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How to Know If Someone Has WhatsApp Installed?

WhatsApp has become an integral part of modern communication, enabling people to stay connected across the globe. It is one of the most widely used messengers of all time. Especially, in many developing countries like India, Nigeria, the Philippines, and Indonesia, WhatsApp is your go-to messenger app. However, there might be times when you need to ascertain whether someone has WhatsApp installed on their device. In this article, we’ll explore various methods to determine if someone has WhatsApp installed on both iOS and Android operating systems. By utilizing these techniques, you can quickly find out who has installed WhatsApp or not. 


Methods to Detect WhatsApp Installation

These are some pretty easy ways to know whether someone has WhatsApp installed or not. 

Contact List 

Check One of the simplest methods to determine if someone has WhatsApp is by checking your contact list. If the person’s contact appears with a profile picture, status, and last seen information, it’s likely they have WhatsApp. However, this method relies on the assumption that the person has saved your number and shared their details on WhatsApp.

Messaging Apps Folder 

On Android devices, you can explore the messaging apps folder. If WhatsApp is present within this folder, it indicates the app is installed. To find this folder, navigate to the app drawer and look for a folder containing messaging apps like WhatsApp, Messenger, or Telegram. This method can be used in case you want to sneak in on someone’s WhatsApp without them knowing.

Direct Inquiry 

A straightforward approach is to directly inquire whether the person uses WhatsApp. You can send them a message on a different platform or ask them in person. While this method depends on the person’s honesty in responding, it can provide direct confirmation.

Shared Content 

If the person has shared photos, videos, or documents with you on WhatsApp previously, it’s a strong indicator of WhatsApp installation. However, this method might not be foolproof, as someone could have used WhatsApp Web or another device to share the content.

How to Know If Someone Has WhatsApp Installed?

The process itself is not hard it’s pretty easy, just do the following:

In Android

You need to update a new number on your phonebook/contacts, Each phone can be different in its interface options, but largely the process is the same. 

  • Open your call dialer and key in the numbers. See no 3 in the below image.
  • Now select the appropriate option ‘Create New Contact’ or ‘Add to Contact’ depending on your choice. See no 1 & 2 in the below image.

  • Then select ‘create a new contact’. The ‘Add contact’ option above is for saving new numbers in previously saved contacts.
  • Feed in your name and select where to save the contact data. You can save it in your drive Google or iCloud, SIM, Device etc.

  • Now search for the contact in the Contacts app, and tap on it Now, When the contact page opens, you will see the WhatsApp option like the screenshot below.

If you don’t see the WhatsApp icon, it is possible that the person has not installed WhatsApp using that particular phone number.

In iOS

After downloading your WhatsApp application from your Apple Store and installing it, you have to make sure that the user is present or not. Here are the steps:

  • Open WhatsApp and log in.
  • Now tap on ‘Chats’.
  • You need to tap on the ‘New contact’ option.
  • You can type in the name of the contact and number.
  • If a green tick mark appears with a message below ‘WhatsApp Account’ that means the person has a WhatsApp app.
  • If there are no tick marks and a message appears as ‘Not on Whatsapp’, it means the person is not on WhatsApp.

How to Check If Someone Has Uninstalled WhatsApp?

Here are a few indicators that might suggest someone has uninstalled WhatsApp:

No Last Seen

If the person’s “last seen” timestamp doesn’t update for an extended period, it could indicate that they have uninstalled WhatsApp. However, this is not a foolproof method, as users can also set their last seen status to be hidden even when they’re active.

No Profile Picture or Status Updates

When someone uninstalls WhatsApp, their profile picture and status updates will not be visible to you.

Messages Not Delivered

When you send a message to someone who has uninstalled WhatsApp, you’ll typically see a single gray checkmark (indicating the message has been sent) but not a second checkmark (indicating the message has been delivered).

No Online Status

If the person’s online status was previously visible to you, it will no longer be visible when they have uninstalled the app.

Calls Not Going Through

When you try to make a voice or video call to someone who has uninstalled WhatsApp, the call won’t go through, and you’ll usually see a message indicating that the call couldn’t be placed.

Can We Check If A Number Has WhatsApp Android Programmatically?

Yes, you can but it is fairly technical, and it’s better if you just learn the other fixes unless you are a programmer. Since you are able to know it using various methods as explained in this article, why would you go for writing code for it which will surely not be easy for you unless you are a coder?

How to Check if a WhatsApp Account is Active?

If a contact is currently using WhatsApp, their status will show as “Online.” However, this is only visible if the contact has allowed their online status to be seen by everyone or by your contacts.  If they have some privacy settings enabled, you may not be able to see their online status. Further, you can make use of Whatsdog App to monitor someone’s Whatsapp account.


In today’s interconnected world, WhatsApp has become a staple communication tool. While determining if someone has WhatsApp installed isn’t always straightforward, the methods mentioned in this article can offer valuable insights. By checking contact details, exploring device folders, utilizing voice assistants, and employing direct inquiries, you can better gauge the presence of WhatsApp on both iOS and Android devices.

About the author


Shelly is an avid reader, and the love of reading takes her to content writing eventually. She loves writing on various topics.

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