Terms of Use
Updated 5 November 2026
Quantified Cognition is provided by JollyJoyJourney. Our contact and legal notice identifies the operator. These terms cover the app's online services. The software is available under the GNU AGPL version 3; that licence governs your rights to use, modify and distribute it.
Using Quantified Cognition
Use accounts and data you are entitled to access, and respect other people's privacy and the terms of connected providers. Do not disrupt the service, circumvent its access controls or submit unlawful content.
The measurements use new methods whose reliability is still being evaluated. They help you explore patterns and personal experiments. Use other evidence when making important decisions, and do not rely on these results alone to diagnose or treat a medical condition. The Methods page explains uncertainty and possible bias.
Your data and research
The privacy policy explains how data is handled. Connecting a health account does not submit your measurements to research. Research participation requires separate consent, and each upload requires your confirmation. The research information explains participation and withdrawal.
Availability and third-party services
We may update, suspend or discontinue online features. Connections also depend on their providers' availability, permissions and terms.
To the extent permitted by applicable law, third-party service providers give no warranties, including implied warranties of merchantability, fitness for a particular purpose or non-infringement, and are not liable for consequential, special, punitive or indirect damages. Nothing in these terms limits rights or liability that applicable law makes mandatory.
Material changes will be identified by an updated date and communicated where appropriate. Changes do not expand an existing research consent. Contact quantifiedcognition@jollyjoyjourney.com with questions.