yen-yen: Kakeibo Budget App

Name: yen-yen: Kakeibo Budget App
Author: kensaurus

Livekensaurus5 apps · 701 installsFinanceFreeIn-app purchases: $3.79 - $74.99 per itemapp.yenyen

Kakeibo expense tracker for couples: log in seconds. No bank login, no ads.

Alert me ★ Watch Open in Play ↗

Total installs: 31
Installs / day: —
Rating: —★
Released: 11 May 2026
Last update: 10 Oct 2026
Countries: —

Install history

exact counter from Google Play

30dAll

Installs per day · last 90 days

Change timeline

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

Country data will be available soon.

We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

Top chart positions

Not in any tracked top chart.

App manifest

Read this app's manifest from Google Play: permissions, declared SDKs, components and AdMob app ID. Saved analysis appears here automatically.

Data safety

declared by the developer on Google Play

No data shared with third parties
Collects data Personal info, Financial info and 5 others
Data is encrypted in transit
You can ask for your data to be deleted

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Permissions

18 in 7 groups

9 Sensitive3 Notable6 Routine

What this app can do with your phone

Know roughly where you are, using mobile towers and Wi-Fi networks
Know your exact location using GPS, Wi-Fi and mobile networks
Use your camera to take photos and record videos
Record sound using your phone's microphone
Read photos, videos, and other files saved in your phone's shared storage
Add, change or delete photos, videos and other files in your phone's storage

LocationSensitive2

Access to where your device is, using GPS or network signals

Know roughly where you are, using mobile towers and Wi-Fi networksapproximate location (network-based) · ACCESS_COARSE_LOCATION
Know your exact location using GPS, Wi-Fi and mobile networksprecise location (GPS and network-based) · ACCESS_FINE_LOCATION

Photos/Media/FilesSensitive2

Access to photos, videos, music and other files stored on your device

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

StorageSensitive2

Access to files, photos and media saved on your phone's storage

Read photos, videos, and other files saved in your phone's shared storageread the contents of your USB storage · READ_EXTERNAL_STORAGE
Add, change or delete photos, videos and other files in your phone's storagemodify or delete the contents of your USB storage · WRITE_EXTERNAL_STORAGE

CameraSensitive1

Access to your camera to take photos and record video

Use your camera to take photos and record videostake pictures and videos · CAMERA

MicrophoneSensitive1

Access to your phone's microphone to record sound

Record sound using your phone's microphonerecord audio · RECORD_AUDIO

Wi-Fi connection informationRoutine1

Access to details about Wi-Fi networks your device sees or uses

See whether Wi-Fi is on and details of the network you are connected toview Wi-Fi connections · ACCESS_WIFI_STATE

OtherSensitive9

Access to miscellaneous device features that don't fit other categories

Show its own windows or bubbles on top of other apps you are usingdraw over other apps · SYSTEM_ALERT_WINDOW
Change volume and choose which speaker or headset plays soundchange your audio settings · MODIFY_AUDIO_SETTINGS
Start itself automatically as soon as your phone finishes turning onrun at startup · RECEIVE_BOOT_COMPLETED
Keep your phone's processor or screen from going to sleep, which can use more batteryprevent device from sleeping · WAKE_LOCK
Check whether you are online and whether you use Wi-Fi or mobile dataview network connections · ACCESS_NETWORK_STATE
Connect to the internet to load content and send datafull network access · INTERNET
Make your phone vibratecontrol vibration · VIBRATE
Check with Google Play that you got this app legitimatelyGoogle Play license check · com.android.vending.CHECK_LICENSE
Receive push messages sent from the app's servers over the internetreceive data from Internet · com.google.android.c2dm.permission.RECEIVE

Show all 7 permission groups ▾Show fewer ▴

Sensitive = can reach personal data, location, camera/mic or act on your behalf. Notable = changes how your device behaves. Routine = normal for almost every app. Source: Google Play's permission list for all versions of this app.

Store listing

Full description

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 (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), 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: [email protected] Part of KENSAURUS — small apps, no sign-up wall. One optional account works in all of them.

What's new

Under-the-hood updates make the app faster and steadier. Insights now shows spending by group; tap a group to see its categories. Card and bank logos now appear on your accounts.

Growing in Finance

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