Your children’s calendar is yours alone.
Your children’s calendar, expenses and child maintenance, on your iPhone. No account and no server.
Calendar free. The rest, €9.99 once.
It isn’t on the App Store yet. We’ll email you the day it’s out.
What it does
Start with what you need today. The rest can wait.
You know who they’re with today and until when, without digging out the paperwork.

See the calendarMoney · 3 expenses freeLucía’s glasses, €120.You stop keeping the accounts in your head.

See expenses and child maintenancePaperwork · 1 report freeSomeone asks you for the year’s paperwork.You have it all in order if you ever need to show it.

See the reportsPrivacy
What you note down stays on your iPhone.
We don’t see your data, and we can’t.

Price
The calendar is free forever. Everything else costs €9.99, once, with no subscription.
Free, always
- The whole calendar, with holidays and school year
- Reminders, widget and send the week
- Face ID lock
Free, to try
- 3 expenses, with “Ask for my share”
- The first report, in full
Full Vaivén
€9.99once
- Unlimited expenses
- Child maintenance with inflation and joint account
- All reports, including the year with its receipts
If you don’t buy, nothing’s deleted and the calendar keeps working.
Questions
Does the other parent need to install the app?
No. Only you use it. Whenever you want, you send them a PDF or an image of the calendar or the expenses, and you see what you send before it goes out.
Do I need an account?
No. There’s no sign-up and no password. You only need your Apple ID to buy, as with any app.
Does it work as evidence in court?
No. Vaivén isn’t an official record and doesn’t promise to work as evidence. It helps you keep track of what you agreed, with clear dates and amounts. It isn’t legal advice and doesn’t replace your agreement or court order.
When does it launch?
The app isn’t on the App Store yet. Press the notify button and we’ll email you the day it’s out.
Who it isn’t for
Only you use Vaivén. If the two of you need a chat, or a record that a court asks for, other apps do that. Vaivén isn’t an official record and doesn’t replace your agreement or court order.
If there’s violence or fear, an app isn’t the tool. In Spain you can call 016.
We’ll email you once, on launch day.
Your email app opens with the message ready. There’s no form, so we don’t store anything.
Vaivén
Vaivén