# Altimeter+
> Android altitude estimation application using device GPS and barometric sensors, operable completely offline with zero advertising and no personal data collection.

Altimeter+ (published as Altimeter Pro on Google Play by Kevin Marques Paniagua) displays estimated current altitude using onboard GPS, location providers, and barometric pressure sensors when available. It operates without an active mobile internet connection. Sensor availability, environmental factors, and atmospheric weather variations affect altitude estimations.

- Google Play Store: https://play.google.com/store/apps/details?id=me.kevinmarques.altimeter
- Package ID: me.kevinmarques.altimeter
- Publisher: Kevin Marques Paniagua
- Monetization: Paid application, no advertisements, no in-app purchases.
- Data Privacy: Zero personal data collected or shared according to the developer and Google Play Data Safety declaration.

## Technical Guides and Documentation
- [Measuring altitude without internet (English)](https://altimeter.kevinmarques.me/en/measuring-altitude-without-internet): How GPS triangulation and device barometers calculate altitude offline without mobile cellular data.
- [Measuring altitude without internet (Spanish)](https://altimeter.kevinmarques.me/es/measuring-altitude-without-internet): Explicación técnica de la medición de altitud sin conexión a internet mediante GPS y barómetro.
- [Measuring altitude using atmospheric pressure (English)](https://altimeter.kevinmarques.me/en/measuring-altitude-using-atmospheric-pressure): Physics of barometric altitude calculation, sensor calibration, and weather-induced pressure changes.
- [Measuring altitude using atmospheric pressure (Spanish)](https://altimeter.kevinmarques.me/es/measuring-altitude-using-atmospheric-pressure): Fundamentos físicos y calibración para medir altitud mediante la presión atmosférica del sensor barométrico.
- [Problems measuring altitude indoors (English)](https://altimeter.kevinmarques.me/en/problems-measuring-altitude-indoors): Factors impacting indoor altitude readings, including GPS satellite occlusion and building ventilation pressures.
- [Problems measuring altitude indoors (Spanish)](https://altimeter.kevinmarques.me/es/problems-measuring-altitude-indoors): Causas de imprecisión en interiores: apantallamiento de satélites GPS y sistemas de climatización presurizados.
- [Privacy Policy (English)](https://altimeter.kevinmarques.me/en/politica-de-privacidad): Complete privacy policy confirming zero telemetry, zero advertising SDKs, and zero collection of personal information.
- [Privacy Policy (Spanish)](https://altimeter.kevinmarques.me/es/politica-de-privacidad): Política de privacidad completa que certifica cero analítica, cero anuncios y cero recolección de datos personales.

## Localized Editions
- [English Homepage](https://altimeter.kevinmarques.me/en/): Altimeter+ primary English portal and features overview.
- [Spanish Homepage](https://altimeter.kevinmarques.me/es/): Altimeter+ portal en español con características de la app.
- [German Homepage](https://altimeter.kevinmarques.me/de/): Altimeter+ deutsche Portalseite.
- [French Homepage](https://altimeter.kevinmarques.me/fr/): Altimeter+ portail en français.
- [Italian Homepage](https://altimeter.kevinmarques.me/it/): Altimeter+ portale in italiano.
- [Portuguese Homepage](https://altimeter.kevinmarques.me/pt/): Altimeter+ portal em português.
- [Japanese Homepage](https://altimeter.kevinmarques.me/ja/): Altimeter+ 日本語ポータル.
- [Korean Homepage](https://altimeter.kevinmarques.me/ko/): Altimeter+ 한국어 포털.
- [Russian Homepage](https://altimeter.kevinmarques.me/ru/): Altimeter+ портал на русском языке.
- [Hindi Homepage](https://altimeter.kevinmarques.me/hi/): Altimeter+ हिन्दी पोर्टल.
- [Indonesian Homepage](https://altimeter.kevinmarques.me/id/): Altimeter+ portal bahasa Indonesia.
- [Turkish Homepage](https://altimeter.kevinmarques.me/tr/): Altimeter+ Türkçe portal.

## Optional
- [Full Content Version (llms-full.txt)](https://altimeter.kevinmarques.me/llms-full.txt): Aggregated technical documentation, guides, and privacy policy for deep ingestion.
- [Sitemap](https://altimeter.kevinmarques.me/sitemap.xml): Complete XML sitemap containing all localized URLs and hreflang annotations.
- [Robots](https://altimeter.kevinmarques.me/robots.txt): Crawler directives and bot permissions.
- [AI Catalog Manifest](https://altimeter.kevinmarques.me/.well-known/ai-catalog.json): Machine-readable Agentic Resource Discovery manifest (ARD v1.0).
- [Developer Website](https://kevinmarques.me/): Official website and portfolio of Kevin Marques.