Last updated: March 14, 2026
This privacy policy describes our policies and procedures on the collection, use, and disclosure of your information when you use our application, EHT Substitute.
Information We Collect :-
a) App Functionality Data:
- Search queries and search history (stored locally on device)
- App usage preferences and settings
- Technical data: device type, operating system, app version
b) Google Sheets Data:
- The app fetches EHT transformer data from a publicly accessible Google Sheet
- This data contains technical specifications only (EHT numbers, substitutes, winding data, brands, pin configurations)
- No personal user data is collected or transmitted to the Google Sheet
2. How We Use Your Information
- To provide and maintain the EHT Substitute app functionality
- To enable search and filtering capabilities
- To display technical information about EHT transformers
- To improve app performance and user experience
- To provide customer support via Telegram integration
Third-Party Services :- We use third-party services within our app, which have their own privacy policies.
Data Sharing and Disclosure**
We do not sell, trade, or otherwise transfer your personal information to third parties, except for:
a) AdMob (Google):
- The app includes AdMob banner ads for monetization
- AdMob may collect anonymous usage data for ad targeting
- Data collection follows Google's AdMob privacy policy
b) Telegram Integration:
- When users choose to contact support via Telegram, they are redirected to the Telegram app
- We do not collect or store any Telegram chat data
- Communication occurs directly through the Telegram platform
4. Data Security
- All data transmission uses HTTPS encryption
- Local data is stored securely on your device
- No sensitive personal information is collected or stored
- Google Sheets access is read-only with public access permissions
5. Third-Party Services**
a) Google Sheets API:
- Used to fetch EHT transformer database
- Only reads publicly available technical data
- No write permissions or personal data access
b) AdMob:
- Provides banner advertising
- Follows Google's privacy standards
- Users can opt-out of personalized ads through device settings
c) Telegram:
- Used for customer support communication
- Data handling follows Telegram's privacy policy
- No chat data is collected by our app
6. Your Rights
- You can clear app data and cache at any time through device settings
- You can disable internet access to prevent data fetching
- You can opt-out of personalized advertising through AdMob settings
- You can uninstall the app to remove all local data
7. Children's Privacy :-
Our service does not address anyone under the age of 13. We do not knowingly collect personally identifiable information from anyone under the age of 13.
8. Changes to This Privacy Policy :-
We may update our Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page. You are advised to review this Privacy Policy periodically for any changes.
9. Contact Us :-
If you have any questions about this Privacy Policy, you can contact us:
By email: sudarsanjena03@gmail.com
10. Disclaimer**
The technical information provided in this app is for reference purposes only. Users are responsible for verifying compatibility and ensuring proper installation of EHT transformers. The app developers are not liable for any damages resulting from incorrect usage of the information provided.
By using the EHT Substitute app, you agree to the collection and use of information as described in this privacy policy.