Costook: Expense Tracker

Contains ads
Content rating
Teen
0+
Downloads
Content rating
Teen
Diverse Content: Discretion Advised
Users Interact
Learn more
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About this app

Costook helps you track everyday expenses, income and transfers. Organize your records into separate books, manage asset accounts and understand your spending with charts. No account registration is required, and you can record transactions offline.

EVERYDAY BOOKKEEPING
• Record expenses, income and transfers.
• Organize transactions with categories and image attachments.
• Browse records by date in the calendar or find them with search.
• Recover deleted records from the recycle bin.

BOOKS, ACCOUNTS AND BUDGETS
• Keep separate books for different parts of your life.
• Manage asset accounts and track their balances.
• Set budgets and review your spending.
• View charts to understand where your money goes.

IMPORT AND EXPORT
• Import records from CSV or XLSX files.
• Export records to CSV or Excel for your own use.

PERSONAL SETTINGS
• Choose from seven interface languages.
• Select a currency symbol for your records. Changing the display currency does not convert existing amounts.
• Choose your preferred theme, including dark mode.
• Use the app lock to protect access to your records.

Your bookkeeping records are stored on your device. Advertising and diagnostic services may connect to the internet. See our privacy policy for details.
Track income and expenses, manage budgets and keep records offline. No sign-up.
Updated on
Oct 9, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

Initial release of Costook.
• Track income, expenses and transfers offline. No sign-up required.
• Manage books, accounts and budgets, and review spending with charts.
• Import and export records in CSV and Excel formats.
Content rating
Teen
Diverse Content: Discretion Advised
Users Interact
Learn more

App support

Phone number
+8615779707988
About the developer
上海芒竹信息科技有限公司
mangzhutech@gmail.com
中国 上海市松江区 松江区佘山镇陶干路701号5幢 邮政编码: 200000
+86 157 7970 7988