# BIOLOCK — On-device steadiness tracker

> On-device steadiness tracker (iPhone/iPad app by Yehudah Shilo Gruskin.)

- Source: https://appshunter.io/ios/app/biolock/id6773036023 (this page in markdown: same URL + `.md`)
- Developer: [Yehudah Shilo Gruskin](https://appshunter.io/developer/1871433267)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English
- Released: 2026-06-02
- Data updated: 2026-08-08
- User reviews in markdown: https://appshunter.io/ios/app/biolock/id6773036023/reviews.md

## What is BIOLOCK?

BIOLOCK is a wellness tool for iPhone and Apple Watch that measures and tracks your steadiness in real time.

The app reads three signals — voice, motion, and heart-rate variability — combines them into a single steadiness score between 0 and 1, and updates the score ten times per second. When you start to drift, the app computes a small corrective signal. A session completes when your score holds at 0.85 or higher with low drift.

Everything happens on your device. The app contains no networking code. No data is sent anywhere. No account, no login, no cloud sync. This is enforced at compile time, not just by policy.

KEY FEATURES

• Live steadiness score updated at 10 Hz on Apple Watch and mirrored on iPhone
• Drift detection with computed corrective signal
• Session lock when four steadiness conditions hold simultaneously
• Full session history saved locally on your device
• Apple Watch standalone mode when iPhone is not nearby
• Built for Apple Watch Series 10 and newer, iPhone 12 and newer
• No subscriptions, no in-app purchases, no ads in v1

WHAT BIOLOCK IS NOT

BIOLOCK is a wellness and research tool. It is not a medical device. It does not diagnose, treat, cure, or prevent any disease. If you have health concerns, consult a licensed clinician.

ABOUT THE TECHNOLOGY

BIOLOCK is the reduction-to-practice of Israeli Patent Application No. 328645 (BIOLOCK), filed at the Israel Patent Office on 25 May 2026. Every component, constant, and equation in the app corresponds to a specific element of the patent specification.

For citations, support, and privacy policy:
www.myyogameditation.com/biolock


## Version history (last 1 release)

### 1.0 — 2026-06-02

No release notes.

## More apps by Yehudah Shilo Gruskin

- [Jesus2](https://appshunter.io/ios/app/jesus2/id6758205512)

All apps by Yehudah Shilo Gruskin: https://appshunter.io/developer/1871433267

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-08.*