Privacy Policy

Last updated: February 15, 2026

CostSplit ("we," "our," or "us") is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application and related services.

1. Information We Collect

Account Information

When you create an account, we collect:

• Personal details: Name, email address, and password
• Profile information: Optional profile photo and display preferences

Expense Data

When you use the app, we collect expense-related data including:

• Expense details: Amounts, descriptions, categories, and dates
• Group information: Group names, memberships, and balances
• Settlement records: Payment amounts and settlement history

Financial Information

We collect financial data you enter into the app, including currency preferences and expense amounts. CostSplit does not process payments directly and does not store bank account or credit card information.

Automatically Collected Information

When you use our app, we may automatically collect:

• Device information: Device type, operating system, and unique device identifiers
• Usage data: App features used, time spent in app, and crash reports
• Log data: IP address, access times, and referring URLs

2. How We Use Your Information

We use the information we collect to:

• Provide, maintain, and improve our expense splitting services
• Create and manage your account
• Calculate balances and simplify debts within groups
• Send you notifications about expense activity and settlements
• Respond to your comments, questions, and support requests
• Monitor and analyze usage patterns and trends
• Detect, prevent, and address technical issues
• Comply with legal obligations

3. Information Sharing

We do not sell your personal information. We may share your information in the following situations:

• With group members: Your name, profile photo, and expense activity are visible to other members of your groups
• With friends: Users you connect with can see your name and profile information
• Service providers: We may share data with third-party vendors who assist us in operating our services (hosting, analytics, error tracking)
• Legal requirements: We may disclose information if required by law or to protect our rights
• Business transfers: In connection with a merger, acquisition, or sale of assets

4. Data Security

We implement appropriate technical and organizational security measures to protect your personal and financial information. All data is transmitted over encrypted HTTPS connections and stored securely on our servers. However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

5. Data Retention

We retain your personal information for as long as your account is active or as needed to provide you services. Expense data is retained to maintain accurate group balances and settlement history. You may request deletion of your account and associated data at any time by contacting us or using the in-app account deletion feature.

6. Your Rights

Depending on your location, you may have the following rights:

• Access: Request a copy of your personal data
• Correction: Request correction of inaccurate data
• Deletion: Request deletion of your data
• Portability: Request transfer of your data
• Opt-out: Opt out of certain data processing activities

To exercise these rights, please contact us at support@costsplit.app.

7. Children's Privacy

Our services are not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe we have collected information from a child under 13, please contact us immediately.

8. Third-Party Services

Our app may use the following third-party services:

• Error tracking: Sentry for identifying and fixing bugs
• Push notifications: To send expense-related notifications
• Email services: SendGrid for transactional emails

These services may collect information according to their own privacy policies.

9. International Data Transfers

Your information may be transferred to and processed in countries other than your country of residence. We ensure appropriate safeguards are in place for such transfers in accordance with applicable data protection laws.

10. Changes to This Policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date. We encourage you to review this policy periodically.

11. Contact Us

If you have any questions about this Privacy Policy, please contact us:

• Email: support@costsplit.app
• Support page: costsplit.app/support