Quantified Citizen Pro
Contribute to citizen science
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Archived App (Last seen on 13 May 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
Quantified Citizen Pro is the professional version of the Quantified Citizen app. If you have been invited to join a study by one of our Academic Research Partners you will be able to review participation details, determine if you are eligible and join the study.
Study participation includes performing activities according to the protocol created by an Academic Research. Activities include filling-out and submitting questionnaires, performing one or more cognitive tests which including finger tapping and memory tests, as well as several auditory tests.
Researchers can choose to request data from HealthKit and CareKit as part of a participant's involvement in a study. The user is given the option to Opt-In for including this data in which case they must also give permission to the app to access this data within their device settings. Participation is not required and a user can simply choose to not join the study.
Creating a login is anonymous.
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What's New in Quantified Citizen Pro
2.10.0
March 15, 2023
Design updates to the Activities page. Optimized notification system - Fixes issue where some users did not receive notifications Plus we've fixed a number of bugs and made performance enhancements to provide a smoother and faster user interface. This release is recommended for all users.
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