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Free family apps: what actually limits every free plan

The KidBox team·Updated 2 Sep 2026·3 min read
9:41 · Good morning, Vitto
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The whole family, in a single app.

The family organiser for iPhone, Android and the browser, end-to-end encrypted. Free for a family of two parents.

No family app is free in the sense that it costs nobody anything: servers get paid for. "Free" means someone decided where to put the limit. The trick to choosing well is understanding which limit, because they're not all the same — and some only show up after three months, when the family already depends on the app.

The five kinds of limit

1. The number of people

The most common: the free plan covers one person, or two, and the third pays. Fine for a couple; not for a family with a grandparent who needs to see the calendar.

Check this: does the limit apply to members (who uses the app) or profiles (the kids, who may not have a phone)? They're different things, and the second is the one that matters when you have three children.

2. Storage

Documents, photos, results: they take space, and space costs. A free plan with a few hundred megabytes runs out with the first year of photos. To gauge whether it's enough: how many documents would you upload in a year? A typical family sits between 50 and 200, almost all small PDFs. Photos and videos are what weigh.

3. Features

Some free plans include everything with quantity limits; others include few features and the rest is paid. The second model is more honest on paper but more annoying in practice: you hit the wall when you need the feature.

4. Time

The "free trial": everything included for 14 or 30 days, then you pay. That's not a free plan, it's a demo. Nothing wrong with it, but you should know before uploading all the family's documents.

5. Data

The invisible limit: the app is free because the data is the product. For an app holding the kids' medical results and the family's location, it's the most serious limit of all. A reliable clue: if the app encrypts content so the service itself can't read it, it can't sell it. If it doesn't say so, ask why.

KidBox's Free plan, plainly

We'd rather say it ourselves:

  • Who: a family with two parents and their children, no credit card. Children's profiles don't count as members.
  • What: calendar, to-dos, grocery list, notes, expenses, wallet, documents, passwords, photos, chat, health, home, vehicles, pets, location, Alexa. That is, all the basic sections.
  • How much: an included storage allowance for documents and photos; the Pro and Max plans extend it.
  • AI: the family assistant and the AI-generated features (meal plan, fitness plan, trips, monthly analysis) are in the paid plans — because every request has a real cost. On Free there's a small number of trial messages, once, to see what it does.
  • Data: documents, notes, passwords, wallet, chat and photos are encrypted with the family key. We don't read them and we can't.

Details and current prices are in the plans section: we write them there once because we don't want a stale figure in an article.

The questions to ask any app

Before uploading the family's documents into an app, five questions worth asking:

  1. If I stop paying after a year, what happens to my data? Is it still readable? Can I export it?
  2. Does the second parent pay or is he/she included?
  3. Is content encrypted so the service can't read it?
  4. Does the app exist on all the platforms we use at home?
  5. Is the limit I'll hit first clear today, or will I discover it when I run into it?

An app that answers all five clearly is probably worth the time to try — free or not.

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