Oxygene Finance

Privacy Policy

Last updated: 5 October 2026

Before public launch. This policy describes the service as it works today. We may still change it before public launch, and if we do we will tell you.

The short version.

1. Who we are

Oxygene Finance is run by Oxygene Group Ltd. For the purposes of UK data protection law (the UK GDPR and the Data Protection Act 2018) we are the data controller for the personal data described here. We are registered with the Information Commissioner's Office, registration number ZB933043.

Oxygene Finance is a service of Oxygene Group Ltd, a company registered in England and Wales (company number 15954292). Registered office: A4g Suite Nepicar House, London Road, Wrotham Heath, Kent, TN15 7RS, United Kingdom.

Contact: privacy@oxygene.xyz. For anything else, see Support.

2. What we hold

Your account

Your household's finances — the part you enter

Everything in Oxygene Finance is information you type in or import yourself. Depending on which features you use, that can include:

We do not ask for, and you do not need to enter, bank account numbers, card numbers, passwords for other services, or National Insurance numbers. Nothing in the service needs them.

Technical information

Usage statistics

To see which parts of Oxygene Finance people use and where they get stuck, the website and the app tell us when certain things happen, and we count them. We collect this ourselves, on our own servers; no analytics company is involved.

Payments

Premium is not on sale yet. If you buy premium in future, the payment will be taken by a specialist payment provider. We will receive confirmation of the payment, the plan and its dates — never your full card number.

3. What we do not do

4. Why we use it, and our legal basis

What forLegal basis (UK GDPR Art. 6)
Running your account and the service you asked for — storing your figures, calculating with them, showing them back to you, sharing them with the people you choose, sending account emails (confirm your address, reset your password, an invitation you asked us to send). Contract — we cannot provide the service without it.
Keeping the service secure and working: logs, rate limits, locking out password guessing, detecting stolen sign-in tokens, error reports, backups, and checking for app updates. Legitimate interests — protecting you, other users and the service, and fixing faults.
Answering feedback and support messages. Legitimate interests — helping you, and improving the service.
Usage statistics (section 2): counting how the service is used, without figures, to improve it. Legitimate interests — improving the service. You can object at any time with the switch in Settings, which stops it at once.
Recording which terms you accepted, and taking payment for premium once it is on sale, with the records the law requires. Contract, and legal obligation (tax and accounting records).

Apart from health information (section 8) and the one opt-in in section 4a, we do not rely on consent, which means there is nothing hidden behind a consent box.

Financial information is not a "special category" under the UK GDPR, but we treat it with the same care, because it is some of the most sensitive information a household has.

4a. Premium plans and launch news — only if you ask

Some parts of Oxygene Finance are premium. Where one of them appears on the website, you can tick "Email me about premium plans and launch news" and register your interest. This is the only marketing we do, and it applies only to people who tick that box. The box is never ticked for you, and the app on your phone never asks.

The launch list on our website

Before sign-up opens to everyone, our website has a Register interest form for people without an account.

5. Cookies and browser storage

Oxygene Finance sets only strictly necessary cookies — one in normal use, and a second only for the few moments of an Apple, Google or Microsoft sign-in:

NameWhat it doesHow long
fp_jwt Keeps you signed in. It is marked HttpOnly (page scripts cannot read it) and SameSite=Strict (other websites cannot use it). 8 hours, or until you sign out
fp_oidc Only while you are signing in with Apple, Google or Microsoft: a one-time check that the reply really answers the request you started. Up to 10 minutes, deleted once sign-in completes

The web app also keeps some things in your own browser's storage on that device:

We do not read these from your browser; they stay on that device. The planner figures are removed from the browser when you sign out, when your session ends, and when you close your account, so the next person to use a shared computer does not see them. Your preferences (theme, sidebar layout, and whether usage statistics are off) stay, because they hold nothing about your finances.

There are no analytics or advertising cookies. The usage statistics in section 2 use no cookie and no identifier stored for them: the website and the app send them straight to our own servers, a few at a time, with the sign-in you already have. If you switch them off, your browser keeps one note saying so (fp_analytics_off), so that it sends nothing even before you sign in. The Data (Use and Access) Act 2025 allows statistics about how a service is used to run unless you object, provided you are told clearly and can object easily — which is why there is a switch in Settings rather than a banner.

6. Signing in with Apple, Google or Microsoft

If you choose "Sign in with Apple", "Sign in with Google" or "Sign in with Microsoft", the provider confirms your identity and tells us:

If you sign in with a work or school Microsoft account, your organisation's administrators may be able to see that you have signed in to Oxygene Finance, and you may lose access to it if you leave. A personal account avoids both. We ask Microsoft only for your identity (the openid, email and profile permissions): we never ask for access to your organisation's directory, email or files, and we send your organisation nothing. What it can see is the sign-in record its own systems keep. We store the organisation's identifier with your sign-in, and nothing else about the organisation.

If you signed in with Apple, closing your account, or unlinking Apple in Settings, also asks Apple to revoke Oxygene Finance's access to your Apple ID, so the app no longer appears under "Sign in with Apple" in your Apple account settings.

We do not receive your password at any of these providers, your contacts, or anything else from your account with them. We do not tell them anything about your finances. Their handling of the sign-in itself is covered by their own privacy policies.

7. Sharing your household

Every plan includes one partner seat, and on premium you can invite more people, including a financial adviser or an accountant. Sharing is always your choice, and you control it:

Only share with someone the people in your household would be comfortable seeing their details.

