have questions about the practices, please contact the Service Provider via email at [email protected].
This privacy policy is effective as of 2026-08-20