PulseWatch – AI website monitor with plain-language summaries

Name: PulseWatch – AI website monitor with plain-language summaries
Availability: InStock
Author: KaracaTR

by KaracaTR·Mar 2, 2026·1 point·0 comments

Visit Project View on HN

AI Analysis

●●SolidSolve My ProblemSlick

GPT-4o visual selectors beat CSS, but Distill.io and Syte already own website monitoring.

Strengths

•Visual point-and-click selector eliminates CSS friction for non-technical users.
•Plain-language change summaries (GPT-4o mini) are genuinely better UX than raw diffs.
•Chrome extension handles bot-protected and JS-heavy sites that traditional monitors fail on.

Weaknesses

•Website monitoring is a solved category—Distill.io, Syte, and Visualping already ship this with polish.
•Free tier (2 monitors/day) is tight; unclear how pricing scales vs established competitors.

Post Description

Hey HN, I built PulseWatch to solve a problem I kept running into — tracking changes across websites (price drops, job postings, API docs) without writing CSS selectors.

How it works: Point at any webpage, and GPT-4o analyzes the screenshot to suggest what to monitor. When something changes, you get a plain-language summary instead of a raw diff.

Tech stack: .NET 8 backend, Flutter (web + iOS + Android), PostgreSQL, deployed on Railway + Vercel. AI uses GPT-4o for visual element selection and GPT-4o mini for change summaries.

Some features:

- Visual point-and-click selector (no CSS needed)

- 40+ pre-built templates for popular sites

- Notifications via email, push, Slack, Discord, webhooks

- REST API + Chrome extension

- Free tier: 2 monitors with daily checks

Site: https://pulsewatch.watch

Demo: https://youtu.be/2SKgV4QqtNg

API docs: https://pulsewatch.watch/docs/api

Happy to answer any questions about the architecture or AI integration.