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Privacy Policy - DeFi & Crypto Calculator

Last Updated: February 26, 2026

1. Introduction

Welcome to DeFi & Crypto Calculator ("the App"). We are committed to protecting your privacy and ensuring you have a positive experience when using our application. This policy explains how we handle information, particularly in relation to advertising and user consent.

2. Data Collection & Privacy

We believe in transparency and data sovereignty.

  • No Private Keys: The App never asks for, collects, or stores your private keys, seed phrases, or any sensitive wallet information. Your funds remain entirely under your control.
  • Local Calculations: All financial and investment calculations are performed locally on your device. Your financial input data never leaves your device.
  • No Account Required: You can use all features of the App without creating an account or providing any identity-linked information.

3. Advertising & User Consent

To keep the App free for everyone, we use third-party advertising services.

  • AdMob: We use Google AdMob to serve advertisements. AdMob may use device identifiers (such as Android Advertising ID or iOS IDFA) to show personalized or non-personalized ads.
  • UMP SDK & GDPR: For users in the EEA, UK, and Switzerland, we use the Google User Messaging Platform (UMP) SDK to collect and manage your consent for personalized advertising and data usage. You can change your privacy choices at any time within the app settings.
  • Device Identifiers: We may use unique device identifiers to deliver ads and to analyze the effectiveness of our advertising campaigns.

4. Data Storage

Any data you enter into the calculator is temporarily held in your device's memory only for the duration of your session. This data is cleared when you close the App and is never transmitted to our servers.

5. Third-Party Links

The App may contain links to external DeFi protocols or websites. Use of these third-party services is subject to their own privacy policies and terms of service.

6. Changes to This Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated revision date.

7. Contact Us

If you have any questions about this Privacy Policy, please use the feedback mechanisms provided on the Qalc.ai website.