About 02apps Studio, the Makers of Cash Book | Cash Book

Cash Book is made by 02apps studio, an independent app studio whose legal entity is Pattern Consulting OOD, registered in Bulgaria. No investors, no growth department, no outsourced support: a small team that builds trackers people actually keep using, and tracks its own spending with this one.

Why this app exists

Most expense trackers fail for one reason. Logging takes long enough that you stop doing it, and a ledger with gaps is worse than no ledger, because it looks like the truth. Cash Book started from a single idea: logging has to be so fast that you actually do it.

You already know what you spent. You say it out loud, or you hold the receipt in your hand. So the app should listen, not make you type. Voice logging came first, then receipt snaps, then Apple Pay auto-logging, and the keypad stayed for the moments when three taps are the fastest thing. The budgets, accounts and insights grew around that.

The three principles

Say hello

Bugs, ideas, or a receipt the camera could not read: write to [email protected]. Every email is read by the people who wrote the code. If something is broken, the support page lists the fixes we send most often. The rest of what 02apps makes is at 02apps.com.