n8n Workflow: Track App Store Changes with Bright Data + GPT + Slack

Track App Store changes automatically—every Monday—then get a GPT-powered update in Slack

This n8n workflow monitors competitor iOS App Store listings, detects what changed since last week, and sends a concise weekly digest to Slack—using Bright Data for scraping and GPT-5.6 to explain only the differences.

What this workflow does

• Runs on a schedule: A schedule trigger launches the workflow every Monday morning.
• Scrapes App Store listing snapshots: It reads a configured list of App Store URLs and submits them to Bright Data’s Web Scraper API to create a snapshot job.
• Polls until ready: The workflow polls Bright Data until the snapshot JSON is available (or the max poll limit is reached), then downloads the data.
• Normalizes key fields: Each listing is converted into a consistent set of fields (e.g., version, price, subtitle, description hash/head, screenshot count, languages, rating, and one-star share), while errored rows are dropped.
• Compares against last week: It loads prior values from an n8n Data Table, finds meaningful changes per app, and upserts current values back into the table.
• Explains changes with GPT: If anything changed, it sends the change JSON (up to a configured maximum) to OpenAI (GPT-5.6) to generate short, grounded explanations.
• Sends a Slack digest: It posts a single weekly summary to the configured Slack channel—or sends nothing on a quiet week.

Use cases

• SaaS operators tracking competitor release cadence, pricing shifts, and rating changes.
• Automation engineers setting up recurring App Store monitoring with reliable change detection.
• Marketing/strategy teams needing a weekly, human-readable summary without manual checking.

Technical details

• Integrations: Bright Data Web Scraper API, OpenAI (GPT-5.6), Slack OAuth, n8n Data Table.
• n8n nodes/tools used: if, set, code, no op, wait, slack.
• Key setup: Configure Bright Data HTTP Header Auth, OpenAI credentials (model set to gpt-5.6-terra), and Slack OAuth; create the n8n Data Table for previous snapshots.