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    Central Brain Support

    Get in touch by email about anything Central Brain. We write in English and Czech.

    Contact

    apps@techwizards.cz

    We reply within 2 business days.

    Frequently asked questions

    Where is my data stored?
    On your device. With Premium, also in your own private iCloud. We have no access to it and we run no servers.
    Does the app work without Premium?
    Yes, fully. Without Premium everything is stored locally and you can export a backup at any time.
    Where are my questions to the AI assistant sent?
    Nowhere. The assistant runs on Apple's models directly on your device.
    Where do the receipt photos end up?
    On your device. With Premium, in your own iCloud as well. They go nowhere else, and the text recognition that reads a receipt runs on the phone too.
    How long a warranty does the app count?
    24 months by default — in Czechia that is the period in which a consumer may report a defect that appears on the item (§ 2165 of the Civil Code); for an item sold as used the parties may agree on twelve (§ 2168). On any receipt you can switch to 12 months or turn the warranty off, and you can set the end date by hand. It is a record, not legal advice.
    How do I attach a contract to a payment?
    Open the payment's detail, go to Documents and tap +. You can scan the document, take a photo, or pick a file.
    Where do I enter my car insurance?
    Vehicles → the car → Payments → +. The payment counts toward the car's monthly costs and toward its cost per kilometer.
    Why is a recurring payment counted in earlier years too?
    It has no start date. Edit the payment and set “Paying since” — months before that date are not counted in the overviews. New payments get one automatically: they start on the day you enter them.
    How do I correct the day a payment was really paid?
    In the payment's detail, find Payment history and tap the record. You can change the day it was paid and the amount; an earlier payment is added through Add a record.
    Where do I log an overpayment returned after an energy statement?
    On the payment it belongs to: Payment history → Add a record → Log a refund. A refund is a separate record and is not counted in the monthly overviews — those show what is due, not the balance of your account.
    Which calendar do due dates go to?
    The system's default calendar, as an all-day event with an alert 7 days ahead at 9:00 a.m. The app has write-only access to Calendar and does not read your calendars, so it offers no choice. For Reminders, you pick the list in Settings → Reminders & notifications.
    How do I hide amounts when I show someone my phone?
    Tap the eye next to the total, or turn the phone face down and back. In the app switcher amounts hide by themselves.
    How do I restore a purchase on a new device?
    In the app: Settings → Restore purchases.
    How do I cancel the subscription?
    iOS Settings → Apple ID → Subscriptions.
    What happens to my data if I delete the app?
    Local data is erased together with the app. With Premium a copy stays in your iCloud until you delete it there.