Android app
Spending Log
Spending Log is a local-first ledger for one Japan trip. Record purchases in Japanese yen or U.S. dollars, JPY added funds, and repayments; organize entries with categories; add optional purchase photos; and set a starting budget.
When you choose it, the app can retrieve an ECB USD-to-JPY reference rate through Frankfurter. Your trip data stays on your device: Spending Log has no account, cloud sync, advertising, or analytics.
It is designed for individual English-speaking travelers to Japan in markets where Galaxy Store distributes the app.