Central Brain — a short guide

Getting started

You pick what you want to track — an apartment, a house, vehicles, personal finances, subscriptions, receipts — and the tab bar is built from that. You can change the choice any time in Settings ▸ Sections; nothing is deleted, it just stops being shown.

The bar holds five sections. Enable more and Subscriptions move inside Finance as a switch at the top — the app tells you when that happens.

Vehicles

Add a vehicle with + and pick the make and model. Service intervals are prefilled from the drivetrain — an EV gets no oil and no spark plugs, but tire rotation, brake fluid and a battery check instead.

• ·The odometer — log the reading now and then; the app estimates the mileage in between and works out when a service is due.
• ·Done — after a service, tap the item and mark it done; its interval starts over.
• ·Technical inspection (STK), insurance, motorway vignette — dates a notification reminds you about.
• ·Fuel — optional; log it and you see the consumption and the cost per kilometer.

House and apartment

A property carries its inspections — chimney, gas boiler, wiring, lightning rod, sewage treatment, a well. You can keep the technician's contact details and the scanned certificate with each one, so next time you are not hunting for who you called last year.

Payments and subscriptions

A payment carries its due date, amount and Czech bank details, from which the app draws a SPAYD QR code — point your banking app at it and the order is filled in. It works the other way too: scan the QR code on an invoice and the payment creates itself.

Subscriptions are the same payments on a monthly or yearly cycle; at the top you see what they cost together per month and per year.

Receipts and warranties

This section is for what people photograph into their notes today and then fail to find.

• ·Scan a receipt — or pick a photo from your library; the shop, date and amount are read off it. The category is guessed from the name. Everything is editable — it is a suggestion, not a verdict.
• ·For whom — is free text: write the names you actually use at home.
• ·A photo of the item — pays off. A year later you recognize the shoes by sight long before you remember the model.
• ·Search — understands several words at once. “shoes” finds football boots and sandals as well, because it matches the category and not just the title; “shoes Decathlon” narrows it to one shop, “shoes 2026” to one year. The assistant answers the same questions the same way.
• ·A warranty claim — goes in from the button in the detail — or straight from the reminder: swipe it, tap View and choose File a claim. While the item is with the seller the days are counted; they are added to the warranty end date according to how you close the claim.

The assistant

A floating bubble, or the button on the Dashboard. Ask in a normal sentence — what the car insurance costs, when you last had the chimney inspected, where the receipt for those shoes is. It answers from your own data.

It runs entirely on the phone; no question is sent to a server. On devices without Apple Intelligence a simpler keyword mode takes over — the answers about your data stay the same.

Sharing and sync

Without Premium the data lives on the phone. With Premium it mirrors through your own iCloud between iPhone and iPad, and you can share the household with one more person, who then sees and edits the same records. You can give them read-only access instead.

We cannot reach your data; it is your iCloud, not our servers.

Where the deadlines come from — and how to change them

The app is built for the Czech market, so the defaults follow Czech rules:

• ·A 24-month warranty — more precisely, the period in which a consumer may report a defect that appears on the item (§ 2165(1) of the Czech Civil Code). For an item sold as used the parties may agree on twelve months (§ 2168); a business purchase is not a consumer sale, so the length is whatever you agreed with the seller. Hence the 24 months / 12 months / no warranty switch on a receipt.
• ·Days in a claim — where the buyer reported the defect legitimately, the period does not run for as long as they cannot use the item (§ 2165(4)). The app adds those days to the end date according to the outcome you record; a rejected claim leaves the date alone.
• ·A replacement — the app then counts the warranty again from the date of the exchange. That is the app's default behavior, not a quotation from the statute; if your seller tells you otherwise, overwrite the date.
• ·Inspections — a chimney yearly (government regulation 34/2016 Coll.), a solid-fuel boiler and gas pipework every three years (Clean Air Act 201/2012 Coll.; decree 85/1978 Coll.), a lightning rod every four years for installations from 2009 (ČSN EN 62305) and five for older ones (ČSN 34 1390), wiring every five years (ČSN 33 1500), a domestic sewage plant every two.

None of those numbers is fixed. Switch the warranty to 12 months or turn it off, set the end date by hand, put an inspection on your own cycle. If your seller gave you five years, write five years — which is what makes the app usable outside Czechia too.