Drivetrain Studio · Android

GearInch Bike Lab

Your pocket workshop for gear inches, cadence math, climb planning, and garage-ready drivetrain builds — crafted for Google Play.

Developer HAVKALIUKDEV Platform Google Play · Android Package com.molininidionec.gearinchbikelab

App Store Listing · Marketing

Listing copy for Google Play Console

GearInch Bike Lab is a workshop-grade Android app for cyclists who think in teeth, inches, and rollout. Build 1×, 2×, and 3× drivetrains in the Lab, save bikes in your Garage, and run cadence, climb, chain-length, and compare tools without guesswork. A built-in ETRTO tire library keeps tire circumferences honest. Optional home-screen widget surfaces your gear range at a glance.

Short description (≤80 chars):
Build drivetrains, gear inches, cadence & climb tools — your mobile bike lab.

Garage

Save multiple bike setups with rings, cassettes, and tire choices. Search and compare builds side by side.

Lab Editor

Assemble real-world drivetrains. Gear-inches, meters of development, and gain ratios update instantly.

Tools Hub

Cadence ↔ speed, climb grade helper, chain-length estimator, and setup comparison — tuned for quick decisions.

ETRTO Library

Browse tire sizes and circumferences so rollout math matches the rubber you actually run.

Widgets & Export

Glance home-screen widget for gear range. Share or print/PDF export through the Android system sheet.

Workshop UX

Copper & anodized-teal interface, dark-friendly surfaces, metric/imperial units — built for long tuning sessions.

Who it’s for: road, gravel, and touring riders; bike tinkerers; shop night mechanics; anyone who wants numbers before they buy a cassette or chainring.

Promotional bullets (Play feature list)

App Support

Google Play · Support URL content

Need help with GearInch Bike Lab, found a calculation edge case, or have feedback about the workshop experience? Our support channel is monitored by the account holder listed below.

Account holder
HAVKALIUKDEV
App name
GearInch Bike Lab
Application ID
com.molininidionec.gearinchbikelab
Typical response
Within 2–5 business days

Before you write

Frequently asked

Do I need an account? No. Garage setups and preferences are stored locally on your device.

Are my bikes uploaded to a cloud? Core workshop data stays on your phone. See the Privacy Policy for network-related processing.

Can I export a setup? Yes — use Share or Print/PDF from supported screens.

How accurate are the numbers? Figures are engineering estimates based on standard bicycle formulas and the tire data you select. Always verify clearance and compatibility before purchasing parts.

Privacy Policy

Last updated: August 13, 2026

This Privacy Policy describes how GearInch Bike Lab (“App”, “we”, “us”) handles information when you use our Android application distributed on Google Play. The App is published by account holder HAVKALIUKDEV.

1. Summary

GearInch Bike Lab is designed as a cycling workshop tool. Your bike setups, lab configurations, and most preferences are stored locally on your device. Certain platform features — such as push notifications and network connectivity — may process limited device or usage-related data as described below.

2. Information stored on your device

We do not operate a user account system inside the App. Local data remains under your control unless you choose to share or export it.

3. Information that may be processed over the network

When network features are active, the App or its service providers may process:

Processing purposes include delivering notifications, maintaining app functionality, security, and compliance with platform requirements.

4. Permissions

Depending on your device and the features you use, the App may request permissions including:

You can revoke permissions anytime in Android Settings.

5. Third-party services

The App may integrate Google/Firebase services (including Firebase Cloud Messaging) governed by Google’s policies. We encourage you to review Google Privacy Policy.

6. Sharing and export

When you tap Share or Print/PDF, content you select is handed off through the Android system to apps you choose. We do not control third-party recipients.

7. Data retention

Local workshop data persists until you clear app storage or uninstall the App. Server-side retention, if any, follows our infrastructure providers’ policies and operational needs.

8. Children’s privacy

The App is a general sports/tooling product and is not directed at children under 13. We do not knowingly collect personal information from children.

9. Your choices & rights

10. Security

We apply reasonable technical measures appropriate to a mobile workshop app. No method of transmission or storage is 100% secure.

11. International users

If you use the App outside your home country, information may be processed in jurisdictions where our service providers operate.

12. Changes

We may update this Privacy Policy as the App evolves. The “Last updated” date above will change when revisions are posted. Continued use after updates constitutes acceptance of the revised policy.

13. Contact

Privacy inquiries for GearInch Bike Lab: