How to turn off purchases on iPhone
On iPhone you can either require your approval for every purchase, or turn in-app purchases off. Both methods work — choose the one that fits your child’s age and your level of trust.

In short
If you use Family Sharing: turn on Ask to Buy for your child. Otherwise: Screen Time → Content & Privacy Restrictions → iTunes & App Store Purchases → In-app Purchases → Don’t Allow. Check both if your child has iPhone and iPad.
1
If you use Family Sharing
On your iPhone: Settings → Family. Select your child and turn on Ask to Buy. You then approve purchases before they go through. Apple calls it Ask to Buy. Approval comes as a push notification — so you can say no before money is taken.
2
If you want to block purchases
On your child’s iPhone: Settings → Screen Time → Content & Privacy Restrictions. Turn it on, and set a passcode your child does not know. Go to iTunes & App Store Purchases → In-app Purchases → Don’t Allow. Do not use their birthday or iPad passcode — choose a separate Screen Time code.
3
Also check saved cards
Remove payment cards your child can use in Apple ID or in games such as Roblox. A limit inside a game does not stop an App Store purchase. If you dispute a charge, you can complain to the Danish Consumer Ombudsman. Also check whether your child received gift cards — they can be used without Ask to Buy.
Related checks
All checks →Interactive checks that fit what you are reading about here.
More help in Denmark
If you need someone to talk to, use these — they are free, and they take parents and children.
- Danish Consumer Ombudsman
Supervises marketing and consumer protection in Denmark, including misleading purchases and subscriptions. Relevant for unexpected app purchases and fraud.
- Parents’ Helpline 35 55 55 57
Børns Vilkår. Free, anonymous counselling for parents and relatives in Denmark on 35 55 55 57. They take calls about screens, conflict and online problems.
Sources
Apple
Approve what kids buy with Ask to BuyDanish Consumer Ombudsman
Danish Consumer OmbudsmanParents’ Helpline
Parents’ Helpline