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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 covers both households.

    14-day free trial. No card. Up to 8 family members.

    The reality

    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 record of agreed decisions about schools, medical care, and arrangements.
    • 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.

    The 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 The Plan

    The Pot, with shared expenses

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

    Track who owes what across school trips, kit, clubs, medical. 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.

    Read more on The Pot

    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'.

    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 under UK law for as long as the law sets.

    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.

    The Circle, two-household linked

    The non-resident parent can be in The Circle as a linked household.

    Granular permissions per feature. Either side can revoke at any time.

    Why this matters here. Permissions can match the relationship as it is, not as it was. They can be widened later or narrowed in a difficult moment, without losing the data.

    Read more on The Circle

    The Decision Log

    Every agreed change to schedule, school, medical care, logged with both parents' acceptance.

    Dated. Exportable. Supersedes are tracked, so the current agreed version is always clear.

    Why this matters here. Ends the 'I never agreed to that' loop. The agreed thing is the agreed thing.

    Custody Handover Log

    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

    Set message-free windows (for example, 9pm to 7am). Messages compose but deliver in the morning.

    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.

    Child View

    Older children can have a read-only view of their own calendar across both households.

    No exposure to parents' messages or finances. Configurable from age 11.

    Why this matters here. Children who can see their own week feel less anxious about what happens next. They are not exposed to anything that is not theirs to see.

    Read more on Child View

    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 covers the whole household, 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 covers both households' use within the same Haevn subscription, 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-day trial, no card
    • Sensitive-data encryption at rest

    Editorially reviewed by Haevn's content team.

    Common questions

    Is Haevn court evidence?

    Not by default. The sealed, append-only message record and the Decision Log are 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 (introductory £49.99 first year). One subscription covers both households' use within the same family group, up to 8 members. 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

    Does my co-parent need to subscribe separately?

    No. The same Haevn subscription covers both linked households. You add your co-parent to your family group, with a separate household role and scoped permissions. They use Haevn at no extra cost.

    Can my co-parent see my private events and expenses?

    No. Only items tagged 'shared' are visible to the linked household. Your private calendar entries, your personal lists, and your private expenses stay yours. Everything is opt-in to share.

    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?

    Child View is calendar-only and read-only, showing the child their own week across both households, with no exposure to messages, finances, or notes between the parents.

    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 revoke my co-parent's access if our relationship changes?

    Yes. Either side can revoke or narrow the linked household's permissions at any time. Revocation does not delete the historical record; it stops new sharing going forward. If circumstances change, permissions can be widened again later.

    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 the full sealed message record and shared expense log 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 under UK law for as long as the law sets, because it is a record both parents rely on. The Decision Log and Custody Handover Log will be included in the same export when they ship.

    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.

    One plan. Everything in.

    Simple pricing. No surprises.

    • £6.99 / month
    • £69.99 / year
    • £49.99 first year (limited time)
    • 14-day free trial, no card
    • Up to 8 family members
    • All features included

    Try Haevn free for 14 days

    Cancel any time. Your data, exportable, always. One subscription covers both linked households.

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