Last updated: 17 March 2026
Short version: PlayMemorize is free to use for personal and educational purposes. The mathematical digit data is in the public domain. No warranties are given and no liability is accepted. Be reasonable.
By using PlayMemorize you agree to these terms. If you do not agree, do not use the site. These terms may change. Continued use after any change constitutes acceptance.
PlayMemorize is free to use for personal, educational, and non-commercial purposes. You may:
You may not:
The digits of mathematical constants (pi, e, phi, and others) are mathematical facts and are in the public domain. No one owns them.
The PlayMemorize application code, design, visual presentation, and educational content are owned by PlayMemorize. The name PlayMemorize and its visual identity may not be used without permission.
PlayMemorize is provided as is, without warranty of any kind. We do not guarantee that the site will be available at all times, that digit data is free of errors, or that it will meet any particular purpose. Mathematical constants are computed to reasonable precision but are not certified for scientific or safety-critical use.
To the fullest extent permitted by law, PlayMemorize and its operators accept no liability for any loss or damage arising from use of the site, reliance on any content, or inability to access the service.
Your practice progress is stored in your own browser and never transmitted to us. See our Privacy Policy for full details.
Questions about these terms? Email hello@playmemorize.com.