A plain-language privacy policy. No dark patterns. No 14,000-word PDF. Read in under five minutes.
"We don't track your location. We don't run ads. We don't sell your data. We collect what is necessary to make the platform work — and nothing more. The only personalisation here is your friends."
Synchronize is operated by The Connection Catalyst LLC ("we", "us"), a limited liability company registered in the State of Delaware, United States.
Postal address: 108 West 13th Street, Wilmington, Delaware 19801, United States
Get in touch: use our contact form — for privacy questions or data requests, select "Data or privacy request" and it reaches the right person.
We are the data controller for the personal information described in this policy. Where we use third-party services for hosting, form handling, message delivery and similar, we treat those vendors as data processors under our instruction. The full list is at the end of this document.
seeker, practitioner, or business) — and any optional details you provide, so we can tailor onboarding when you join.Bookings and reviews are coming. When they launch, we'll add them here before we switch them on.
If you join our closed beta, the email address you give us is passed to Apple (via TestFlight, for iOS) or Google (via Firebase App Distribution, for Android) so they can deliver the build to your device. Those services also send us crash and installation diagnostics — enough to know a build is broken, not enough to know who you are. Both are listed in the vendor list at the end.
We do not track your location in the background. When you post a plan, it shows a place and a time, and it disappears after 24 hours.
This is the one part of Synchronize where we ask for something genuinely sensitive, so it is worth explaining properly rather than in a single reassuring line.
On your phone, before anything is sent. When you allow contact matching, your device takes each phone number in your address book and turns it into a scrambled code — a one-way hash. The real numbers never leave your device. Neither do names, photos, or anything else from your address book. We could not reconstruct your contact list if we wanted to.
What reaches us. Only the codes. Your own number is stored the same way — as a code, not a number.
How a connection is made. We look for matches in both directions. You are only connected to someone when your codes contain theirs and theirs contain yours — when you genuinely already have each other's number. A one-way match creates nothing.
We keep the codes. We do not delete them after checking. We keep them so that when someone you already know joins months later, the connection surfaces — without asking you to re-share your contacts every time. That is the whole reason for keeping them.
What that means honestly. A code is not the same as a phone number, but we will not pretend it is anonymous either. Phone numbers follow predictable patterns, so a code should be treated as personal data about you — and we treat it that way. It is covered by every right in this policy, including deletion.
Never sold, never shared. These codes are not sold, not shared with advertisers, not handed to data brokers, not used to build advertising profiles. They do one job: connecting people who already know each other.
Turning it off. You can switch off Auto-sync contacts in Settings at any time, which stops any further syncing. To have the codes we already hold deleted, ask us and we will remove them.
We use your information to: provide the platform, communicate with you about your account, prevent fraud and abuse, comply with legal obligations, and (with your consent) send you product updates.
We do not use your data to train AI models. There is no algorithmic feed. We don't suggest strangers: who you see comes from the contacts you chose to match, and their friends — nothing else.
We run no behavioural analytics in the app. On the website we use Simple Analytics (section 5) — aggregate only, never who you are.
Under GDPR and UK GDPR we have to tell you why we are permitted to process your data — not just what we do with it. In plain terms:
This website sets no cookies. Not for analytics, not for advertising, not for tracking of any kind. That is also why you have not seen a cookie banner — we have nothing to ask consent for.
We use Simple Analytics, a privacy-first analytics tool that works without cookies and without local storage. It does not build a profile of you, does not follow you between sessions or devices, and does not collect anything that identifies you personally. It briefly reads your IP address to work out which country you are in, then hashes it — the address itself is never stored. Its servers are in the EU.
What we learn from it is aggregate: how many people visited a page, which site sent them, roughly what screen size they used. Never who you are.
Other members see what you choose to share with them — your posts, your RSVPs, your reviews (once they launch), the friends you've connected to. The defaults are conservative; you can tighten or loosen any of these in your settings.
We share with third parties only when:
Wherever you live, you have the right to:
To exercise any of these, use our contact form. We respond within 30 days. There is no charge.
Synchronize is currently for people 18 and over. We do not knowingly collect data from anyone under 18. If you believe a child has signed up, please use our contact form and we will act promptly.
We're thinking about this carefully — and we want your input.
Loneliness among teenagers is one of the most significant and under-addressed wellbeing crises of our time. We believe a platform built around trust, in-person connection, and community could be genuinely meaningful for young people — not just adults.
But opening Synchronize to under-18s is not something we would do lightly. It carries serious responsibilities: around data protection, safeguarding, parental consent, practitioner suitability, and the nature of the spaces and events young people could access. We'd want to get this right before we get it at all.
Some of the questions we're working through:
We don't have all the answers yet. If you're a teenager who feels the loneliness of not knowing how to find your people — or a parent thinking about what safe, meaningful connection looks like for your child — we'd genuinely love to hear from you. Your perspective will shape whether and how we build this.
Should Synchronize be available to young people (16+)?
This poll is anonymous — we record only your vote and who you are answering as.
Our application database (Supabase) and sign-in emails (Resend) are hosted in London, UK, and the EU. Simple Analytics stores its data in the EU. Some vendors — Apple, Google, Stream and Expo — may process data in the United States. Where personal data leaves the EU or UK, we rely on Standard Contractual Clauses or another lawful transfer mechanism agreed with each vendor.
We will email you at least 30 days before any material change takes effect. Minor clarifications (typo fixes, structural improvements) are noted in a changelog at the bottom of this page.
We keep this list short on purpose. Every vendor here operates as a processor under our instruction, under a data processing agreement.
If we add a new vendor, we name it here and note it in the changelog below.
For any question about your data, this policy, or how to exercise your rights — use our contact form and select "Data or privacy request". We respond within 30 days. We treat every message as a person, not a ticket.
If anything in this policy is unclear, ambiguous, or feels evasive — that is a bug. Tell us. A privacy policy you can't understand is a privacy policy you can't trust. Write to us and we'll fix the wording.