🖐️ SteadyHand — Your Personal Hand Tremor Coach & Stabilizer! 🎯✨
Turn your phone into a precision tremor analyzer and a fun training partner anytime, anywhere.

📊 Pro-Grade Measurement (15s) – Get an instant Stability Score (0–100) using fused accelerometer + gyroscope data.
🎛️ Personal Calibration (30s) – Set your personal baseline so scores and difficulty adapt to you.
🎮 Gamified Training – Build steadiness the fun way.

• Hold Steady: keep still to charge your Stability Gauge

• Breath & Hold: sync breathing with calm “HOLD” phases

• Latte Art: pour smoothly to complete the latte 💟

• Bomb Defusal: stay steady to disarm each node 🧩

• Steady Shot: hold 1s of calm for an auto-shot 🎯

📈 Progress & Rewards – Track trends, complete daily quests, and earn badges that celebrate real improvement.
⚙️ Simple Settings – Choose session lengths, haptics, sounds—set it once, and go.
🧠 Clear, Friendly Guidance – Onboarding, tooltips, and quick guides keep everything obvious, not overwhelming.
🔐 Privacy-First – Your measurements and settings are stored on your device. No accounts. No cloud.
👵🕹️🎥 Made for Everyone – Seniors, gamers, creators—anyone who wants steadier hands for life, work, or play.

🌟 Where it helps
Filming and photography, mobile gaming aim, handwriting, drawing, streaming, coffee art, presentations—any moment you need control, SteadyHand has your back.

👉 Download SteadyHand today and turn small moments of calm into big wins—one steady second at a time. 💪📲

Terms of Service (+Disclaimer)

Here’s a polished, structured “About this app” for SteadyHand—clear, compliant, and ready for a store page or in-app “Legal/Info” screen.

About this app

SteadyHand is a personal hand-tremor coach and stabilizer. It measures your tremor with your phone’s motion sensors and guides you through short, game-like training to improve steadiness for filming, drawing, writing, gaming aim, and everyday tasks.

What SteadyHand does

• Pro Measurement (15s): Calculates a Stability Score (0–100) using fused motion data and frequency-band power (4–12 Hz).
  
  

• Personal Calibration (30s): Creates a personal baseline so scores and training difficulty adapt to you.
  
  

• Training Modes:
  
  

  • Hold Steady: Maintain stillness to fill the Stability Gauge
    
    

  • Breath & Hold: Sync breathing with calm “HOLD” phases
    
    

• Mini-Games: Latte Art, Bomb Defusal, Steady Shot—skill building through play.
  
  

• Progress & Rewards: Trend charts, daily quests, and badges for motivation.
  
  

How it works (sensors & algorithms)

• Sensors: Accelerometer + Gyroscope (no microphone, camera, or Wi-Fi scanning).
  
  

• Signals: Real-time RMS (overall motion magnitude) and band power in the 4–12 Hz range (typical tremor band).
  
  

• Scoring: Compares live signals to your calibration baseline to generate a Stability Score and adapt difficulty.
  
  

Permissions & device access

SteadyHand is minimal by design:

• Motion sensors: Used for measurement and training. (No runtime permission required on most devices.)
  
  

• Haptics/Vibration: Optional tactile feedback during success/failure cues.
  
  

• Local storage (SharedPreferences): Saves your baseline, settings, badges, and measurement history on device.
  
  

• No access to: Camera, microphone, photos, contacts, precise location, Bluetooth/Wi-Fi scanning.

Data handling & privacy

• Local-only by default: Measurements, baselines, settings, and achievements are stored on your device.
  
  

• No collection, no selling: We do not collect, transmit, sell, or broker your personal data.
  
  

• Your control: You can clear measurement history and reset calibration anytime in Settings → Data.
  
  

• Children: SteadyHand is a general-audience utility and does not knowingly process children’s personal information.
  
  

Data accuracy & limitations

• Motion analysis can be influenced by posture, surface vibration, device model, and environment.
  
