Last Updated: 16th April 2026
Introduction
Expense Book ("we", "our", or "us") is committed to protecting your privacy.
This Privacy Policy explains how your information is handled when you use the Expense Book mobile application.
Information We Collect
1. Personal Information
We do not collect personal information such as:
- Name
- Email address
- Phone number
2. Expense Data
All data you enter in the app, including:
- Expenses
- Categories
- Notes
- Dates
- Receipt images
is stored locally on your device only.
We do not upload, store, or access this data on our servers.
3. Analytics and Crash Data
We use third-party services to improve app performance and stability:
- Firebase (Analytics & Crash Reporting)
- Sentry (Error Tracking)
These services may automatically collect:
- Device information (model, OS version)
- App usage data (screen views, interactions)
- Crash logs and error reports
- Performance data
This data is used only to:
- Fix bugs
- Improve app performance
- Enhance user experience
We do not link this data to your personal identity.
Device Permissions
Camera / Photos (Optional)
Used only when you attach a receipt image.
- Images are stored locally on your device
- We do not upload or share these images
How We Use Information
We use collected data only to:
- Improve app stability
- Fix crashes and errors
- Enhance performance
Your financial data is never used or analyzed by us.
Data Sharing
We do not:
- Sell your data
- Share your expense data with third parties
However, anonymized technical data may be processed by:
- Firebase
- Sentry
as part of analytics and crash reporting.
Data Security
- Your expense data is stored locally on your device
- We do not store your data on any server
- We recommend using device security (PIN, fingerprint)
Data Backup and Restore
If you use backup/export features:
- Data is stored only where you choose
- We do not access backup files
Children's Privacy
Expense Book is not intended for children under 13.
We do not knowingly collect personal data from children.
Third-Party Services
We use:
- Firebase
- Sentry
These services may collect technical and usage data as per their own privacy policies.
Your Consent
By using Expense Book, you agree to this Privacy Policy.
Changes to This Policy
We may update this policy from time to time.
Updates will be reflected with a revised "Last Updated" date.
Contact Us
If you have any questions:
📧 Email: contact@ackplus.com
Summary
- No personal data collected
- Expense data stays on your device
- No cloud storage
- Analytics used only for app improvement
- Privacy-first design
Expense Book is built to keep your financial data private and secure.5