If you are recorded in someone else's household — as a partner, child or parent, without an account of your own — and want to be removed, ask the account holder to remove you: on the Family page, they open your entry and choose Remove, which deletes your name, date of birth and any benefits recorded for you. Accounts in your name must first be moved to someone else or deleted. If you would rather not ask them, or they will not, email privacy@oxygene.xyz. We will ask the account holder to remove you, and if they do not, we will remove your details ourselves where the law gives you that right. If you tell us you are worried about your safety, we will not tell the account holder who asked. We will tell you what we did within one month.

8. Health and disability information

Financial information is not a "special category" under the UK GDPR. Some things you may choose to record are: a disability or illness benefit (for example Personal Independence Payment, Attendance Allowance, Employment and Support Allowance or Carer's Allowance), or using the guide for not being able to work through illness, tells us something about someone's health. The same is true of a pregnancy, if you use the new-child guide.

9. Who else handles it

We use a small number of service providers ("processors") who act only on our instructions:

To fill in prices and estimates, our servers also look things up from public data sources. These lookups are made by our server, not your device, and carry only what is needed for the lookup — never your name, email or balances:

We will list any new processor here before it starts handling your data.

10. Where it is kept, and how

11. How long we keep it

While your account is open, we keep what you have entered, because keeping it is the service.

WhatHow long
Link to confirm your email addressExpires after twenty-four hours
Link to reset your passwordExpires after thirty minutes
Signed-in device on the phone appNinety days without use, or until you sign it out
Diagnostic error reportsDeleted after thirty days
Usage statisticsDeleted after thirteen months, or at once when you switch them off or close your account
Launch list address, not confirmedDeleted after seven days
Launch list address, confirmedUntil you leave the list, or three months after sign-up opens to everyone, whichever comes first
Feedback you sentWhile your account is open; deleted when you close it
Server request logsDeleted after thirty days
Household invitations (and the address they were sent to)Deleted thirty days after they were used or expired, or when you cancel them
The record of when people you share with opened your householdThirteen months
Health and disability informationUntil you delete it or withdraw your consent
Your consents, the terms you accepted, your plan history and your account's history of changesWhile your account is open; deleted when you close it
Backups of the databaseA fixed rolling window, shown in Settings (see below)

Accounts nobody uses. If nobody signs in to an account for two years — on the website or the phone app — we email the account's address to say it will be closed in three months. Signing in before then is all it takes to keep it. If nobody does, the account is closed exactly as if you had closed it yourself. We do not close an account we have not been able to warn.

When you close your account, your sign-in and everything it holds — accounts, valuations, holdings, transactions, budget, journal, scenarios, family members, benefits, feedback, linked Apple, Google or Microsoft sign-ins and device sessions — are deleted from the live database immediately.

Backups. We back up the database every hour, so that if something goes wrong we lose at most about an hour of what people have entered. Each backup is encrypted before it leaves our server, and is then stored in a way that stops it being changed or deleted until a fixed retention window has passed. At the end of the window it is deleted automatically. The storage service runs that deletion once a day, so a backup can outlast the window by up to two days. Copies of your data remain inside existing database backups until those age out. Backups cover the whole database, so individual records cannot be removed from a backup that already exists — the retention window is the erasure guarantee. The exact length of the window is shown in Settings, under "Close your account", and is read from the same setting the automatic deletion uses, so the number you see is the number that is enforced.

What remains after deletion. The app keeps a change history for your account (what was edited, and what it was before). When you close the account, that history is deleted with everything else. Where we took an action on your account (for example unlocking it), our record that we did so is kept, but everything in it that described you is erased. A single record that an account was closed, and when, is kept without your name, username or email address.

Unconfirmed sign-ups. An email address that is never confirmed cannot be used to sign in or reset a password. It stays on the account (shown in Settings as awaiting confirmation) until you confirm it, change it, or close the account.

The test service. If you are testing Oxygene Finance before public launch, the test service is wiped at the end of the testing cycle and nothing on it moves to the main site. The tester notice explains this.

12. Your rights

Under UK data protection law you have the right to:

To exercise any right you cannot handle yourself in the app, email privacy@oxygene.xyz. We will reply within one month, and we will not charge you.

13. Other people's details, and children

Oxygene Finance is for adults (18 and over) managing their household's finances. You may record details of other people in your household — a partner, children, a parent you care for — so the plans can include them. Please only record what you need for that, and bear in mind they have the same rights over their information as you do over yours. If someone who is not a user asks us about data recorded about them, we will help them, and may need to contact the account holder — section 7 says how someone can be removed.

You may also record the people who look after your money — a solicitor, an accountant, a financial adviser, an executor — with their work phone number, email address, your reference with them and what they deal with, so that you, and anyone you share with or who takes over, can reach them. We hold these details for you, to show them back to you and in your handover pack; we do not contact these people or use their details for anything else. Please record only what you need for that.

14. Changes to this policy

If we change how we handle personal data in a way that matters, we will email you before the change takes effect, and the app will show a short notice asking you to accept the new version. The date at the top shows when this policy last changed.

15. Contact and complaints

Questions or requests about your data: privacy@oxygene.xyz.

To complain about how we handle your data, email privacy@oxygene.xyz and say it is a complaint. We will acknowledge it within thirty days, look into it, and tell you the outcome and what we have done. We keep a record of every complaint.

If you are still unhappy, you can complain to the Information Commissioner's Office: ico.org.uk/make-a-complaint, or 0303 123 1113. We would appreciate the chance to put things right first.