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    Co-parenting, without the WhatsApp wars

    Co-parenting, on the record. Written communication between two homes, with a record neither side can rewrite. One subscription keeps Co-Parenting open for both homes.

    14 days free, no card needed. Cancel any time. One subscription keeps Co-Parenting open for both homes.

    UK company · UK GDPR · Email support@haevn.co.uk and a human replies

    Not ready yet? Try the free custody time calculator, no sign-up.

    The reality

    Plan your next four weeks with the free co-parenting schedule planner. Choose a rota, add holiday dates and copy a plan to discuss together, without signing up.

    Around 2.5 million separated families in Great Britain coordinate the lives of roughly 4 million children across two households (DWP, 2024). Cafcass received over 42,000 new private law children's cases in 2025/26 alone, the highest demand since March 2021.

    Most of those families end up running their lives across WhatsApp, a shared spreadsheet, and a calendar nobody fully trusts. Court-grade co-parenting apps typically charge per parent and start at around £99 a year per parent. The previously free options moved to paid models during 2025/26. See our honest comparison of UK co-parenting apps for named alternatives.

    The middle ground, the place where most low and mid-conflict separated families actually live, has had no built-for-purpose UK option. Haevn is built for that middle: tamper-resistant where it matters, simple where it can be, and part of the household admin that already runs on Haevn anyway.

    • “Whose week is it?”
    • “Who paid for the school trip?”
    • “What did we agree about Christmas?”
    • “Did you read my last message?”
    • “We need this in writing.”

    Sources

    What this looks like in practice

    The jobs to be done, named in plain English.

    • A calendar both households can see, with privacy preserved on either side.
    • A way to log shared child-related expenses and split them at any percentage.
    • Messages that cannot be edited or deleted after the fact.
    • A way to keep agreements about schools, medical care, and arrangements in writing.
    • A check on the wording of a message before it is sent.
    • Handover logs so the transition between households is documented.
    • Boundaries on when communication happens, so 11pm escalations do not derail the next morning.

    How Haevn handles it

    Each feature mapped to a job above. Built to work together.

    Plan, with shared events

    Calendar events visible to both households, marked clearly. Custody handover times built in.

    Each household keeps its private events private. Only events tagged 'shared' cross the boundary.

    Why this matters here. The calendar is where most co-parenting fights start. A clear, agreed view of who has the children when removes most of them before they begin.

    Read more on Plan

    Shared expenses, in Co-Parenting

    Log child-related expenses, split at any percentage (default 50/50, configurable).

    Expenses live in the Co-Parenting space both homes share, separate from each home's own money. Export the running total when needed.

    Why this matters here. Agreed splits, in writing, with timestamps. No 'I already paid for that' arguments six months later.

    Messages, sealed the moment they are sent

    Every co-parenting message is sealed with a digital fingerprint at the moment of sending. It cannot be edited, deleted or retracted afterwards, by either parent, or by us.

    Each message records when it was first opened by the other home. Exportable with verification codes.

    Why this matters here. What was said is what the record shows, permanently. No more 'I never saw it'.

    Tone check

    A check on the wording of a message before it is sent. Live today.

    It happens before you send. Once a message is sent, it is sealed as usual.

    Why this matters here. Messages written in a hurry are the ones that go badly. A moment to look at the wording helps keep the next exchange calm.

    A record you can hand over

    Either parent can export the complete record, every message and every logged expense, as a single document. Both parents generate the identical document.

    Every export carries a verification code. Anyone you give the document to can check it has not been altered at app.haevn.uk/verify, without the check revealing any of the record's content.

    Why this matters here. A record is only useful if the other side, a mediator, or a solicitor can trust it has not been changed.

    The record survives

    If the other parent deletes their account, the co-parenting record remains, kept for six years after the link ends, or until the child turns 25, whichever is later.

    Deletion of one account does not delete the shared record both parents rely on.

    Why this matters here. Evidence does not disappear because someone walks away.

    Two homes, linked

    Each parent keeps their own Haevn home. You link the two homes for Co-Parenting by invitation.

    Only the Co-Parenting space is shared. Each home's calendar, lists and money stay its own. Either parent can end the link.

    Why this matters here. Nobody joins the other's household. Each home stays private, and the shared part is only what the children need.

    Custody Handover Log

    Live today. Pickup times, handover locations, kit returning (uniform, lunchbox, medication), mood notes, incidents.

    Quick-add on mobile at the doorstep. Each entry timestamped and attributable.

    Why this matters here. The handover is the highest-friction moment of the week. Recording it calmly gives both parents a shared, neutral version of what happened.

    Quiet Hours (coming soon)

    Quiet Hours is on its way. Today, messages deliver as soon as they are sent. When it arrives, you will set message-free windows (for example, 9pm to 7am), and messages composed then will deliver in the morning.

    Planned as a per-conversation setting, agreed by both parents, visible to both.

    Why this matters here. Most co-parenting messages that go badly are sent late at night. A simple boundary, mutually agreed, removes the worst category of escalation.

    Court-aware, not court-only

    Most separated UK families do not need a courtroom-grade tool. They need something better than WhatsApp and cheaper than dedicated court-grade co-parenting apps, which typically charge per parent. Haevn is built for the middle: tamper-resistant where it matters, simple where it can be, and part of the household admin that already runs on Haevn anyway. See our honest comparison

    Haevn is a family hub first. Co-parenting tools appear only for households that link them, so there is no separate app to adopt and nothing conflict-shaped on the home screen. One subscription keeps Co-Parenting open for both homes, not a fee per parent.

