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Contact Our Team

Have a question about our brain exercises, the platform, or our privacy practices? We're happy to help. Fill in the form below or reach us directly by email.

Contact Information

Reach Us Directly

Email Address

Office Address

〒577-0023
1-7-9 Aramoto, Higashi-Osaka
Osaka, Japan

Office Address

Response Time

We aim to respond to all enquiries within 2 business days (Japan Standard Time, JST).

Office Address

Platform Support

For questions about test results, technical issues, or exercise content on this platform.

Platform Support

Privacy Requests

For data access or deletion requests under applicable privacy law, please email us with "Privacy Request" in the subject line.

Send Us a Message

By submitting this form you agree to our Privacy Policy. We do not share your information with third parties.

✅ Thank you for your message. We'll respond within 2 business days.

Strategic thinking concept illustrating the cognitive challenge categories available on the platform

Explore Our Brain Exercise Categories

While you're here, why not try one of our four brain exercise categories? Each test is free, instant, and requires no account or registration.

Whether you prefer quick reaction tests, memory challenges, logical puzzles, or focus exercises — there's a daily exercise waiting for you.

⚡ Reaction Speed 🧠 Memory Games 🔷 Logic Puzzles 🎯 Focus Training
About the Tests

Questions About Our Test Format?

Our brain exercises are structured to be self-explanatory and easy to begin. Each test begins with a brief instruction screen so you always know what to expect before you start.

Tests are educational and for entertainment only — there are no pass/fail outcomes, no time limits unless you choose them, and no personal data is required to participate.

Support Hours

Mon–Fri, 9:00–17:00 JST

Platform Access

24 hours, 7 days a week

Response Time

Within 2 business days

Language

English & Japanese

Visual representation of brain test questions and exercise formats used on the platform
Before You Write

Check Our FAQ First

Many common questions are already answered on our FAQ page — including information about our tests, privacy practices, and terms of service.

View FAQ & Legal Information →
Platform Disclaimer: Recycling Granulator Shredder is an educational and entertainment platform operated by Recycling Granulator Shredder Japan. All brain games and exercises are for personal interest and self-improvement only. No content constitutes medical advice. Test results carry no clinical significance. For health concerns, please consult a qualified healthcare professional.

Try a Brain Exercise Today

Free, instant, no registration required. Pick a category and begin.

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