Help

Questions and answers.

Getting started, your documents and money, AI and privacy, plans and payment. Still stuck? Write to us, a real person answers.

Getting started

Your first document in three steps

1

Download and open

Install the app from the Download page, open it and write a note. That is already the free plan. Your files are in Documents\YourBrain2.

2

Add your AI key

In Settings > AI models paste an API key from OpenAI, Anthropic, Google or DeepSeek. Follow the AI privacy guide first so your documents are not used for training.

3

Drop in a bill

With Personal or Business Finance, fill the short profile of the account, then drop a PDF or a photo into its Inbox folder. The dashboard shows the result in a minute.

Documents and money

How the reading works

Which documents can it read?

Bills, receipts, payslips, official letters, bank advices and customer invoices, as PDF, scan or phone photo, in any language. Built-in rules for Switzerland, Germany, USA, Turkey and Pakistan.

What does "Please check" mean?

The AI read the document but a fixed rule could not confirm a number, a date or the currency. The document waits for you, outside the totals, until you confirm or correct it in one click.

Why does it ask for a profile first?

The profile tells the app who owns the account: name, country, account type. Below the minimum, reading is locked and documents wait, so a document of another person is never mixed into your numbers.

How are photos read?

Two AI models read the photo independently. Only numbers both agree on are recorded. Dates are taken only when printed on the document. There is no OCR.

Does it do my bookkeeping or taxes?

No. It prepares and organises. Your accountant checks your figures. The app never files anything for you.

Can I use it for my company?

Yes, with Business Finance: one account per company, invoices, payments, payroll, money to receive, and a package for your accountant.

AI and privacy

Your files and the AI

Where are my files?

In a normal folder on your computer. Plain Markdown, PDF and image files, plus a small local database. Nothing is uploaded to us. Back it up like any other folder.

What is sent to the AI?

Only the document or note you asked it to read, plus the short reading rules and the names from your profile. Your address, e-mail and date of birth are never sent. Private folders and the Secure Vault are never sent.

Which AI can I use?

Claude (Anthropic), OpenAI, Google Gemini and DeepSeek with your own API key. For financial documents a paid API project is required; free-tier keys are not accepted.

How do I keep my documents out of AI training?

Two settings in your provider account. The AI privacy guide shows every click with pictures.

Plans and payment

Money matters

Is Notes really free?

Yes, forever. No account, no card.

How do I unlock a plan?

Choose a plan on the Pricing page. Your licence key comes by e-mail; paste it into Settings > Licence and press Activate while you are online (needed once). One key works on Windows and Mac, on one computer at a time.

I am changing my laptop or computer. What do I do?

On the old computer first: Settings > Licence > Deactivate this device. Then on the new computer paste the key from your e-mail and press Activate. Do it in this order; a key that is already active on one computer is refused on the next. If the old computer is broken or gone, write to info@rexoh.com and we free it; a computer that has not checked in for 30 days frees its place by itself.

"Active on another computer" or "blocked"?

One licence runs on one computer at a time, so deactivate it on the other computer first (see above). A key used on three or more different computers is blocked automatically and every computer locks it; write to info@rexoh.com from the e-mail you bought with and tell us which computer you use, and we unblock it.

Can I cancel? Can I get a refund?

Cancel any time through the link in your receipt e-mail. The first payment can be refunded within 14 days; see Refunds.

What happens if I stop paying?

The locked features close. Notes and every file stay yours and readable.

Windows and Mac

The computer

Windows shows "protected your PC"

Click More info, then Run anyway. The installer is new and not yet signed. See Download.

Mac says the app cannot be opened

System Settings > Privacy & Security > Open Anyway, once. Or right-click the app and choose Open.

Can I use the same files on both?

Yes, if the folder is in a place both computers can reach, for example a synced folder. Open one computer at a time.

Phone?

Not yet. You can photograph a document with your phone and drop the picture into the Inbox folder on your computer.

Still stuck? Tell us.

The feedback form reaches a real person. Tell us Windows or Mac and the version in Settings.