How To Get Notification When Someone Is Online On WhatsApp

By Alex G

I remember the first time I needed to catch someone online on WhatsApp—it was urgent, but I kept missing them. I’d open the app, check their status, and close it again, only to repeat the process minutes later. Frustrating, right? I wished there was a way to get a notification the second they came online.

After some digging, I realized there were ways to make this happen. While WhatsApp itself has limited options, third-party apps and modified versions offer features that alert you when a contact is online. I tested multiple methods—some worked flawlessly, while others were unreliable or even risky.

In this guide, I’ll walk you through the best ways to get notified when someone is online on WhatsApp. Whether you’re waiting for an important reply, trying to coordinate with colleagues, or just curious about a friend’s activity, these solutions will help you stay updated in real time. I’ll cover everything from WhatsApp’s built-in features to third-party apps, along with the pros and cons of each method.

If you’ve ever found yourself refreshing your chat list, hoping to catch someone online, you’re in the right place. Let’s dive in and explore your options!

How To Get Notification When Someone Is Online On WhatsApp:

From the following methods you can know this thing:

1. Use a WhatsApp Online Status Tracker

One of the most efficient ways to get notifications when someone is online on WhatsApp is by using an online status tracker. These third-party apps monitor a contact’s activity and instantly alert you when they come online. Some advanced trackers even provide insights into their online patterns, showing how frequently they use WhatsApp.

While these tools can be helpful, they often require payment or special permissions, which could raise privacy concerns. If you decide to use one, make sure it’s a trusted app to avoid security risks.

Also, keep in mind that WhatsApp frequently updates its policies, which could affect how well these apps work in the future.

i. WATracker: WhatsApp Tracker

I found WATracker to be one of the most reliable WhatsApp tracking tools for getting instant online notifications. It alerts you the moment a contact comes online, making it perfect for those who want real-time updates without constantly checking WhatsApp. This app works discreetly, allowing you to monitor multiple contacts at once.

✔️ Instant Online Alerts: Get real-time notifications whenever your selected contact comes online.
✔️ Usage Insights: Track when and how long someone stays active on WhatsApp with detailed logs.
✔️ Multi-Contact Tracking: Monitor multiple numbers at the same time, making it useful for families or work-related communication.

Starting Price: $4.99/month

Pros:

✔️ Works in real-time with accurate alerts.
✔️Supports multiple contacts for tracking.

Cons:

🚫 May require a subscription for full features.
🚫Privacy concerns, as tracking someone’s activity may not always be ethical

Step 1️⃣ Get WATracker from the Google Play Store or App Store.

Step 2️⃣ Sign up and log in to access the dashboard.

Step 3️⃣ Enter the WhatsApp number you want to track.

Step 4️⃣ Turn on alerts to receive instant updates when they come online.

ii. OnlineNotify – Online Notify WhatsApp

I came across OnlineNotify, a handy WhatsApp tracking tool that sends real-time alerts when a contact comes online. It runs in the background and notifies you instantly, saving you from constantly checking WhatsApp. This tool is great for keeping track of important conversations without missing a moment.

✔️ Custom Alerts & Filters: Set notifications for specific contacts while ignoring others.
✔️ Instant Online Notifications: Get real-time alerts whenever a contact is online.
✔️ Last Seen & Activity Tracking: View detailed logs of when and how long someone was active on WhatsApp.

One-Time Fee of $2.99

Pros:

✔️ Sends fast and accurate online status alerts.
✔️Allows custom tracking settings for selected contacts.

Cons:

🚫 Only works if the contact hasn’t hidden their last seen status.
🚫Not officially supported by WhatsApp, which could lead to functionality issues.

Step 1️⃣ Get OnlineNotify from the App Store.

Step 2️⃣ Allow necessary access for notifications and tracking.

Step 3️⃣ Select the WhatsApp numbers you want to track.

Step 4️⃣ Turn on alerts to receive real-time updates when they come online.

iii. mSpy WhatsApp Online Alert

I found mSpy to be one of the most advanced tools for tracking WhatsApp activity, including real-time online alerts. It not only notifies you when someone comes online but also provides access to their chat history, calls, and more. This tool is perfect for parents, employers, or anyone who needs in-depth WhatsApp monitoring.

✔️ Instant Online Alerts: Get notified the second your selected contact appears online.
✔️ Full WhatsApp Monitoring: Track messages, call logs, and even media files exchanged on WhatsApp.
✔️ Stealth Mode: Works in the background without the target user knowing, making it completely undetectable.

Starting Price: $11.67/month

Pros:

✔️ Provides detailed tracking beyond just online notifications.
✔️Works discreetly without the person knowing they’re being monitored.

Cons:

🚫 Requires installation on the target device, which may not always be possible.
🚫Premium pricing makes it more expensive than simple online trackers.

Step 1️⃣ Create an account on the mSpy website and choose a subscription plan.

Step 2️⃣ Follow the provided setup instructions to install mSpy on the phone you want to monitor.

Step 3️⃣ Log in to your mSpy account to track WhatsApp activity.

Step 4️⃣ Turn on real-time alerts to get notified whenever the contact is online.

iv. WhatsDog

I discovered WhatsDog, a simple yet powerful app that notifies you the moment a contact comes online on WhatsApp. It tracks online activity and logs timestamps, so you can see exactly when and how often someone is active. This tool is great for those who want real-time WhatsApp monitoring without constantly checking the app.

✔️ Activity Logs: Track the exact times your contact was online and offline, even if they hide their status.
✔️ Simple & User-Friendly: Easy-to-use interface with clear activity insights.
✔️Instant Online Alerts: Get real-time notifications when a contact becomes active on WhatsApp.

WhatsDog is usually free

Pros:

✔️ Provides accurate online status tracking.
✔️ Works even if the contact has hidden their last seen.

Cons:

🚫 Only works for tracking one contact at a time.
🚫 Sometimes removed from app stores due to WhatsApp’s privacy policies.

Step 1️⃣ Get WhatsDog from the Google Play Store or an APK provider.

Step 2️⃣ Allow access to notifications and background tracking.

Step 3️⃣ Enter the WhatsApp number you want to monitor.

Step 4️⃣ Turn on alerts to get notified whenever they are online.

2. Keep an Eye on Their WhatsApp Activity

If you don’t want to rely on external apps, you can manually observe someone’s online activity. Simply open WhatsApp and check their chat window to see if they appear “Online” or when they were “Last seen.” This method is free and doesn’t require any third-party tools, but it demands patience and time.

It works best if you’re waiting for an important reply and don’t mind checking frequently. However, if the person has disabled their last seen or online status, this method won’t be effective.

Still, a little observation can go a long way in tracking their activity naturally.

3. Ask Them Directly

Sometimes, the easiest way to know when someone is online is to just ask them. If it’s someone you regularly chat with, like a friend or colleague, you can request that they inform you when they’re available.

This method is the most straightforward and avoids the hassle of third-party apps or manual tracking.If they’re comfortable, they might even turn on read receipts or share their availability with you.

However, this approach depends on mutual understanding, and not everyone may want to disclose their online habits. It’s best to use this method with close contacts rather than casual acquaintances.

4. Use WhatsApp Web for Easier Monitoring

WhatsApp Web can be a helpful way to track someone’s online status without constantly opening your phone. By logging into WhatsApp Web on your computer, you can keep their chat open in a separate tab and quickly glance to see when they’re online.

This is useful if you’re working on your computer and don’t want to keep checking your phone. However, just like the mobile app, this method won’t work if they’ve hidden their last seen or online status. If you’re using WhatsApp Web in a shared space, make sure to log out when you’re done to protect your privacy.

📢 Tips

If you’re waiting for a response, pin the chat or turn on message notifications to avoid missing their reply.

When the Person Reply

Choosing the Best Method for Getting WhatsApp Online Notifications

When deciding how to get notified when someone is online on WhatsApp, it comes down to speed, convenience, and access. Apps and tools offer a quick and automated way to receive real-time alerts, while manual methods require some effort and knowledge but don’t rely on third-party software.

Best Option Based on Your Needs:

1. Use apps like mSpy, WhatsDog, or OnlineNotify to get instant notifications whenever a contact is online. These tools work in the background and track activity without you constantly checking WhatsApp.

2. You can observe patterns, use WhatsApp Web on another device, or directly ask the person about their availability. This method requires some patience and skill but avoids third-party tools.

3. Advanced tracking tools like mSpy or MoniMaster provide detailed reports, including chat history, call logs, and media tracking, making them ideal for comprehensive monitoring.

If someone is checking on your online activity, he’ll also be online. You’ll be able to see the online tag changing into typing sometimes. If he’s checking your online activity, then has opened your chat. Therefore, you can send a message to the user and if the blue read marks appear immediately, it means that the user was stalking your profile to check your online status or last seen time.

If you want to know whether a person is online on WhatsApp, you need to open the WhatsApp application and then search for the user’s profile by entering his contact name.

Next, you need to click on the chat. Then click on the profile name at the top bar of the page and it will open the user’s WhatsApp profile. If you see the online tag under the user’s name, you’ll be able to know that he’s online or not.


This article is fact-checked & reviewed by


Disclaimer: This article is for educational purposes only; users should use the mentioned apps and methods responsibly and at their own risk, ensuring they are not used for any illegal or unethical activities.

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