Simpulan: making loops of debt disappear

The problem

People end up owing each other in loops. You owe your cousin, your cousin owes the corner shop, and the corner shop owes you. The three debts cancel perfectly, but nobody can see it, because each person only knows their own side.

The plan I wrote

Each person records what they owe and are owed. The other person taps once to agree, and after that neither of them can change the record.

The app searches the whole group for loops and tells everyone in one: this much can disappear right now, you end up exactly as well off as before, and nobody pays anybody. A clearing happens only when every person in the loop approves it. No money ever moves through the app.

The build

AI coding agents built it from my written specification. My work was the specification, the tests it had to pass, and the review.

The proof

The signed release build passed on both test devices — an Infinix phone and a Galaxy Tab S3 — including a real two-person pairing, agreement on both sides, and a clearing that everyone approved, all still there after a cold restart.

The security checks passed too: sessions renew themselves, and replayed or forged requests are refused. Zero crashes on either device.

The launch

Live on Google Play, with its privacy policy, child-safety standards and store listing checked before release.