    If you ever need an exportable record for mediation or proceedings, you have one. If you do not, you have a calmer life. The £6.99 a month keeps Co-Parenting open for both homes, with no per-parent fees.

    The point is not to win. The point is to make the next school run, the next handover, the next Christmas easier. The tool is there to take the friction out, not to add another layer of admin to an already exhausting life.

    • UK-built
    • GDPR-native
    • ICO Children's Code aligned
    • 14 days free, no card needed
    • Sensitive-data encryption at rest

    Editorially reviewed by Haevn's content team. Last verified: 6 November 2026 (tone check and Custody Handover Log confirmed live; co-parent expenses live in the Co-Parenting space; Child View is not available).

    Common questions

    Is Haevn court evidence?

    Not by default. The sealed, append-only message record is designed to be tamper-resistant, with digital fingerprints, timestamps, and verification codes checkable at app.haevn.uk/verify. Whether that record is admissible in court is a decision for the court and your solicitor. We do not make admissibility claims that we cannot back up.

    Can I use co-parenting without location sharing?

    Yes, completely. Location is optional, off by default, and never visible to the other household in any case. Your co-parent can never see your location, or your child's location in your home, through Haevn.

    How does Haevn's pricing compare to dedicated co-parenting apps?

    Haevn is £6.99 a month, or £69.99 a year. One subscription keeps the Co-Parenting space open for both parents. Everything else is for your own home, and each home has its own plan. Dedicated court-grade co-parenting apps typically charge per parent and start around £99 per parent per year. For two parents, that is roughly £200 a year against Haevn's £69.99. See our honest comparison

    Do both parents have to pay for a co-parenting app?

    No. Haevn is £6.99 a month or £69.99 a year, with 14 days free and no card needed. One subscription keeps the Co-Parenting space open for both parents. Everything else is for your own home, and each home has its own plan. Some specialist apps charge each parent: OurFamilyWizard Essentials is £107.99 a year per parent and AppClose £98.99 a year each (checked 18 October 2026). Compare the apps

    How do I share a calendar with my ex without sharing everything?

    Keep one shared calendar for the children and your own plans separate. In Haevn, each household's events stay private, and only events tagged 'shared' cross between the two homes. Put handovers, school events, clubs and appointments in the shared view. Private calendar entries, personal lists and private expenses stay with the person who made them.

    What is tone check?

    Tone check looks at the wording of a message before you send it, so you can rethink it first. You still decide what is sent. It sits alongside the message record, which neither parent can edit or delete once a message is sent.

    What happens if my co-parent edits or deletes a message?

    They cannot. Every co-parenting message is sealed with a digital fingerprint at the moment of sending, and cannot be edited, deleted or retracted afterwards, by either parent, or by us. Each message also records when it was first opened by the other household, so 'I never saw it' is answered by the record itself.

    Can our children see the messages between us?

    No. Children in either home do not see the Co-Parenting space: messages, expenses and the record are for the two parents only.

    How does the expense splitter work in practice?

    Either parent logs an expense (school trip, kit, medical, club fee). The default split is 50/50, but you can set any percentage (for example, 70/30) for an item or as the household default. Haevn keeps a running total of who owes what, with timestamps. You can export a statement at any time.

    Can I end the link if our relationship changes?

    Yes. Either parent can end the link at any time. Ending it stops new messages and sharing. The record up to that point is kept, so neither side loses it.

    How do we plan Christmas between two homes?

    Agree it early and write it down. Families often alternate Christmas Day each year, or split the day with a handover at lunchtime. Put the plan, handover times and travel in the shared calendar so both homes see the same thing. If you can't agree, GOV.UK explains the options, including mediation: [Making child arrangements if you divorce or separate](https://www.gov.uk/looking-after-children-divorce). Try the co-parenting schedule planner.

    Does Haevn replace a parenting plan?

    No. A parenting plan is a written agreement between parents about how arrangements will work, often facilitated by a mediator. Haevn is the tool that helps you live by the plan day to day. The two work together. Resolution and Cafcass both publish parenting plan templates that pair well with Haevn.

    What happens to the message log if I cancel my subscription?

    You can export all messages and logged expenses as a single document with a verification code before you cancel. Your data is yours, always. If either parent deletes their account, the shared co-parenting record remains, kept for six years after the link ends, or until the child turns 25, whichever is later, because it is a record both parents rely on.

    Does Haevn work for high-conflict separations?

    It can help, but for high-conflict separations under court order, a court-grade co-parenting app is often the right choice because of the explicit court reporting features in that category. Haevn is honest about this. We are built for low and mid-conflict coordination, where most separated families actually live. See our honest comparison

    Is my co-parenting data sold to advertisers?

    No. Haevn does not sell, share, or profile your data. Your family's information is never used to train AI models or build advertising profiles. Co-parenting data in particular is treated as sensitive: it is encrypted at rest, scoped to the people you share it with, and never used for any secondary purpose.

    Free custody time calculator

    Work out how many nights each home has across the year, and see the Child Maintenance Service band it falls in. No sign-up, nothing leaves your browser.

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    Tell us what would help

    Haevn is young and we build from what families tell us. If something is missing for you, email support@haevn.co.uk and a human replies.

    One plan. Everything in.

    Simple pricing. No surprises.

    • £6.99 / month
    • £69.99 / year
    • 14 days free, no card needed
    • Up to 8 family members
    • All features included

    Try Haevn free for 14 days

    Cancel any time. Your data, exportable, always. One subscription keeps Co-Parenting open for both homes.

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