KinesiaU vs Hand Tremor Tracker

The KinesiaU™ motor assessment system is a validated medical consumer app for individuals to track their Parkinson’s disease or essential tremor symptoms using an iPhone and Apple Watch. The system, based on Great Lakes NeuroTechnologies' Kinesia technology, tracks tremor, slowness, and dyskinesia as well as therapies and activities in user-friendly reports patients can view on their iPhone. Additionally, clinicians can view patient data in real-time through the KinesiaU provider portal. This can help patients and clinicians make better care decisions and identify therapies and activities to improve their symptoms. The KinesiaU motor assessment system is currently cleared for sale in the USA, UK, EU, Canada, and Australia. Watch app must be installed prior to running KinesiaU app. See www.KinesiaU.com for a list of known compatible devices and additional details. Please note that full use of the KinesiaU app requires clinician approval (e.g., prescription). KinesiaU uses the HealthKit API to access motion data and Apple ID for authentication. KinesiaU is a trademark of Great Lakes NeuroTechnologies of Independence, OH, USA

Hand Tremor Tracker is the most accurate hand tremor measurement tool available on the App Store. The application uses sensitive built-in device sensors to measure fluctuations of the device in three-dimensional axes. When the user holds their phone on top of their hand, the fluctuations of the holding hand become fluctuations of the device, allowing us to measure current hand tremor. See the references at the end of the description for more information. How to use: 1) Place your phone on top of your hand. 2) Tap the measure button to initiate a new measurement. 3) The application takes about 10 seconds to measure your current hand tremor. The application requires a paid subscription. A free trial is available. Subscriptions are automatically renewed and can be canceled at any time. Upon purchase of a subscription, Apple's Terms of Service and Privacy Policy apply: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Consider seeking a doctor’s advice in addition to using this app and before making any medical decisions. References: 1) Tamper Sensing using Low-Cost Accelerometers Source: http://www.diva-portal.org/smash/get/diva2:538868/FULLTEXT01.pdf Specifically see section: "3.4.5 Malign movement - Handholding"   Methodologies used in the article (Euclidean vector calculation & Pythagorean theorem calculation) are the same methodologies used within the Hand Tremor Tracker application. 2) A smartphone-based system for detecting hand tremors in unconstrained environments Source: https://www.researchgate.net/publication/307946579_A_smartphone-based_system_for_detecting_hand_tremors_in_unconstrained_environments Specifically see section: "2.3 Detection of tremors with smartphones"   Quote: "Results with the smartphone application are highly correlated with the clinical scales."