yen-yen – Expense Tracker

Track spending. No bank login.

Free · 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. 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, and account deletion you run yourself in 30 seconds. 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 (early access): · 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). Checkout is paused while we grow. 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 Settings → Account → Delete. 14-day undo window, then hard-deleted within 24 hours. 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 Part of KENSAURUS — small apps, no sign-up wall. One optional account works in all of them.

  • This app hasn’t received enough ratings or reviews to display an overview.

What's new in 1.22.15: • Native bridges, offline-first sync, transfer void cascade and ExpenseIQ import (#195) (mobile) • Add brand for sentences [skip mobile] [skip ota] (#194) (spine) • 2026-09-28 store names and taglines for the five apps [skip mobile] [skip ota] (#191) (spine) • Clearer store copy for yen-yen – Expense Tracker [skip mobile] [skip ota] (#190) (listing) • Accounts-first capture, statement cycles, and reward rules (#169) (mobile) • List only real apps in siblings [skip mobile] (#167) (spine) • Rename HTTTG to Cooler Heads [skip mobile] (#166) (kensaurus) • Record yen-yen in the passport on sign-in [skip mobile] (kensaurus) • Draw the passport stamps in the yen-yen cards [skip mobile] (kensaurus) • StampArtUrl and sealArtUrl for the passport stamp art (#146) [skip mobile] (spine) • Htttg AASA entry, mirror check, deep-link tests, associated-domains build guard (#147) [skip mobile] (well-known) • KENSAURUS stamp, passport card, go-links (#145) [skip mobile] (yen-yen) • Weekly funnel scorecard function, script and log (#144) [skip mobile] (kensaurus) • Passport — app links, stamps, kensaurus_me (#143) [skip mobile] (kensaurus) • Localized listings for every shipped locale + listing:check gate [skip mobile] (store) • Spine, canonical app ids and one event taxonomy (#139) (kensaurus) • Delight stamps and findability (#133) (mobile) • Restore ledger chrome and cut stores from main (#132) (mobile) • Ship KENSAURUS footer catalog and BACKLOG (#128) (web) • Declare skin-analysis too, and record why babuu-ai is not (#116) (seo) • Declare all eight apex sitemaps, not three (#115) (seo) • Cross-app KENSAURUS AI credit wallet (#110) (wallet) • KENSAURUS identity ADR + portfolio Organization entity (seo) • KENSAURUS account phase 2/3 - referral + quota services (growth) • Apex deep links for all 4 apps + KENSAURUS foundations (growth) • Reject unverified WebAuthn responses [skip mobile] [skip ota] (#193) (passkeys) • Supersede a staged rollout before publishing [skip mobile] [skip ota] (#188) (ota) • Accept null rollout after promotion; hourly sessions [skip mobile] [skip ota] (#187) (ota) • Hold promotion when no telemetry arrives [skip mobile] (#184) (ota) • Declare Kotlin 2.1.20 so expo-updates' KSP matches the compiler [skip mobile] (#183) (mobile) • Every fresh sign-in failed to load the household (#174) (mobile) • Move Ask and weekly insights off the retired Haiku 3; lock the week-metrics view [skip mobile] (#173) • Google sign-in from demo mode never loaded the workspace; cut PowerSync storage (#172) • Restore Cooler Heads and the apps-only siblings rule that #169 reverted [skip mobile] (#171) (spine) • Restore the spine, catalog and CI changes #169 reverted (#170) • Google secret check, corrected runbook, one probe [skip mobile] (auth) • Generate against kenji, not the deleted project [skip mobile] (db-types) • Canary only follows to Google, per-request timeouts [skip mobile] (auth) • Bridge touches the glot-it app link server-side [skip mobile] (kensaurus) • Answer CORS preflight on browser-callable functions (#138) (kensaurus) • Shared auth-delete guard, entitlement expiry, ingest alias, wallet hardening, anon revoke (#136) (kensaurus) • Refund quota on provider failure (#124) (wallet) • Five authenticated routes were indexable, two unprotected (#120) (seo) • Robots.txt comments broke the CloudFront Function size cap (#117) (seo) • Four AI crawlers were exempt from every apex Disallow (#114) (seo) • Align KENSAURUS entity @id to canonical kensaur.us/#org (seo) • Cheaper kenji cron, embeddings off transactions, filtered Realtime (#176) • Keep PowerSync on the Free plan [skip mobile] (#175) (sync)

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:

    • Financial Info
    • Contact Info
    • User Content
    • Identifiers
    • 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
  • 77.2 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
Age Rating
4+
Copyright
  • © 2026 kensaurus LLC