What we’re shipping,
and what’s next.

First public release covering Shinjuku, Shibuya, Tokyo, and Shinagawa with verified routes, exits, and accessibility.

Log PSA and CGC slabs by cert number and pull live eBay price history for the exact grade you hold. The app is now under review in the App Store.

Accounts, live index pulls, personal market notes, and member-only deep dives.

USD/JPY purchasing power over time, with country-specific CPI adjustment.

An archive of Japanese Domestic Market classics: specs, production history, and rarity.

SlabLedger has been submitted to the App Store and is now awaiting review. Once approved, it'll be available for download on iOS.

New branding, new momentum. SlabLedger's identity has been refreshed and the build is picking up speed — cert-number logging, live pop-report pulls, and the eBay price-history layer are all in active development.

The graded-collection tracker has a new name. Same app, same team, sharper focus: a ledger for your slabs, not just a vault. All links now point to slabledger.io.

Every transfer, exit, and elevator path through Shinjuku Station has been walked, timed, and re-checked. Step counts and accessibility routing are now live for all 53 station exits.

A single roadmap page for every app, tool, and series — with status, target window, and what each one does.

You can now log PSA and CGC slabs by cert number and the app pulls back grade, label, and pop-report data automatically.

Free, no-account calculator with contributions, real-vs-nominal toggle, and a long-view chart.

First op-eds in the Mechanisms series — how the machinery actually works, written for the long view.

kodamalabs.io goes live with the Outlook, the calculator, and the early launch roadmap.