Legal
Last updated: 1 October 2026
These Terms and Conditions govern your use of M3XI’s products — the CallMe app and M3XI Spatial — and the M3XI website (collectively, the “Platform”), operated by M3XI LTD, company number 17425819, 128 City Road, London EC1V 2NX (“we”, “us”, “our”). By using the Platform, you agree to these Terms. If you disagree, you must not use the Platform.
CallMe puts you on live calls with people you have not met, so these come before everything else on this page.
The full rules are in 13.3, and what happens to a report is in 13.4.
CallMe is an app for meeting new people on live calls; section 13 adds terms that apply only to it. M3XI Spatial is an online tool for estate and letting agencies to create, publish and host property walkthroughs; section 14 adds terms that apply only to it. Our other products, Cornelia and AutoUV, are on hold; see section 15. We provide tools and services — we do not guarantee any particular outcome, whether that is a match, a conversation, an enquiry or a sale.
You must be legally capable of entering binding agreements and meet the minimum age for your region and the relevant app store. CallMe is only for adults aged 18 or over, who must pass an ID check before calling anyone (13.1). M3XI Spatial is for businesses and the people who work for them. By using the Platform, you confirm you meet these requirements.
You may need an account to use certain features, and some features need a subscription, a plan or an in-app purchase. You are responsible for all activity conducted through your account, and for keeping your sign-in details secure.
You retain ownership of the content you submit — on CallMe, your photographs, cards and profile text; on M3XI Spatial, your scans, photographs, floor plans, notes and branding — subject to the licence below.
To run the Platform, you grant M3XI a worldwide, non-exclusive, royalty-free licence to host, process (including automated and AI-assisted processing), display, transmit, and create incidental copies of your content, for as long as it is on the Platform and as needed afterwards to meet our legal obligations. For a CallMe card design that other people hold copies of, the licence lasts as long as 13.8 says. You confirm you have the rights to grant this licence.
Do not upload content that infringes others’ IP or privacy rights. We may remove infringing or unlawful content.
Some features use artificial intelligence: building walkthroughs, reading floor plans and rewriting prompts in M3XI Spatial. In CallMe, pictures and still frames from video calls are checked by an automated image moderation service; CallMe does not use AI to listen to calls or to read what members write. AI output is approximate and can be wrong. A generated walkthrough is a visualisation, not a photograph, record or survey of a property. Always confirm material facts independently.
We may suspend or terminate accounts for violations of these Terms or applicable laws, and may remove content that violates these Terms. Where it is safe and practical to do so we will tell you why. How this works on CallMe, including our promise to act on every report within 24 hours, is in 13.4.
You agree to indemnify and hold harmless M3XI, its officers, employees, and affiliates from any claims, damages, or expenses arising from your use of the Platform or your violation of these Terms.
These Terms are governed by the laws of England and Wales. Any disputes shall be subject to the exclusive jurisdiction of the courts of England and Wales.
We may modify these Terms. We change the date at the top of this page when we do, and notify you in the app or by email of material changes. Continued use after a change takes effect constitutes acceptance.
For Terms-related enquiries: support@m3xi.com.
To report someone or something on CallMe, or anything that worries you there: safety@m3xi.com. A person reads every email, and a report sent there is reviewed within 24 hours, like a report made in the app.
These apply to CallMe in addition to the terms above. Where they conflict, these apply to your use of CallMe.
CallMe is for adults aged 18 or over. You must complete identity verification — an ID document, a liveness selfie and a face match — before using any calling feature. You must not create an account for anyone else, use another person's identity document, or attempt to defeat the verification check. Doing so terminates your account permanently.
Before you can use CallMe, the app asks you to agree to these Terms, including the community rules in 13.3. If you do not agree, you cannot use it.
CallMe matches you with another verified adult for a live call, or seats you at a table with a few people around a topic. Calls open on voice, and video turns on only when both people agree. Free accounts get a limited number of calls each day; you can earn more by watching a rewarded advert or completing achievements, or remove the limit with Premium. We do not guarantee that you will be matched, that anyone will connect with you, or any particular outcome from a call.
CallMe has zero tolerance for objectionable content and for abusive users. On a call, in a chat, at a table, on a poster, in a snapshot, on a profile or anywhere else in the app, you must not:
Video is mutual opt-in. Pressuring someone to enable video is a breach of these terms.
