Let Me Know When

AI-powered website monitoring tool — track price changes, competitor updates, and content changes with automated alerts.

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letmeknowwhen.app
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Quick facts
What is it AI-powered website monitoring tool — track price changes, competitor updates, and content changes with automated alerts.
Pricing Paid — from $3.99/mo
Free tier No
Platform Web Application
Best for tracking competitor product launches and price changes, monitoring website uptime and SEO metrics
Domain registered 2015

Data updated Aug. 1, 2026

What does Let Me Know When do?

Let Me Know When is a straightforward, AI-powered service that keeps an eye on websites for you. You tell it which pages to watch—be it a competitor's site, a product listing, or a blog—and it automatically monitors them for changes. When something updates, like a price drop, a new article, or a design tweak, it sends you a notification via email or Slack. It's essentially a set of digital eyes that never sleep, designed to save you the time and hassle of manually checking sites.

What makes Let Me Know When stand out is the breadth of what it can track. Beyond simple text changes, it offers specialized monitoring for things like SEO performance, job postings, software version updates, and even crypto prices. The platform includes AI workflows that presumably help analyze or summarize the changes it detects, providing more context than just a simple 'something changed' alert. You can monitor up to 10 sites on the free plan, with paid tiers offering more sites, more frequent checks, and access to these AI-powered insights.

This tool is a solid fit for anyone who needs to stay informed about the digital landscape without constant manual refreshing. Digital marketers can use it to spy on competitors' campaigns and content strategies. E-commerce managers will find the price and stock monitoring invaluable for staying competitive. Small business owners can keep tabs on their own site's health and their industry's latest developments. It turns the tedious task of web watching into a automated, manageable process.

#ai alerts#competitor analysis#content-change-detection#price tracking#seo tracking#website monitoring

Key features

What makes it stand out
01
AI-driven competitor analysis and change detection
02
Price change and stock availability alerts
03
Content and design update notifications
04
SEO performance and website uptime tracking
05
Flexible notifications via email or Slack

Who is Let Me Know When for?

Who benefits most from this tool
tracking competitor product launches and price changes
monitoring website uptime and SEO metrics
getting alerts for job postings or event ticket availability

Pricing

Basic

$3.99/month
  • Up to 10 websites
  • 0 AI Workflows
  • 600 checks per month
  • 2 checks/website/day
  • Email notifications

Starter

$9.99/month
  • Up to 20 websites
  • 1 AI Workflow
  • 2400 checks per month
  • 4 checks/website/day
  • Email & Slack notifications

Advanced

$19.99/month
  • Up to 30 websites
  • 5 AI Workflows
  • 5400 checks per month
  • 6 checks/website/day
  • Email & Slack notifications

Trust & presence

Domain Domain registered 2015

Gallery

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