Terms
Version 2026-11-10.1
These are the terms between you and Summi, kept as short and clear as we can. They apply to families outside the Netherlands who use Summi in English. Questions? Email [email protected].
Who we are
Summi is made and offered by:
- Stormzaak (stormzaak.nl), the Netherlands, run by Michel
- Dutch Chamber of Commerce (KvK) number: 99299763
- VAT number: NL005381366B73
- Address: Van Haersmasingel 76, 9062 GC Oentsjerk, The Netherlands
- Phone: +31 6 82 45 36 66
- Email: [email protected]
What these terms cover
These terms apply to using Summi and to every purchase of Summi. By buying Summi or creating an account, you agree to them. How we handle personal data is in our separate privacy notice.
What you buy
- You buy one-off access to Summi for one family: the parents or carers and the children in the same household. You can add several children.
- It is not a subscription. Nothing renews automatically and you never pay again.
- You get all the maths games that are in Summi when you buy, the parent area, and the updates that come out afterwards. If we ever add a whole new subject, we will say clearly beforehand whether it is included.
- Some parts of Summi are only available in Dutch for now. What is available in English is what you see in the game and on our website before you buy.
- Access is for your family. Please don’t resell your account or share it.
Price and paying
- The price is shown before you pay, in your currency, including VAT or sales tax where that applies. That is the total: there are no extra costs.
- On our website outside the Netherlands, you pay through Mollie or Paddle; the checkout shows which one. With Mollie, we sell Summi to you and Mollie B.V. only processes the payment, usually by card. With Paddle, Paddle.com Market Limited is our reseller and the Merchant of Record: it sells Summi to you, takes the payment, handles tax and sends your receipt. Paddle’s buyer terms then apply to the payment itself; these terms apply to Summi. We never see your card or bank details.
- In the app, you pay through the App Store or Google Play, under Apple’s or Google’s terms.
- You get access as soon as the payment has gone through, and a confirmation by email.
14 days to change your mind
You have 14 days to change your mind, starting on the day you buy. You can use Summi during that time. If you don’t want to continue, tell us within 14 days and you get your money back in full. You don’t have to say why. Your access to Summi then ends.
This is more than the law requires for digital content in the UK, where the right to cancel usually ends once you start using it. We give you the full 14 days anyway.
Tell us by emailing [email protected], for example with the form below. You are on time if you send your message within 14 days.
Model cancellation form
To: Stormzaak (Summi), [email protected]
I hereby give notice that I cancel my contract for the supply of the following digital content: access to Summi for my family.
Bought on: …
Email address of the account: …
Name: …
Date: …
Bought on our website? We arrange the refund through Mollie or Paddle, to the card or account you paid with. Bought in the app? Apple or Google handles refunds; request it there.
Other refunds
- If Summi doesn’t work because of a fault on our side and we don’t fix it within a reasonable time, you get your money back, also after the 14 days.
- If you live in the UK, your rights under the Consumer Rights Act 2015 also apply: digital content must be of satisfactory quality, fit for purpose and as described.
Your account and your children
- You create an account as a parent or carer, and you must be 18 or older.
- Your children play with their own profile under your account. You are responsible for their use of Summi and keep an eye on it. Friends and notifications for a child stay off until you turn them on.
- Keep your password and the parent area PIN to yourself.
- Don’t use Summi in a way that harms the game or other users, such as trying to break in or overload it.
Availability
- We do our best to keep Summi working well and without interruptions, but we can’t promise it will always work without errors. Sometimes there is maintenance.
- Summi works in a modern browser and in the app for iOS and Android. We can’t promise it works equally well on every device.
- If Summi ever stops, we will tell you at least three months in advance, so you can download your children’s data.
Stopping and deleting
- You can delete your account and your children’s data yourself at any time in the parent area. This is immediate and can’t be undone.
- If you delete your account after the 14 days, you don’t get your purchase back.
- If you seriously break these terms, we can end your access. We will tell you first, unless the situation is too serious for that.
Rights in Summi
Summi, the questions, the illustrations and the software belong to Stormzaak. You may use Summi for your family, but not copy it, resell it or make your own product from it.
Our responsibility
- Summi is practice alongside school. We work hard to make the questions correct, but we don’t guarantee particular learning results.
- Our liability is limited to the amount you paid for Summi, except where we caused harm on purpose or through gross negligence, or where the law doesn’t allow a limit (for example for death or personal injury caused by negligence, or fraud).
- Nothing in these terms takes away your legal rights as a consumer in the country where you live.
Changes
We may change these terms, for example when the law or Summi changes. We will tell you about important changes by email beforehand. Changes never apply backwards to what you already bought: your one-off access stays one-off.
Complaints and the law
- Got a complaint? Email us. We reply within 14 days and look for a solution together.
- Dutch law applies to these terms. If you live outside the Netherlands, you keep the protection of the mandatory consumer laws of your own country, and you can take a dispute to the courts where you live.