Argue about money less.
Talk about it once a month.
Up to five people, one shared ledger. Toggle personal vs household scope below.
One ledger, different views
- Restaurant Kabi · with MioCulture−¥12,800
- Blue Bottle CoffeeWant−¥620
- Life supermarketNeed−¥6,120
- NetflixCulture−¥1,490
- Kinokuniya · Ghibli bookCulture−¥2,640
- Muji · storage boxesWant−¥3,980
- Rent · NakameguroNeed−¥168,000
Audit log · just now
Mio added Life supermarket · ¥6,120 (Groceries)
Private entries stay private. Shared entries are visible to everyone in the household. Every change is logged — so "who spent what" is never a question.
Household money fights often start when two people remember different ledgers — groceries in one head, subscriptions in the other.
yen-yen gives the household one shared ledger. Every spend anyone enters lands in the same monthly view. The end-of-month conversation starts from a number you both already trust.
The four-question habit helps too: “was this a need or a want?” is gentler when the app asks it.
It works without handing over anyone’s bank password — there’s no bank login at all. Each person logs what they spend, or pastes their own statement.
A solo ledger is free forever. The household plan is $3/month for up to five people — see pricing.
Claim a founder spot.
Install on your phone — the demo runs straight from the app icon. Founders get household sharing, statement import, and Ask included. If it isn't for you, walk off with no email left behind.
No card. First 100 households only.