yen-yen: Kakeibo Budget App

Expense tracker, no bank login

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

See where your money goes. Log expenses in seconds, set budgets and bill reminders, in any currency. No bank login, no ads. First 100 households get full features free. A kakeibo budget app and expense tracker for couples and households. See where your money goes, without giving any app your bank login. · Log an expense in seconds: type the amount, tag it, save. · See your week at a glance in four spending types, not fifty categories. · Track cash, bank, card and loan accounts in any currency, with historical exchange rates. · Stay on plan with monthly budgets, bill reminders and photo receipts. · Keep your data yours: CSV / JSON import and export. Delete the account from the bottom of Settings; you can cancel for 14 days. How it works 1. Type what you spent and hit save. No bank connection, no auto-categorization that gets it wrong. 2. Tag it with one tap: something you needed, something you wanted, something that feeds your mind or soul, or something you didn't see coming. 3. At the end of the week, see your pattern and decide what to change. That four-bucket method is called kakeibo (家計簿). Japanese households have used it since 1904. yen-yen puts it on your phone. Free, with optional add-ons The solo ledger is free forever. No ads, and we don't sell your data. Founder Cohort: · Share a household ledger with a partner or roommate. · AI-assisted statement import — paste lines, you approve every row, nothing auto-saves. · Ask, longer audit history, and priority support. The first 100 signed-up households get these Family features free (Founder access), with nothing to buy. After that, Pro and Family are optional in-app subscriptions, each with a 7-day free trial. The free solo ledger works forever whether or not you were in the cohort. What yen-yen will never do · Connect to your bank. · Auto-write anything to your ledger. · Send spending-guilt notifications. · Show ads. Account deletion From the bottom of Settings. You can cancel for 14 days. Also at https://kensaur.us/yen-yen/account/delete. Privacy Hosted on Supabase (Postgres), encrypted in transit and at rest. Privacy policy (web): https://kensaur.us/yen-yen/privacy Terms (web): https://kensaur.us/yen-yen/terms In-app (mobile): Settings → Help & legal → Privacy / Terms Made by kensaurus LLC in Tokyo. Bugs and questions: kensaurus@gmail.com One of a family of small apps — no sign-up wall. One optional account works in all of them.

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Buy Pro or Family without an account. Add an email any time to use your plan on your other devices. Start logging right away: an amount is enough, and the shop can wait. Turn on an evening reminder and a monthly look back, only if you want them. Invite your partner to share the ledger, right from Home. Receipt photos now keep the time you took them and a SHA-256 fingerprint of the saved file. Fixed entries that sometimes would not save.

The developer, kensaurus LLC, 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 Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Financial Info
    • Contact Info
    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
kensaurus LLC
Size
84.3 MB
Category
Finance
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 4 more
  • English, Japanese, Simplified Chinese, Thai, Traditional Chinese
Age Rating
4+
In-App Purchases
Yes
  • yen-yen Family (Yearly) $69.99
  • yen-yen Pro (Yearly) $39.99
  • yen-yen Pro (Monthly) $3.99
  • yen-yen Family (Monthly) $6.99
Copyright
© 2026 kensaurus LLC