YongduYONGDU
Meet Yongdu
A LITTLE MORE MINDFUL. FOR iOS
A price is a moment. Value is every day.
See the real cost of the things you own,
from the day you buy them to the life you share.
Make your favorites part of every day.
01 / A NEW PERSPECTIVE
A laptop. Headphones. A bicycle.
A new way to see the things around you.
Put a price into perspective with current value
and the time you have spent together.
Straight-line, double-declining, or manual valuation.
Follow the changing value of your things.
Explore purchase plans and financing estimates.
See tomorrow’s payments and costs today.
Record original currencies, review in your base currency.
Keep your whole asset picture in view.
Categories, tags, and home-screen widgets.
Record a little. See the whole picture.
02 / THE COST LAB
What does a CN¥8,000 item cost each day?
Move the sliders to explore your long-term plan.
03 / YOUR DATA, YOUR SPACE
Your asset data stays on your device by default.
Record your life. Keep it yours.
JSON backup and restore, plus CSV exports. Keep your own copy.
Local passcode, Face ID / Touch ID, and a privacy cover.
Sync preferences and asset packages. Back up before restoring.
04 / GOOD TO KNOW
Yongdu focuses on things you own and major purchase plans. It uses price, valuation, time in use, and related expenses to show daily ownership costs, depreciation, and net asset value.
The hero shows a concept interface with sample data. The lab uses a simplified planned daily cost: purchase price minus planned residual value, divided by planned days. The app’s current amortized cost instead uses costs to date, current value, and elapsed days.
Yongdu supports iOS 17.0 or later and five language options: English, Japanese, Simplified Chinese, Traditional Chinese (Taiwan), and Traditional Chinese (Hong Kong).
No. The calculator runs locally in your browser. This website has no asset-upload endpoint or analytics scripts. Contact links open your mail app. The hosting provider may process access logs needed to serve the website.
Start with one thing you use every day.
Find what makes it worthwhile.