OneDay: Cost Per Use Tracker
Daily cost of your possessions
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Track the real cost-per-day of everything you own. Free for 30 items, unlock unlimited once.
One formula, one number — the true value of the things you own.
OneDay tracks the daily cost of every item you own. How much does that iPhone really cost you per day? Was that coat worth it?
• Today's Cost — your total daily living cost at a glance
• Cost Per Day — auto-computed; the longer you use it, the lower it goes
• Smart Insights — category breakdown, trends, best-value picks and idle-item alerts
• Daily Reminder — a gentle nudge at the time you choose
• Home-Screen Widget — today's cost and category breakdown at a glance
• iCloud Sync — your data stays in sync across your devices
• Export — one tap to JSON / CSV for backup
Free for up to 30 items with every feature included. Need more? A single one-time "Unlimited Items" purchase unlocks unlimited items forever — not a subscription, no monthly fee.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 文杰 王, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 文杰 王
- Size
- 7 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 2 more
- English, Japanese, Simplified Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlimited Items $1.00
- Copyright
- © 2026 topxup