BiAffect

University of Illinois at Urbana-Champaign · Health & Fitness

4.6 11 ratings Free

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Not currently charting in this storefront.

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 26, 2026
Rating ★ 4.33 → 4.64

Price & rating history · US

Reconstructed from the listing changes AppTracker has observed in this storefront, so each line starts at the first change on record.

Average rating history over the observed period. 4.4 4.5 4.6 Aug 26 15:40 Aug 27 06:09 Aug 27 20:38 Aug 28 11:07 Aug 29 01:36

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About

Thank you for trying BiAffect. In this ResearchKit study, we would like to understand the relationship between mood and neurocognitive functioning in bipolar disorder using keystroke dynamics (such as typing speed and typing errors) and other passive sensor information (such as the accelerometer). You don't have to be a person with bipolar disorder to help us test this app—we also need healthy participants to use the app and serve as a control group. Currently, diagnosis and treatment of bipolar disorder rely on careful history taking and examination by a clinician, at times aided by self-report or caretaker-informed questionnaires. In general, these reports have to be interpreted by providers in order to extract patterns that could indicate an imminent change in mood. Moreover, they do not necessarily represent objective psycho-physiological markers. On the other hand, the pervasive use of mobile wireless devices has significantly shaped interpersonal communications in modern life. Indeed, as personal smartphone technology advances, people are increasingly interacting with one another via typed (rather than oral) communications. For this reason, we want to investigate if keyboard dynamics and sensor data from iPhone serve as more objective biomarkers or 'virtual mental-health footprints' of bipolar disorder and mood in general.

What's new · 4.0.6

* All-new KeyboardKit-powered keyboard for improved performance and stability * Enhanced typing experience with better responsiveness and compatibility across iOS * Improved data collection infrastructure and study management * Numerous bug fixes and usability improvements

Details

ReleasedMar 2018
UpdatedJun 2026
Version4.0.6
Size38.1 MB
RequiresiOS 16.1 or later
Age rating12+
LanguagesEnglish
PriceFree
Categories Health & FitnessMedical
Bundle IDedu.uic.psychiatry.biaffect