Privacy Policy & Data Deletion Policy — Dana Khata (দানা খাতা)
Last Updated: October 2026
Developer / App Name: Dana Khata (দানা খাতা)
Package Name: com.danakhata.hisab.bd
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1. Introduction
Dana Khata ("we", "our", or "us") is dedicated to protecting the privacy and personal data of our users. This Privacy Policy explains how our mobile application "Dana Khata - Digital Ledger & Cash Book" collects, uses, stores, and protects user information in compliance with Google Play Developer Program Policies.
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2. Information We Collect
To provide a reliable business ledger, bookkeeping, and customer management experience, we may collect the following information with user consent:
a) Profile Information: Shop/business name, owner name, phone number, and email address (used for account creation, login identification, and secure cloud synchronization).
b) Business Ledger Records: Customer names, phone numbers, transaction histories, credit/debit balances, product inventory, and expense entries added directly by the user.
c) App Security Data: Custom 4-digit security PIN and device biometric/fingerprint authentication states (verified securely on-device).
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3. Device Permissions & Purpose
Dana Khata requests only the minimum necessary permissions strictly required to provide its services:
- Storage / Media Permission: Required to generate, export, and share digital invoice/memo PDF files with customers.
- Notification Permission (Optional): Used to send end-of-day sales summaries and essential low-stock alerts.
- Contact Permission (Optional): Allows users to conveniently pick phone numbers from their address book when adding a new customer.
- Biometric Hardware Access: Utilizes the device's native fingerprint/biometric sensor for fast and secure application unlocking.
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4. How We Use & Protect Your Data
- To accurately compute and maintain your daily business accounts, inventory, and credit/debit ledgers.
- To safely synchronize and back up your records to Google Firebase Cloud, ensuring data is never lost if your device is changed or misplaced.
- To facilitate sharing of receipts and transaction statements via WhatsApp and SMS upon user request.
- We implement industry-standard encryption protocols (HTTPS, SSL, SHA-256). We DO NOT sell, rent, trade, or share your financial records or personal information with any third parties or advertisers.
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5. Data Retention & Deletion Policy
Users retain complete ownership of their data. You can edit or delete individual transactions, customer entries, or request permanent deletion of your complete account and cloud data directly through the in-app settings or by contacting our official support email.
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6. Third-Party Services
Our application integrates trusted third-party services that comply with global privacy and security standards:
- Google Play Services
- Google Firebase (Cloud Firestore & Authentication)
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7. Children’s Privacy
Dana Khata is intended for business owners and merchants. We do not knowingly collect personal information from children under 13 years of age.
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8. Account & Data Deletion Policy — Dana Khata (দানা খাতা)
How to Delete Your Account & Data:
Option 1: Delete Directly Inside the App (Instant Deletion)
1. Open the Dana Khata app and log in to your account.
2. Go to Settings (সেটিংস).
3. Tap on "অ্যাকাউন্ট ডিলিট করুন" (Delete Account).
4. Confirm with your PIN or confirmation text. All your cloud and local data will be permanently deleted immediately.
Option 2: Request Account Deletion via Email / Web (If App is Uninstalled)
If you have uninstalled the app or cannot access it, you can request permanent deletion of your account and all associated data by emailing us at:
- Email: aldana9269160@gmail.com
- Subject: Account Deletion Request - Dana Khata
(Please include your registered Email address or Phone number in the message. We will verify and permanently delete your account and data within 7 business days.)
Data That Will Be Deleted:
- User profile information (Name, Email address, Phone number, User ID)
- All cloud backup records (Products, Customers, Sales invoices, Expenses, Tailoring orders, Transactions)
- No personal or business data is retained after deletion.
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অ্যাকাউন্ট ও ডাটা ডিলিট করার নিয়ম (Dana Khata / দানা খাতা):
১. অ্যাপের ভেতর থেকে (তাৎক্ষণিক ডিলিট):
অ্যাপের সেটিংস (Settings) থেকে "অ্যাকাউন্ট ডিলিট করুন" অপশনে গিয়ে নিশ্চিত করলে আপনার লোকাল ও ক্লাউড (Firebase) থেকে সকল হিসাব ও ব্যক্তিগত তথ্য সাথে সাথে স্থায়ীভাবে মুছে যাবে।
২. ইমেইলের মাধ্যমে (অ্যাপ আনইনস্টল করা থাকলে):
আপনার নিবন্ধিত ইমেইল বা ফোন নম্বর উল্লেখ করে উপরের সাপোর্ট ইমেইলে পাঠালে ৭ কার্যদিবসের মধ্যে আপনার অ্যাকাউন্ট ও সমস্ত তথ্য স্থায়ীভাবে মুছে ফেলা হবে।
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9. Contact Us
If you have any questions, suggestions, or concerns regarding this Privacy Policy or your data, please contact us:
- Application: Dana Khata (দানা খাতা)
- Helpline / WhatsApp: +8801935474667
- Official Support Email: aldana9269160@gmail.com
- Location: Bangladesh