Privacy

MindFence works everything out on your phone. What leaves it: rough usage counts you can switch off in Settings, and the things you choose to share with friends if you pair. This page lists all of it.

This page covers the MindFence apps. The byRazLabs website policy covers the websites, separately. This site sets no cookies and loads nothing from anyone else, so there is no banner to click.

What never leaves your device

Which apps you block. You choose them in Apple's own picker. The system hands MindFence opaque tokens rather than names, so MindFence cannot tell which apps you selected, not on your device and not anywhere else. Nothing derived from them is transmitted.

How you use your apps. MindFence does not read your screen time, pickups, or launches. If that ever changes, you will be asked for permission first, it will be in order to show you something on your own screen, and what it finds will stay on your device like everything else in this section.

Where your places are. Saving a place stores its coordinates on your device, and the boundary is checked there. Coordinates are not transmitted, with one exception you take yourself: offering a saved place to a friend sends them that place, its name, coordinate and radius, so both phones can fence the same spot. Nothing shares a place you didn't offer.

What crosses, and only if you pair

Pairing with friends is optional and off until you set it up. If you do pair, your device publishes:

• The name you type for yourself when pairing. Call yourself anything; it is shown only to the people you pair with.
• The names of the places you are inside right now, meaning the words you chose, such as "home", with the time they were last confirmed.
• A random pairing code that links your device with a friend's.
• A place you offer them: its name, coordinate and radius, so both phones can fence the same spot.
• The name you gave a rule, when you put that rule in a pact or ask a friend for fifteen minutes past it.
• Your friends' display names, kept in your own private part of the iCloud container so your list survives a new phone.

That is the whole list. Never app tokens, never usage, never a place you didn't offer. Unless you offer one, a friend's device learns the word "home" and nothing about where home is.

This is stored using Apple's CloudKit, in the app's iCloud container. Apple acts as our processor for this data and may hold it on servers outside the UK; Apple's developer terms include the safeguards UK law requires for those transfers. byRazLabs runs no servers and keeps no database of its own, so we cannot read, sell, or lose what we never receive.

We process these fields because they are what makes pairing work; in the language of UK data protection law, the lawful basis is performance of a contract, the service you asked for by setting pairing up. For the usage counts below, it is our legitimate interest in keeping the app working, and the switch in Settings is your objection, honoured in advance.

Invitation links

An invitation is a random token in a link. It can be exchanged once, and it's good for a day. Claiming it is what spends it: a link that's forwarded, screenshotted, or read over your shoulder is worth nothing once someone has already used it, whether that took a minute or most of the day.

How long things are kept, and how to delete them

Your rules, places, and counts live on your device and are yours to delete in the app at any time. The pairing record, your display name and current place names, stays in the iCloud container for as long as you are paired, and unpairing deletes it. The usage counts, if you left them on, sit under a random identifier nobody can trace back to you, us included; deleting the app orphans it for good.

One order of operations matters: unpair before you delete the app. Deleting the app removes everything held on the device, but a pairing you never ended leaves its last record in iCloud. If that has happened, write to us and we will remove it.

To ask what is held about you, or to have it corrected or erased, write to hello@byrazlabs.com. Under UK data protection law you may also ask for a copy in portable form, or object to how it is used. The law allows us one month to reply.

The counts we do get

If you leave the switch on, MindFence sends us rough usage counts, such as which band your number of rules falls in and which band yesterday's blocked hours fall in, and diagnostic reports when something inside the app goes wrong, with crash summaries and no stack contents. Each send carries a random identifier minted on your phone, so one install's counts can be told from another's. It is not your Apple account, not an advertising identifier, and not linked to your name or anything else about you; we could not pick your rows out if we tried. The servers are in the EU. Turn it off in Settings ▸ Share anonymous usage and it stops.

Never in those counts: no place names, no coordinates, no app names or tokens, no rule names or sentences, no friend data, no calendar titles, and nothing about what you tried to open.

Awards, if you turn them on

Turn Game Center on and your award progress and blocked-time totals go to Apple's Game Center under your Apple account, where Apple's privacy policy applies. What a rule says, where you were, and what you blocked never go with them. Leave it off and nothing is sent.

What there isn't

No advertising. No tracking, and nothing shared with data brokers. No ad networks and no attribution. Beyond the counts above, no third-party code in the app. Your data is not used to train anything.

MindFence also counts a few things just for you, such as how often you met a blocked app and how often you turned back, and shows them on a screen you have to go and open. Those counts are kept on your device for 28 days and are sent nowhere.

What's in your calendar. If you write a rule about a calendar event, MindFence reads your event titles and times to check whether that event is happening right now. It never creates, edits, or deletes anything in your calendar. Full access is requested because the read-only-sounding alternative, write-only access, cannot read anything at all. Titles are matched on your phone and discarded. Nothing about your calendar is stored, logged, or sent anywhere.

MindFence does not ask for your contacts, your photos, your microphone, or your camera.

Children

MindFence is for adults managing their own devices. It is not a parental control product and is not intended for children.

Who is responsible

byRazLabs Ltd is the data controller. Registered in England and Wales under company number 16595979, registered office 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ. Data protection questions go to hello@byrazlabs.com.

You have the right to complain to the Information Commissioner's Office, the UK supervisory authority, at ico.org.uk.

Changes

If the app changes what it collects, this page changes with it and the date below is revised. This policy was last updated on 26 August 2026.