About 02apps, the Two-Person Studio Behind Cash Book

Cash Book is made by 02apps, a two-person studio in Bulgaria. The legal entity on the invoices is Pattern Consulting OOD, which is the duller name and therefore the real one.

No investors. No growth department. No support desk in another time zone.

Two of us write the code, answer the email, and track our own spending with this app, which is how most of the bugs get found in the first place.

Why this app exists

Every tracker we tried died the same way. Not with a bang. Logging took just long enough to feel like a chore, we skipped a day, then a week, and after a fortnight the ledger had holes in it. A ledger with holes is worse than no ledger, because it still looks like the truth.

So the app started from one stubborn idea. Logging has to be fast enough that you actually do it.

You already know what you spent. You can say it out loud, or you are standing there holding the receipt. The app should listen instead of making you type. Voice came first. Then receipt snaps, then the Apple Pay automation, and the keypad stayed for the moments when three taps beat a sentence. Budgets, accounts and insights grew around all of that, in that order, because there is no point charting numbers nobody bothered to enter.

What we hold ourselves to

Your data is yours. Transactions live on your iPhone, synced to your own iCloud if you want that. No Cash Book account, no sign-up, no server of ours with your history sitting on it.

Numbers stay honest. One spending figure per period. A budget that turns red when you are over and stays red. Insights that compare this month against last month using your own transactions and nothing else. No streaks, no score, nothing that goes up because you opened the app more often.

And the app stays quiet. One number per screen, no feed, no badge begging for a tap. You open it, you see where the money went, you close it. The longer version of all this is the manifesto, where we write the promises down so you can hold us to them.

Say hello

Bugs, ideas, or a receipt the camera could not read: hello@02apps.com. It gets read by one of the two people who wrote the code, usually the one who broke it. If you would rather not wait, the support page has the fixes we end up sending most often. Everything else 02apps makes is at 02apps.com.