Smart expense tracking & budget management
All your data stays on your device with bank-grade encryption. No internet required.
Create virtual accounts for different savings goals and track your progress.
Get insights into your spending patterns with beautiful charts and AI-powered analysis.
Set up automatic tracking for regular expenses like rent, bills, and subscriptions.
Coster is designed with privacy-first principles. All your financial data stays on your device with zero data collection.
We store the following data locally on your device:
We do NOT collect any of the following:
You have complete control over your data:
This privacy policy was last updated on August 16, 2025. For the complete privacy policy, please visit our detailed privacy policy document.