OneLine: Expense Tracker

Doublew

Contains adsIn-app purchases

About this app

OneLine is a personal expense tracker that turns a natural one-line entry into an organized money record.

Type something like “Coffee 5 dollars” or “Lunch 12 dollars.” OneLine reads the amount, income or expense type, and date, then sorts the entry into a category on your device. Start immediately without creating an account or linking a bank or card.

Fast one-line logging

- Record income and expenses in natural language
- Parse the amount, type, and date in one step
- Sort entries into categories on your device
- Review and edit the result before saving

Understand your spending

- Browse, edit, and delete transactions by date
- Review monthly and yearly income and expense statistics
- See category breakdowns and top spending areas
- Look back on recent activity in a weekly report
- Manage goals and saving, income, or spending challenges

No sign-up or bank connection

Transactions, goals, budgets, and settings are stored on your device without an account or financial account connection. Transaction text and exact amounts are not sent in analytics events.

Notifications on your terms

Turn on a weekly money reminder when you want it. Notification permission is requested only when you enable the feature.

Every money-tracking feature stays free. Free users may see banner ads in selected screens. A one-time purchase can remove ads across the app.

Languages: Korean, English, and Japanese

What’s new

What's New

• New Travel category — hotels, flights, and stays are now categorized automatically
• Smarter auto-categorization — understands everyday phrases, brand names, and shorthand like "Netflix" or "Uber"
• Fixed an issue where unrecognized entries could be saved to the wrong category — they now go safely to Others
• Currency settings now follow your app language
• More accurate save notifications and overall performance improvements