  

• Results may produce false positives/negatives and should be treated as guidance for training and self-tracking—not as definitive assessments.
  
  

• SteadyHand is not a medical device and does not provide diagnosis, treatment, or clinical monitoring. For health concerns, consult a qualified professional.
  
  

Liability

The SteadyHand Team provides this app “as is.” We are not liable for decisions or actions taken solely on the basis of in-app results. For safety-critical or legal matters, seek professional evaluation.

User responsibility

• Use the app safely: keep a stable posture, avoid use while walking/driving, and be mindful of surroundings.
  
  

• When results look unusual, re-calibrate (30s) and re-measure (15s) under consistent conditions.
  
  

Contact

Questions or concerns? We’re here to help: corp.exciting@gmail.com

Version info

• App: SteadyHand

• First version: v1.0.0 (build 1)

Privacy Policy

Effective date: [set on release]
App: SteadyHand (“we,” “our,” “us”)

1. Introduction

SteadyHand helps users measure hand tremor and train steadiness using on-device motion analysis. We respect your privacy and designed the app to work locally by default. This Policy explains what we access, how we use it, and your choices.

2. Information We Collect (and Don’t)

We do not collect personally identifiable information (PII) on our own servers, and we do not run a backend that stores your data.

The app may access the following device features solely to provide core functionality:

• Motion sensors (accelerometer & gyroscope): to compute RMS, band power, and a Stability Score.

• Haptics/Vibration (optional): tactile feedback for cues.

• Local storage (SharedPreferences): to save your calibration baseline, settings, measurements, and achievements on your device.
  
  

We do not access camera, microphone, photos, contacts, SMS, call logs, precise GPS, Bluetooth/Wi-Fi scanning.

Your history and settings remain on your device unless you explicitly export/share them.

3. Advertising & Third-Party Services (AdMob)

We integrate Google AdMob to display advertisements. Depending on your region and consent choices, ads may be personalized or non-personalized.

• Data AdMob may use/process (by Google): advertising identifiers (e.g., AAID/IDFA), coarse location or IP-derived region, device/usage info related to ad delivery, and performance metrics.

• What SteadyHand does NOT do: we do not collect, sell, or broker your personal data; we do not upload your measurement history or baselines to our servers.

• Consent & choices: where required, we present a consent prompt (e.g., GDPR/EEA, U.S. state privacy laws). You can change ad preferences via in-app consent (if provided) and your device’s ad settings.

• Personalized vs. non-personalized: if you withhold consent, we request non-personalized ads. Availability may vary by region/policy.

• Kids: SteadyHand is not directed to children under 13. We do not knowingly collect data from children and do not use child-directed ad settings.
  
  

Note: Platform settings let you limit ad personalization or reset your advertising ID (Android/iOS).

4. Data Usage & Retention

• Baselines, measurements, settings, and achievements are stored locally on your device for scoring, training adaptation, and progress views.

• We do not upload your data to our servers.

• Uninstalling the app removes locally stored data associated with SteadyHand.
  
  

5. Security

We minimize risk by keeping data on your device. Still, no system is perfectly secure—please use device passcode/biometrics and keep your OS up to date.

6. Accuracy & Medical Disclaimer

Tremor metrics vary with posture, surface vibration, and device model; results may include false positives/negatives and are intended for training and self-tracking only. SteadyHand is not a medical device and does not provide diagnosis or treatment. For health concerns, consult a qualified professional.

7. Children’s Privacy

SteadyHand is not directed to children under 13, and we do not knowingly collect data from children.

8. Your Rights & Control

Because we don’t keep server copies, there’s nothing for us to provide, modify, or delete remotely. You control your data locally:

• Clear measurement history

• Reset calibration baselines

• Uninstall the app to remove local data entirely
  For ads, manage personalization via the in-app consent screen (where available) or device ad settings.
  
  

9. Changes to This Policy

We may update this Policy from time to time. Updates will appear in-app and/or in the store listing with a new effective date.

10. Contact

Questions or concerns? corp.exciting@gmail.com