KinesiaU vs Emerja
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KinesiaU
This medical app helps individuals track Parkinson's disease or essential tremor symptoms using an iPhone and Apple Watch. It monitors tremor, slowness, and dyskinesia, providing user-friendly reports. Clinicians can access patient data in real-time to aid in care decisions and symptom improvement.
- Symptom tracking for Parkinson's and essential tremor
- Uses iPhone and Apple Watch for data collection
- Monitors tremor, slowness, and dyskinesia
- User-friendly patient reports
- Real-time clinician data access
- Therapy and activity tracking
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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
Emerja
This app syncs with a health band to provide real-time monitoring and on-wrist tracking of usage. It automatically syncs data in the background, allowing users to maintain up-to-date information effortlessly. It is prescribed by clinical care teams as a non-medical device.
- Real-Time Monitoring
- On-Wrist Tracking
- Automatic Syncing
- Health Band Integration
- Usage Tracking
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The Emerja® App does not make any medical or health claims. Features: • Prescribed by a clinical care team as a non-medical device.* • Real-Time Monitoring: Maintain up-to-date information by syncing your health band with the Emerja® app. • On-Wrist Tracking: Monitor how long you wear your band each day. • Automatic Syncing: App will allow your device to automatically sync in the background. Connect your wearable to your iPhone with our dedicated Emerja® app. Keep your device synchronized and track your usage effortlessly. *The Emerja® App does not make any medical or health claims.
Screenshots
Verdict
The clearest difference is in-app purchases: Emerja at none against KinesiaU's 1. Emerja also leads on rating (5.0 vs 4.7) and iOS requirement (16.0 vs 18.0). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. KinesiaU sells 1 in-app purchase, starting at $5.99 per month. Emerja asks for nothing beyond the download.
Emerja holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 10 and 4 respectively.
KinesiaU ships an update every 6 weeks, Emerja monthly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | KinesiaU | Emerja |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (10 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 10 — better | 4 |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 148 MB | 10 MB |
| Age rating | 17+ | 4+ |
| Developer | Great Lakes Neurotechnologies | Emerja Corporation |
Customer experience
KinesiaU
Emerja
In-app purchases
KinesiaU
- KinesiaU Monthly Subscription14 Days trial$5.991 Month
Emerja
No in-app purchases









