ScreenAlert — Read, Monitor & Alert on Screen Changes

Your screen,
always watched.

Select any area on your screen. ScreenAlert reads the text, monitors changes, and alerts you the moment something happens.

Download on the Mac App Store
// ScreenAlert is watching your screen...
let area = selectScreenRegion()
let text = OCR.recognize(area)
if text.value > 100.00 {
  alert("Price target reached!")
  Shortcuts.run("Notify Me")
}
How It Works
Three steps. That's it.
No complex setup, no integrations, no configuration files. Works with any app on your Mac.
1

Select an Area

Click the menu bar icon and draw a rectangle around any part of your screen.

2

Choose an Action

Read the text aloud, copy it, or set up a smart alert to monitor changes.

3

Get Notified

ScreenAlert watches for you and alerts you when your condition is met.

Features
Everything you need to monitor your screen.
Powerful features, simple interface.
🔍

OCR Text Recognition

Powered by Apple's Vision framework. Select any area and instantly read or copy the text — from any app, any window, any content on screen.

⚠️

Smart Alerts

Set conditions like "number greater than", "text changed", or "text equals". Get alerted the moment your condition is met with sound or voice.

📸

Image Change Detection

Monitor visual changes in any screen area with adjustable sensitivity. Perfect for dashboards, charts, or any UI that updates visually.

⚡

macOS Shortcuts Integration

Trigger any macOS Shortcut when an alert fires. Send a notification, run an automation, call a webhook — the possibilities are endless.

🗃

Window Tracking

Lock your selection to a specific window. The capture area follows the window even if it moves or goes behind other windows.

✂️

Text Processing

Clean up captured text before reading. Remove characters, numbers, spaces, emojis, or trim by position. See a live before/after preview.

Use Cases
Built for people who need to know.
ScreenAlert works with any app — even ones that don't support notifications.
📈

Trading & Finance

Monitor stock prices, crypto values, or portfolio balances. Get alerted when a number crosses your target.

💻

DevOps & Engineering

Watch build status, server dashboards, or deployment logs. Know the moment something changes without staring at a terminal.

🏅

Live Events & Sports

Track live scores, auction bids, or countdown timers. Never miss an important update while multitasking.

🔔

Any App, Any Content

If it's on your screen, ScreenAlert can read it and watch it. Works with apps that have no API or notification support.

🔒

Your data stays on your Mac.

ScreenAlert processes everything locally using Apple's Vision framework. No cloud services, no accounts, no subscriptions, no data collection. What's on your screen stays on your screen.

Stop staring. Start alerting.

Download ScreenAlert and let your Mac watch the screen for you.

Download on the Mac App Store

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