How to Set Up CronAlert Push Notifications on Android

When your website goes down at 2 AM, an email sitting unread in your inbox is not going to help. What you need is your phone buzzing on the nightstand with a notification that says exactly what broke and when. CronAlert delivers that through web push notifications -- and on Android, setting it up takes about two minutes. There is no native app to download from the Play Store. No app store review process to wait on. Just open your browser, allow notifications, and you are covered.

This guide walks through the full setup: enabling push notifications, optionally installing CronAlert as a home screen app for the best experience, and making sure Android does not silently swallow your alerts.

What you need

The requirements are short:

• An Android phone or tablet running a recent version of the OS
• Chrome, Edge, or Firefox -- any of these browsers support web push on Android. Chrome is the most common and best tested.
• A CronAlert account -- push notifications are available on all plans, including the free tier

That is it. No special Android version required, no sideloading, no Play Store involved.

Step-by-step setup

On your Android device, open Chrome and navigate to cronalert.com/app. Log in to your account if you are not already signed in. Make sure you are using Chrome (or Edge or Firefox) -- Samsung Internet and some other browsers do not support web push notifications.

This step is not required, but it meaningfully improves the experience. CronAlert is a Progressive Web App (PWA), which means Chrome can install it to your home screen just like a native app.

Tap the three-dot menu in Chrome and look for "Install app" or "Add to Home Screen". Tap it, confirm, and CronAlert will appear as an icon in your app drawer and home screen. From that point on, it opens in its own standalone window -- no browser address bar, no tabs, just the app.

Why bother installing? Three reasons:

• More reliable notifications -- installed PWAs are less likely to have their notifications suppressed by Android's battery optimization
• App icon on your home screen -- quick access without navigating through browser bookmarks
• Standalone window -- CronAlert runs in its own window, separate from your browser tabs, which feels cleaner and keeps it out of the way

In CronAlert, go to Alert Channels in the sidebar and tap Add Alert Channel. Select Push Notification as the channel type.

Chrome will display a permission prompt asking whether cronalert.com can send you notifications. Tap Allow. This is the standard Android notification permission -- the same one any website or app uses. Behind the scenes, CronAlert registers a service worker at /sw.js that handles incoming push events, and your device's push subscription is saved to your account.

CronAlert automatically detects the device type from your browser's user agent, so the channel will be labeled as an "Android" device.

Give the channel a descriptive name -- something like "My Android" or "On-call phone" -- so you can identify it later if you add more devices. Tap Save to create the channel.

After saving, use the Send Test button on the channel to verify everything is wired up correctly. You should see a notification appear in your Android notification shade within a few seconds. If it arrives, you are good to go. Assign this alert channel to any monitors you want to be notified about.

What notifications look like

CronAlert push notifications are standard Android notifications. They appear in your notification shade and on your lock screen, just like notifications from any other app. Each notification includes:

• Title -- either [DOWN] monitor-name or [RECOVERED] monitor-name, so you can tell the status at a glance without opening anything
• Body -- the URL that was checked, the error or status code, and a timestamp
• Tap action -- tapping the notification opens CronAlert directly, taking you to the relevant monitor details

The notification payload is structured like this:

{
  "title": "[DOWN] Production API",
  "body": "https://api.example.com/health -- 502 Bad Gateway -- 2026-03-10T14:32:01Z"
}

Recovery notifications follow the same pattern:

{
  "title": "[RECOVERED] Production API",
  "body": "https://api.example.com/health -- Back up -- 2026-03-10T14:36:18Z"
}

The bold title and concise body make it easy to triage from your lock screen without even unlocking your phone. You immediately know what is down, what URL failed, and when it happened.

Tips for reliable delivery

Check Chrome notification settings

Android lets you mute notifications per-app and per-site. If you are not receiving alerts, go to Settings > Apps > Chrome > Notifications and make sure notifications are enabled. Also check Chrome's per-site notification settings: open Chrome, tap the three-dot menu, go to Settings > Notifications, and make sure cronalert.com is not blocked.

Exempt from battery optimization

Android's battery optimization can delay or suppress push notifications for apps it considers inactive. To prevent this, go to Settings > Apps > Chrome (or "CronAlert" if you installed the PWA) and look for Battery or Battery optimization. Set it to Unrestricted or Not optimized. This is especially important on Samsung, Xiaomi, and OnePlus devices, which tend to be more aggressive about killing background processes.

Install the PWA for best results

As mentioned in the setup, installing CronAlert as a PWA gives it a dedicated presence on your device. Android treats installed PWAs more like native apps, which means the OS is less likely to throttle or delay their notifications. If you are relying on CronAlert for critical production alerts, installing the PWA is worth the ten seconds it takes.

Troubleshooting

Not getting the permission prompt?

If Chrome does not show the "Allow notifications" prompt when you create a push notification channel, the permission may have been previously denied. Open Chrome, navigate to cronalert.com, tap the lock icon in the address bar, and check the Notifications setting. If it says "Blocked," change it to "Allow" and try creating the channel again.

Notifications not arriving?

The most common cause on Android is battery optimization. See the tip above about exempting Chrome or CronAlert from battery restrictions. Also make sure your device is not in Do Not Disturb mode, and that Chrome has not been put to sleep by any "device care" or "battery saver" features specific to your phone manufacturer.

Using Samsung Internet?

Samsung Internet does not support the Web Push API. If you are on a Samsung device, switch to Chrome for CronAlert. Chrome comes pre-installed on all Android devices, so you already have it. Once you set up push notifications in Chrome (or install the PWA), you do not need to keep Chrome open -- notifications will arrive regardless.

Frequently asked questions

Do I need to install CronAlert as an app to get push notifications?

No. Android Chrome supports web push notifications directly from the browser -- no installation required. That said, installing CronAlert as a PWA from the Chrome menu is recommended because it improves notification reliability, gives you an app icon, and provides a standalone window. But it is entirely optional. Push notifications work either way.

Can I receive notifications on multiple devices?

Yes. Each device gets its own push notification channel. Open CronAlert on each Android phone, tablet, or desktop browser where you want alerts, create a new Push Notification alert channel on each one, and assign your monitors to all of them. Each device receives notifications independently, so you can have your work phone, personal phone, and laptop all receiving alerts simultaneously.

What is the battery impact?

Minimal. CronAlert push notifications use the same system-level push infrastructure (Firebase Cloud Messaging) that native Android apps use. The service worker at /sw.js only wakes briefly to display the notification when one arrives -- it does not run continuously in the background or poll for updates. You will not notice any difference in your battery life.

Do push notifications work on Android tablets?

Yes. Any Android device running Chrome, Edge, or Firefox supports web push notifications. The setup is identical on phones and tablets. If you have a tablet that stays on a desk or mounted on a wall as a monitoring dashboard, adding push notifications to it is a quick way to make sure alerts are visible even when the CronAlert tab is not in the foreground.

Wrapping up

Push notifications on Android turn your phone into a real-time uptime monitor. No app store download, no native app to maintain, no monthly fee beyond what you are already paying (and the free plan includes push notifications). The setup takes two minutes: open CronAlert in Chrome, create a push notification channel, allow the permission, and you are done. The next time one of your monitors detects downtime, your phone will buzz with exactly the information you need.

If you do not have a CronAlert account yet, sign up for free -- 25 monitors, 3-minute checks, and push notifications on every plan. No credit card required.