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24.10.2025

WhatsApp – the number 1 messenger app

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3 minutes reading time
6-17 years
Communication
Safety
Apps
Social Media
Tool description
© photothek.net

WhatsApp is the most popular messenger, even among children and young people. Almost everyone uses it to send messages, make calls or share status updates. It is important for parents to know the functions, risks and developments, especially since AI functions have been integrated into the app.

In a nutshell:

  • Free messenger app for Android, iOS and web
  • Functions: Chats, voice messages, calls, video telephony, files, contacts, location sharing, group chats, central search function
  • Age rating: USK from 12 years(Google Play Store)
  • Notes on use: content for different age groups, chats
  • allowed from 13 years according to provider
  • Additional features: AI integration(Meta AI), influencer channels, own channels, self-deleting messages, chat blocks

What is WhatsApp?

WhatsApp is a free messenger that is registered via the cell phone number. Contacts must be shared in the address book on the smartphone so that messages, photos, videos, voice messages, files or the location can be sent. Group calls and video calls are also possible.

Self-deleting messages that disappear after seven days and photos or videos that can only be viewed once are particularly practical. Chats can be locked with a code or fingerprint. Group administrators can delete messages from others, making it easier to moderate content.

The search function helps you to quickly find specific messages, links or media across all chats. This makes Messenger easier to use, but can also tempt you to bring up old conversations or private content that was actually forgotten.

Since the integration of Meta AI, an AI has been supporting users in formulating messages, summarizing long chats and suggesting emojis or answers. It can also answer questions, similar to a chatbot. The use of these functions is optional; users decide for themselves whether they want to use them. Channels on which influencers, celebrities, brands or journalistic media such as Tagesschau post content can be found under “News”. Children and young people can also create their own channels, for example for school projects or groups of friends.

What fascinates young people about it?

WhatsApp is quick, easy and always available. Young people use it to stay in touch, discuss homework or simply to belong. They share impressions of their everyday lives via status messages and profile pictures, similar to Instagram.

The new channels make WhatsApp even more attractive. Young people follow influencers there and receive trends, challenges and tips directly in the app. Having your own channels encourages creativity and organization, but can also increase the desire for reach or recognition.

The AI functions are also fascinating: An automatic writing assistant that suggests texts saves time and seems practical. However, young people should understand that this AI is not a neutral conversation partner, but learns from their input.

What can be problematic?

The read confirmation (“blue checkmark”) can create pressure to reply immediately. Large groups, such as class chats, are often confusing and can lead to conflict or stress. Quickly shared photos, videos or voice messages can be easily forwarded, which can encourage bullying or embarrassing situations.

Another risk is data processing by Meta. WhatsApp collects a lot of information: Contacts, profile and location data, device and usage information. This can be used for personalized advertising or to train the AI.

The integration of meta AI brings additional challenges. Many users do not know what data the AI processes or stores. Emotional bonds can also develop with chatbots, especially when children talk about personal topics. Such conversations often seem human, but they are not.

Influencer channels can show content that is unsuitable for children. Advertising, idealization and one-sided portrayals are common, often without clear labeling.

What does the provider think?

WhatsApp belongs to the Meta Group. The provider emphasizes that chats are end-to-end encrypted. This protects messages from being read, but only as long as no cloud backups are activated.

According to the provider, Meta AI should make it easier to use and deliver personalized results. At the same time, this means that the AI learns from the user’s data. Parents can check whether the AI functions are active in the settings. On some devices, this is only visible to users under 18. Use can be restricted or rejected if the device and app allow it.

What parents should pay attention

Children under the age of 16 may only use WhatsApp with parental consent. Talk together about responsible use: What information can be shared? Who is allowed to see messages?

Discuss risks such as bullying, inappropriate or dangerous content (e.g. pornographic material), “fake news” or emotional attachments to AI chatbots. Encourage your child to get help if they have unpleasant experiences.

Set the data protection settings together. Pay attention to your child’s privacy and give them the freedom they need. The privacy check (Settings ” Privacy ” Privacy check) shows at a glance which settings are active and who is allowed to see what. You can find step-by-step instructions at www.medien-kindersicher.de.

Your child should only allow contacts that they know in real life. Discuss the responsible use of your own channels and influencer content. Be a role model for respectful communication yourself.

Explain that AI answers are not always correct and do not replace real conversations. Keep the conversation going and show interest in your child’s digital world – without mistrust, but with awareness.

If you are looking for messengers with stronger data protection, you can use signal, Threema or NYZZU to avoid them.

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