How to report. You can report what you see in CallMe from where you see it: on every call (the shield in the corner), and on every chat message, table, poster, snapshot, card design and profile. You can also email safety@m3xi.com, with or without the app. A report never tells the other person who made it.
Blocking and hiding. You can block anyone from a call, a chat, a table, a poster, a snapshot or their profile. Neither of you can then be matched with the other or join a call or table the other is in, and any friendship between you ends. You can unblock someone later in Settings. You can also hide a post from your own feed straight away, without reporting anyone.
What we do, within 24 hours. A person on our safety team reviews every report within 24 hours of it being made. If the report shows content or behaviour that breaks these Terms, we remove the content and remove the account that posted it from CallMe. Serious direct harm to another person — unwanted sexual content, nudity, sexual threats or pressure, threats of violence, sharing private details, or anything sexual involving a minor — is a permanent ban. Other breaches, such as hate, slurs, harassment or scams, lead to a suspension of a few days to a few weeks, longer each time. A banned or suspended account is removed from any call or table and cannot use CallMe until the ban ends. A report that someone sounds underage, or of sexual content or threats, can pause the other account at once while we check. We may act on a single serious report without prior warning, and may refer a matter to the police. Where a ban is applied, the associated records are retained in order to enforce it.
Automated safety tools. Calls are never recorded or transcribed, and nothing listens to what is said on them. Some things are checked automatically, as described in the privacy policy: what you write for other people is checked against CallMe's own lists of words and patterns as it is saved, pictures you post are checked before anyone sees them, and when video is on, still frames may be checked for nudity. These checks can hide or refuse words, give a strike, and remove you from a video call with a provisional ban, without a person being involved first; repeated strikes lead to a warning and then a suspension. Only a person on our safety team can make a ban permanent, except where a banned person opens a new account. Explicit video is hidden from the other person at once.
One person, one account. A ban applies to the person, not only the account. Creating another account after a ban — with a different email address or otherwise — is ban evasion, and the new account will be banned as well.
Appeals. Every decision comes with a reason and a reference. You can appeal at m3xi.com/appeal or by emailing safety@m3xi.com from the address you sign in with. If the evidence shows a decision was wrong, we lift it. A person on our safety team reads and decides every appeal, and gives you the reason if they turn it down.
You keep ownership of your photographs, MeCards and profile text. You grant M3XI a worldwide, non-exclusive, royalty-free licence to host, display and transmit that content to other users in order to operate the service, including automated safety scanning. You confirm you own or have the right to share everything you upload, including any image of another person. Card designs you make in the creator studio have their own terms, in 13.8.
Premium is a recurring subscription billed by Apple or Google and renews until cancelled. Cancel through your App Store or Google Play account; cancelling stops future renewals and does not refund the current period.
Coins are bought in packs through Apple or Google and spent on optional extras inside CallMe. Coins have no cash value, cannot be exchanged for money, and cannot be sold or transferred to another account. Unused coins are lost if you delete your account.
Refunds for Premium and coins are handled by the store you bought them from, under its own policy.
Invites. When a friend joins CallMe through your invite, creates a new account and passes the age check, you receive three days of Premium, and you are added as friends. Each invite link works once, for one person, and expires after 14 days if unused. Only new accounts, in their first week, can use an invite; each person can be invited once, however many accounts they make; and invite Premium cannot be banked beyond 30 days or exchanged for anything. We may withhold or remove invite rewards obtained by abusing the scheme.
Verification confirms that a person is a real, unique adult. It is not a background check and does not make anyone safe. Take the usual precautions: do not share financial details or your home address, be careful about revealing where you live or work, and meet in public if you choose to meet at all. You are responsible for your own decisions about who you speak to and what you share.
CallMe Premium members who agree to the creator terms in the app can design card art in the creator studio at m3xi.com/design, and give copies of it to people they have met on CallMe. This section covers every design and every copy. The creator terms in the app say the same things in fewer words.
It has to be your own work. Everything in a design must be drawn, painted, photographed or otherwise made by you. It must not contain characters, logos or artwork that belong to someone else, anything traced or copied from them, or a photograph of a real person. It must not carry a QR code or barcode, a web address, a handle, a phone number or an email address. By sending a design, you confirm that it is yours and that showing it in CallMe infringes nobody’s rights.
