An economy you can see.
A life you can understand.
Yumo Yumo exists to bring economic evidence closer to everyday life — connecting public price memory with private spending clarity.
Make everyday spending legible.
We turn receipts into structured, source-aware memory: a private record for the person who paid and, when an observation is eligible, a useful signal for a wider price commons. The goal is simple — better decisions built from evidence, not guesswork.
An open economy with personal boundaries.
We imagine an economy where price information is inspectable, contribution is recognized, and useful intelligence is not reserved for institutions. Public evidence should stay close to its source; personal context should stay under the person’s control.
Prices move. People live with the consequences.
Markets publish indexes, but households experience the economy one receipt at a time. Most tools show an isolated total and stop there. We started Yumo Yumo to close that distance — showing what changed, preserving where the evidence came from, and helping people understand the patterns inside their own spending.
Open does not mean exposed.
An open economy means the public layer is legible: provenance, dates, original currencies, and verification paths remain visible. Personal receipts stay private. Only eligible, de-identified observations can strengthen shared price memory, with the original context kept close to every public record.
Useful data should create useful value.
A valid receipt can do two jobs: help one person understand a purchase and add a grounded observation to the network. Contribution follows published rules, quality checks, and trust controls. Where the product rules allow it, a verifiable blockchain-backed record connects that contribution to its accounting history — without secret minting or promises of investment return.
Explore the contribution layer ↗Built from economics, protocol research, and lived prices.
Yumo Yumo was founded by Uğur Alacakapı, an international economics graduate with eight years of blockchain-protocol research experience. The project brings those threads together: understand the system, preserve the evidence, and make the result useful to the person standing at the checkout.
LinkedIn profile ↗A small company building a durable public layer.
Yumo Yumo Inc. is incorporated in Delaware, United States. We build software for receipt processing, price observation, and household-spending analysis — with a long-term focus on inspectability, privacy, and contribution that can be checked.
Grounded in the places people actually spend.
Field research in Southeast Asia informs receipt-format support, merchant resolution, canonical taxonomy, and product decisions. These observations shape the system; they are not presented as independent market claims.
Read the economic essay ↗Read the technical paper ↗