Privacy Policy

1. Controller

LEWEB
St. Stefan am Walde 40
4170 St. Stefan-Afiesl
Austria
Email: office@leweb.at
represented by Johannes Lehner (CEO)

2. General Information

21stealth is a privacy-first crypto portfolio tracker. We do not require account registration, collect personal data, or store any user data on our servers. All portfolio data is stored exclusively on the user's own device.

3. Hosting – IONOS

This website is hosted by IONOS SE, Elgendorfer Str. 57, 56410 Montabaur, Germany. When you visit our website, IONOS may collect server log files including your IP address, browser type, operating system, and the time of the request. This data is processed on the basis of Art. 6(1)(f) GDPR (legitimate interest in the secure and stable operation of the website). For more information, see IONOS's privacy policy at ionos.com.

4. Google Analytics 4

This website uses Google Analytics 4, a web analytics service provided by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland.

Google Analytics uses cookies and similar technologies to analyze how visitors use our website. The data collected (including your IP address) is transmitted to and stored on Google servers, which may be located in the United States.

We use Google Analytics on the basis of your consent (Art. 6(1)(a) GDPR). You may withdraw your consent at any time.

IP anonymization is enabled. Your IP address will be shortened by Google within member states of the EU or the EEA before transmission.

You can prevent Google Analytics from collecting your data by installing the browser add-on available at: tools.google.com/dlpage/gaoptout

For more information on how Google processes data, see: policies.google.com/privacy

5. CoinGecko API

To display live cryptocurrency prices, our server fetches data from the CoinGecko API (provided by Gecko Labs Pte. Ltd., Singapore). All API requests are made server-side — your IP address and wallet data are never transmitted to CoinGecko. For more information, see: coingecko.com/en/privacy

6. GitHub

The source code of 21stealth is publicly available on GitHub (GitHub, Inc., 88 Colin P Kelly Jr St, San Francisco, CA 94107, USA). When you visit our GitHub repository, GitHub's own privacy policy applies: docs.github.com/en/site-policy/privacy-policies/github-privacy-statement

7. Your Rights under GDPR

You have the right to access, rectification, erasure, restriction of processing, data portability, and the right to object. You also have the right to lodge a complaint with the Austrian Data Protection Authority (Datenschutzbehörde): dsb.gv.at

8. No Data Storage by 21stealth

21stealth does not operate a backend database. No wallet addresses, portfolio data, or personal information is stored on our servers. All data you enter into the app remains on your device and — if exported — in your own encrypted file.