It stays yours. You keep ownership of your design. You give M3XI a worldwide, non-exclusive, royalty-free licence to store and check it, show it in CallMe, and make and show the copies you give, on the cards of the people who keep them. Because those people rely on their copies, this licence lasts for as long as anyone holds one — including after you retire the design, after your Premium ends and after you delete your account.
A copy is a licence, not something to trade. Each design is an edition of at most twenty copies, and no more are ever made. A copy you are given is a personal, non-transferable licence to wear that design on your own cards in CallMe. It gives you no rights in the design itself, and it cannot be sold, swapped, passed on or copied. It stays with you if its creator retires the design or leaves CallMe, and ends only if the design is taken down or you delete your account.
A person reads it first. Every design is checked by automated tools — an image check and CallMe's own word check — and then read by a person on our team before it can reach anyone; the privacy policy explains how. You are told the outcome either way. If your Premium ends, you cannot send new designs, but copies you have already given stay where they are.
What gets a design taken down. We take a design down if it copies someone else’s work, breaks the rules in this section or in 13.3, is used to ask anyone for money, credits, photographs or anything else, or is written to one particular person. Every copy goes with it. The people who held one are told, and nothing else about their accounts changes. If it keeps happening — designs that break these rules, or designs taken down for copying other people’s work — the creator tools close on your account.
If your work has been copied. Email safety@m3xi.com, as set out on our contact page. A person reads every report. If we take a design down after a report and its creator believes it is their own work, they can email the same address with what shows it is theirs, and a person will look again.
No cash-out. Making designs is not paid work, and we do not pay creators in money. Copies are given, never sold. Nothing to do with a design — given, received or earned — has a cash value or can be exchanged for money, and you must not sell, or offer to sell, designs or copies anywhere else.
These apply to M3XI Spatial in addition to the terms above. Where they conflict, these apply to your use of M3XI Spatial.
M3XI Spatial is a business service. By using it you confirm you are acting for a business, such as an estate or letting agency, and not as a consumer. If you use it on behalf of an organisation, you confirm you are allowed to accept these Terms for that organisation.
M3XI Spatial is sold as a business plan. What a plan includes — for example the number of live walkthroughs, seats and build credits — is what we agree with you. Build credits are used to build walkthroughs in the Spatial Engine; they have no cash value and cannot be transferred to anyone else. Scanning a property for you is a separate service, quoted per site.
Before you scan, photograph or publish a property, you must have the permission of whoever is entitled to give it — usually the owner, vendor or landlord, and any occupier. Take reasonable care that people, and private details such as documents and photographs, are not captured. You are responsible for everything you upload and publish.
A walkthrough built from photographs, a floor plan or a description is AI-generated. It carries an AI-generated label, which you must not remove, hide or crop out. You must not present a generated walkthrough, or any part of one, as a photograph or record of a real property, and you must not use one in a way that could mislead a buyer or tenant about a property. For a property that is on the market, use a scan or a 360° tour.
You are responsible for making sure your listings comply with the law that applies to them, including consumer protection law and the rules on what information must be given to buyers and tenants.
Figures M3XI Spatial shows about a scan, such as walkable area, ceiling height or how much of a room was captured, are calculated automatically from the scan and are approximate. They are not a measured survey and must not be published as certified floor areas or dimensions.
We deliver enquiries sent from your walkthroughs to your dashboard, and by email where email delivery is set up. You are responsible for handling the personal details in them lawfully, and for replying.
Plans run month to month. You can cancel at any time by telling us, and unless we agree otherwise the plan ends at the end of the month you have paid for, after which we stop hosting your walkthroughs. You can unpublish or delete any walkthrough or tour yourself at any time.
Files for walkthroughs built in the Spatial Engine are kept in a public file store: anyone with the exact address of a file can open it, including while a walkthrough is a draft. Property tours made with our capture tool use private storage. See the M3XI Spatial privacy policy.
Cornelia and AutoUV are on hold. We are not offering them, and they cannot be downloaded, trialled or signed up to. These Terms continue to apply to any use of them before they were paused. If you hold an AutoUV licence, or have a question about a charge, email support@m3xi.com.
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