2Houses is a Belgian app for separated parents, in use since 2011. Harmoneaz is a Dutch app, built for the situation in the Netherlands. Below they are compared feature by feature.
We make Harmoneaz, so we are not impartial. That is why every claim has its source at the bottom of the page, and why we also say where 2Houses does better.
This page is written for parents living in the Netherlands. Prices are those in the Dutch App Store and Google Play.
The short answer
- Choose 2Houses if one parent wants to pay for the whole family, you also want to use the app in a browser, or a journal with photos and an info bank with child details matter to you.
- Choose Harmoneaz if you live in the Netherlands and want the schedule, agreements, child support with the annual indexation and expenses in one place, with a packing list for every handover and your data in the EU.
Side by side
The basics
| Harmoneaz | 2Houses | |
|---|---|---|
| Where the app is from | Netherlands | Belgium |
| App language | Dutch and English | English only in the App Store; website also in Dutch |
| Devices | iPhone, iPad and Android | iPhone, iPad, Android and web |
| Price | € 3.99 per month or € 34.99 per year | € 99 per year on the website; in the App Store € 15.99 per month or € 99.99 per year |
| Who pays | Per parent. The other parent can join without a subscription: view everything, check off the packing list and reply in Discussions | One parent, for the whole family |
| Free trial | 14 days | 14 days (credit card required) |
| Where the data is stored | In the EU (Ireland) | Unknown |
| Two-step verification | Yes | Unknown |
| Ads | No | Unknown |
Calendar and custody schedule
| Harmoneaz | 2Houses | |
|---|---|---|
| Fixed custody schedule | Yes | Yes, with a setup assistant |
| Swap or change | Temporary custody schedule of 1 to 90 days; the other parent is notified | Change request; the other parent accepts or suggests something else |
| Dutch school holidays | Yes, per child the North, Central or South region | Import |
| Week numbers | Yes | Unknown |
| In your own calendar (Apple, Google, Outlook) | Yes, with a subscription link | Yes |
Messages
| Harmoneaz | 2Houses | |
|---|---|---|
| Sent messages stay | Yes | Yes, cannot be deleted |
| A separate conversation per topic | Yes | Unknown |
| See whether the other parent has read it | Yes, with the time. Either parent can turn it off; then neither of you sees it, and the other parent sees that it is off | Unknown |
| Help with tone | Tone tip while typing; for a harsh tone, a confirmation first. On your own device, without AI | Unknown |
| Record an agreement from a message | Yes, with one tap as a parent agreement, calendar event, task or day note | Unknown |
| Take part without the app | No, both parents need an account | Unknown |
Expenses
| Harmoneaz | 2Houses | |
|---|---|---|
| Track expenses with a receipt | Yes, photo or PDF | Yes, with categories |
| Read receipts automatically | Yes, on your own device and without AI (photo or PDF) | Unknown |
| Splitting | Split ratio per type of expense, or through the child account | Balance of who owes what |
| Settling up | Monthly, with “Mark as settled” | Payment requests |
| Child support | Yes, with the annual Dutch indexation | Unknown |
Agreements, handovers and tasks
| Harmoneaz | 2Houses | |
|---|---|---|
| Record parent agreements | Yes, per topic and per child | Unknown |
| Packing list per handover | Yes | Unknown |
| Notes for a day or handover | Yes, day notes | Unknown |
| Tasks | Yes | Unknown |
| Child details, documents, photos | Documents with the agreements | Info bank with medical details, contacts and documents; journal with photos |
Who can join
| Harmoneaz | 2Houses | |
|---|---|---|
| Children | Yes, free account (schedule, calendar and packing list) | Yes |
| New partner, grandparents | Yes, with a view or edit role per section | Yes |
| Mediator or other specialist | Yes, with their own portal; can set up the group together with the parents | Yes, read only |
| Export | Export Discussions | Expense reports (PDF, CSV) and print messages |
Does it say “Unknown”? Then the app says nothing about it on its website or in the app store. So it may well exist; if in doubt, ask the app. Checked on 19 October 2026.
Strengths and weaknesses
Harmoneaz
Who it suits: Parents in the Netherlands who want the practical side well organised: schedule, agreements, child support and expenses.
Strengths
- Built for the Netherlands: school holidays per region, week numbers, child support with the annual indexation.
- Everything is connected: turn an agreement from Discussions into a calendar event, a task or a parent agreement with one tap.
- A packing list and day notes for every handover.
- Start an expense with a photo or PDF of the receipt: the app reads it on your own device, without AI, and fills in the amount, date and shop.
- When the other parent changes something in the calendar, a task or the custody schedule, you get a notification and see it straight away, without refreshing.
- Discussions per topic; messages stay, with a tone tip that works on your own device. You see when the other parent read it, unless one of you turns that off.
- Children, a new partner or grandparents can follow along, with their own rights per section.
- Two-step verification, data in the EU, no ads.
- The lowest price of the four, and the other parent can join without a subscription.
Weaknesses
- Each parent who wants to add things themselves needs their own subscription.
- No AI that rewrites your message.
- No photo album and no medical file per child.
- No web version for parents, and only Dutch and English.
2Houses
Who it suits: Families who want one subscription and mainly need a shared calendar, expenses and a family journal.
Strengths
- One subscription for the whole family, including children, grandparents and a mediator.
- Calendar with change requests and syncing, expense overview with reports.
- Info bank with child details and a journal with photos and videos.
- Around since 2011, and also usable on the web.
Weaknesses
- The Dutch App Store lists the app as English only.
- No child support, no parenting plan, no packing list.
- Unknown where the data is stored, and whether you can add extra security to your account.
- Low rating on Google Play (2.5).
Frequently asked questions
Is Harmoneaz a good alternative to 2Houses?
For parents in the Netherlands it often is. Harmoneaz puts the school holidays per region in the calendar and keeps track of child support with the annual Dutch indexation. 2Houses does have a web version, a journal with photos and one subscription for the whole family.
What does 2Houses cost, and what does Harmoneaz cost?
2Houses costs € 99 per year on the website, or in the App Store € 15.99 per month or € 99.99 per year, for the whole family. Harmoneaz costs € 3.99 per month or € 34.99 per year per parent. The other parent can view everything, check off the packing list and reply in Discussions without a subscription.
Where is the data stored?
With Harmoneaz, in the EU (Ireland). 2Houses does not say on its website where the data is stored.
Want to see more apps side by side? See our comparison of four co-parenting apps. Also compared: Harmoneaz or BeNice, Harmoneaz or OurFamilyWizard.
Sources
- 2Houses: pricing (Dutch)
- 2Houses: features (Dutch)
- 2Houses: frequently asked questions (Dutch)
- 2Houses: privacy (Dutch)
- 2Houses in the App Store
- 2Houses on Google Play
- Harmoneaz: frequently asked questions
- Harmoneaz: security
Checked on 19 October 2026. Is something out of date? E-mail us at support@harmoneaz.com and we will correct it.
